of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  F. Marocco Gaia
Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data
for the following tables and figures can be retrieved in electronic format
from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  L. Martin Polo Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  J.M. Martín-Fleitas Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  G. Marton Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  N. Mary Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Masip Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Massari Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Mastrobuono-Battisti Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  T. Mazeh Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  P.J. McMillan Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  S. Messina Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Michalik Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  N.R. Millar Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Mints Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Molina Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  R. Molinaro Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Molnár Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  G. Monari Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M. Monguió Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  P. Montegriffo Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  A. Montero Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  R. Mor Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Mora Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  R. Morbidelli Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  T. Morel Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Morris Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  C.P. Murphy Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  I. Musella Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  Z. Nagy Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Noval Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  F. Ocaña Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  A. Ogden Gaia
Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data
for the following tables and figures can be retrieved in electronic format
from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  C. Ordenovic Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  J.O. Osinde Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  C. Pagani Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  I. Pagano Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  L. Palaversa Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  P.A. Palicio Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Pallas-Quintela Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Panahi Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  S. Payne-Wardenaar Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  X. Peñalosa Esteller Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Penttil ̈a Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  B. Pichon Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A.M. Piersimoni Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  F.-X. Pineau Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  E. Plachy Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  G. Plum Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Prša Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Pulone Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  E. Racero Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  S. Ragaini Gaia
Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data
for the following tables and figures can be retrieved in electronic format
from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M. Rainer Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  C.M. Raiteri Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  M. Ramos-Lerate Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  P. Re Fiorentin Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  S. Regibo Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  P.J. Richards Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  C. Rios Diaz Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Riva Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  H.-W. Rix Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  G. Rixon Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  N. Robichon Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A.C. Robin Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  C. Robin Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  M. Roelens Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  H.R.O. Rogues Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Rohrbasser Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  N. Rowell Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  F. Royer Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Ruz Mieres Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  K.A. Rybicki Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  G. Sadowski Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Sáez Núñez Gaia Data Release 3: Mapping the asymmetric
disc of the Milky Way††thanks: The data for the following tables and figures
can be retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Sagristà Sellés Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  J. Sahlmann Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  E. Salguero Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  N. Samaras Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  V. Sanchez
Gimenez Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  N. Sanna Gaia
Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data
for the following tables and figures can be retrieved in electronic format
from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  R. Santoveña Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M. Sarasso Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M.S. Schultheis Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  E. Sciacca Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M. Segol Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  J.C. Segovia Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  D. Ségransan Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  D. Semeux Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  S. Shahaf Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  H.I. Siddiqui Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  A. Siebert Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  L. Siltala Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Silvelo Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  E. Slezak Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  I. Slezak Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  R.L. Smart Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  O.N. Snaith Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  E. Solano Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  F. Solitro Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  D. Souami Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  J. Souchay Gaia
Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data
for the following tables and figures can be retrieved in electronic format
from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  A. Spagna Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  L. Spina Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  F. Spoto Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  I.A. Steele Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  H. Steidelm ̈uller Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  C.A. Stephenson Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  M. S ̈uveges Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  J. Surdej Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  L. Szabados
Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The
data for the following tables and figures can be retrieved in electronic
format from CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  E. Szegedi-Elek Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  F. Taris Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M.B. Taylor Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  R. Teixeira Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  L. Tolomei Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  N. Tonello Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  F. Torra Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  J. Torra† Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  G. Torralba Elipe Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  M. Trabucchi Gaia Data Release 3:
Mapping the asymmetric disc of the Milky Way††thanks: The data for the
following tables and figures can be retrieved in electronic format from CDS
via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A.T. Tsounis Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  C. Turon Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24. Gaia Data
Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
the following tables and figures can be retrieved in electronic format from
CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  A. Ulla Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
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Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
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17, 21, and 24.  N. Unger Gaia Data Release 3: Mapping the asymmetric disc of
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17, 21, and 24.  M.V. Vaillant Gaia Data Release 3: Mapping the asymmetric
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Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
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17, 21, and 24.  E. van Dillen Gaia Data Release 3: Mapping the asymmetric
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cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
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Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
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CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  T. Wevers Gaia Data Release 3: Mapping the asymmetric disc of
the Milky Way††thanks: The data for the following tables and figures can be
retrieved in electronic format from CDS via anonymous ftp at
cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
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Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The data for
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CDS via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24. Gaia Data Release 3: Mapping the
asymmetric disc of the Milky Way††thanks: The data for the following tables
and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
bin/qcat?J/A+A/ : Tables 1 and 2, figures 16, 17, 21, and 24.  Ł. Wyrzykowski
Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way††thanks: The
data for the following tables and figures can be retrieved in electronic
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http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24. Gaia Data Release 3: Mapping the asymmetric disc of the Milky
Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  A. Yoldas Gaia Data Release 3: Mapping
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tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
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Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  P. Yvard Gaia Data Release 3: Mapping
the asymmetric disc of the Milky Way††thanks: The data for the following
tables and figures can be retrieved in electronic format from CDS via
anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or via
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Way††thanks: The data for the following tables and figures can be retrieved in
electronic format from CDS via anonymous ftp at cdsarc.u-strasbg.fr
(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables
1 and 2, figures 16, 17, 21, and 24.  H. Zhao Gaia Data Release 3: Mapping the
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and figures can be retrieved in electronic format from CDS via anonymous ftp
at cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-
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17, 21, and 24.  J. Zorec Gaia Data Release 3: Mapping the asymmetric disc of
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17, 21, and 24.  S. Zucker Gaia Data Release 3: Mapping the asymmetric disc of
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http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/ : Tables 1 and 2, figures 16,
17, 21, and 24.  T. Zwitter Gaia Data Release 3: Mapping the asymmetric disc
of the Milky Way††thanks: The data for the following tables and figures can be
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17, 21, and 24.

(Received ; accepted )

###### Abstract

Context. With the most recent Gaia data release the number of sources with
complete 6D phase space information (position and velocity) has increased to
well over 33 million stars, while stellar astrophysical parameters are
provided for more than 470 million sources, in addition to the identification
of over 11 million variable stars.

Aims. Using the astrophysical parameters and variability classifications
provided in Gaia DR3 , we select various stellar populations to explore and
identify non-axisymmetric features in the disc of the Milky Way in both
configuration and velocity space.

Methods. Using more about 580 thousand sources identified as hot OB stars,
together with 988 known open clusters younger than 100 million years, we map
the spiral structure associated with star formation 4-5 kpc from the Sun. We
select over 2800 Classical Cepheids younger than 200 million years, which show
spiral features extending as far as 10 kpc from the Sun in the outer disc. We
also identify more than 8.7 million sources on the red giant branch (RGB), of
which 5.7 million have line-of-sight velocities, allowing the velocity field
of the Milky Way to be mapped as far as 8 kpc from the Sun, including the
inner disc.

Results. The spiral structure revealed by the young populations is consistent
with recent results using Gaia EDR3 astrometry and source lists based on near
infrared photometry, showing the Local (Orion) arm to be at least 8 kpc long,
and an outer arm consistent with what is seen in HI surveys, which seems to be
a continuation of the Perseus arm into the third quadrant. Meanwhile, the
subset of RGB stars with velocities clearly reveals the large scale kinematic
signature of the bar in the inner disc, as well as evidence of streaming
motions in the outer disc that might be associated with spiral arms or bar
resonances. A local comparison of the velocity field of the OB stars reveals
both similarities and differences with the RGB sample.

Conclusions. This cursory study of Gaia DR3 data shows there is a rich bounty
of kinematic information to be explored more deeply, which will undoubtedly
lead us to an understanding of the dynamical nature of the Milky Way’s non-
axisymmetric structures.

###### Key Words.:

Galaxy: kinematics and dynamics – Galaxy: structure – Galaxy: disk – Galaxy:
bulge

##  1 Introduction

The determination of the structure and kinematics of the Milky Way has been
under investigation for more than a century. Researchers have been able to
describe the morphology of external galaxies using deep photometric surveys,
but the structure and evolution of our own Galaxy still remains a mystery in
many aspects. Difficulties rise from the fact that we are observing it from
the inside and cannot construct a complete picture as we can for other
galaxies. Until recently it was necessary to infer large scale characteristics
of the Milky Way from a limited amount of stars located in the Solar
neighbourhood. Efforts to overcome this limitation over the past two decades
have progressed thanks to a combination of large scale photometric and
spectroscopic surveys, such as SDSS (Jurić et al., 2008; York et al., 2000),
RAVE (Steinmetz et al., 2020), APOGEE (Majewski et al., 2017; Jönsson et al.,
2020) , LAMOST (Cui et al., 2012; Zhao et al., 2012), and GALAH (De Silva et
al., 2015). Gaia has revolutionised this field starting with first Gaia data
release (DR1), providing new insights on the stability of the Galactic disc
(e.g. Gaia Collaboration et al., 2018b; Antoja et al., 2018), its merger
history (e.g. Helmi et al., 2018; Belokurov et al., 2018), its structure
through the discovery of new open clusters (e.g. Cantat-Gaudin et al., 2018;
Castro-Ginard et al., 2019), to name a few. These results largely used the
unprecedented amount of about 7 million stars with 6-dimensional phase space
information in Gaia’s second data release (DR2). The sample with Radial
Velocity Spectrometer (RVS) measurements of Gaia Collaboration et al. (2018b),
with full 6D phase space measurements, already showed that the disc of the
Milky Way is not kinematically axisymmetric. Since then a large number of
contributions have been published providing new results and characteristics of
the Milky Way disc. We refer the reader to Brown (2021) for an updated review
of the Milky Way with Gaia compared to a pre-Gaia view (e.g. Bland-Hawthorn &
Gerhard, 2016). The purpose of this contribution is to highlight the new
information that is contained in the most recent Gaia data release regarding
the structure of the Milky Way’s disc, as revealed in configuration and
velocity space.

Being rich in gas and having a disc structure, it was immediately expected
that the Milky Way would have non-axisymmetric structures, like other spiral
galaxies. Clear evidence of spiral structure from the distribution of local OB
associations has been known since the 1950s (Morgan et al., 1953). Since then,
the location of spiral arms in density in the local neighbourhood has been
studied using different tracers, such as giant molecular clouds, high-mass
star-formation region masers, H II regions, and young stars (OB stars,
Cepheids, young open clusters). Using parallaxes and proper motions of masers
from the BESSEL survey, Reid et al. (2019) built logarithmic models of the
Galactic spiral arms. The main arms identified in the model are: Norma-Outer
arm, Perseus, Sagittarius-Carina arm (Sag-Car hereafter), and Scutum-Centaurus
arm. Another arm included is the Local Arm, which in the past has been mostly
considered as a minor feature with respect to the other arms just mentioned,
as the name suggests. Poggio et al. (2021), with a local OB sample, Cepheids
and young open clusters, and similarly Hou (2021) with spectroscopically
confirmed OB stars, made maps showing the spiral arm segments of the Perseus,
Local and Sag-Car arms, extending the arm segments towards the third and
fourth quadrant where the masers are mostly absent. While some progress has
been made in detailing the large-scale spiral structure as evidenced by star
formation products, the dynamical nature of these arms and the mechanisms
causing their formation remains unknown.

The Galactic bar in the inner disc is another long-known asymmetry of the
Galaxy, whose kinematic signatures can be found from the inner to the outer
disc. Like many external barred galaxies, the Galactic bar has a boxy-bulge
shape, but its length, orientation angle and angular velocity are not yet well
constrained. In this instance we now have a strong asymmetry in the stellar
distribution, at least for the inner regions of the Milky Way. While some
evidence of asymmetry in the form of spiral arms extending further out from
the bar in the stellar disc is seen in the NIR (Drimmel, 2000; Churchwell et
al., 2009), it has been challenging to find confirmation that the Milky Way
hosts a density-wave like structure in its kinematics. From earlier data
releases, Gaia revealed that the velocity space of the stars is rich with
structure. Most notably, the presence of arches and ridges in the $V_{\phi}-R$
space (galactocentric azimuthal velocity and radius) indicate large scale
kinematic phenomena in the Galactic disc (Antoja et al., 2018; Ramos et al.,
2018; Fragkoudi et al., 2019; Khanna et al., 2019). Disentangling these into
identified resonances with the bar (Trick et al., 2019; Fragkoudi et al.,
2019; Trick et al., 2021; Monari et al., 2019; Laporte et al., 2020) and/or
spiral arms and/or external perturbations is an ongoing process (Hunt et al.,
2019; Khanna et al., 2019; Khoperskov & Gerhard, 2021), and has proven
difficult, mostly due to our detailed knowledge of stellar kinematics being
contained within at most a few kiloparsecs of the Sun.

To assist us in understanding the kinematics of the Milky Way, comparison
between the observations and models will be important, and some of the
previous works already mentioned have used this approach. Other recent works
focused on how the spiral arms or a Galactic bar change the expected radial,
tangential and vertical kinematic maps include Faure et al. (2014); Monari et
al. (2016); Hunt & Bovy (2018); Monari et al. (2019); Tepper-Garcia et al.
(2021), based on either test particle simulations or pure N-body simulations.
The observable used to compare with the data can either be directly mapping
the average or dispersions of the velocity components on the galactic plane,
or checking the known moving groups in the Solar Neighbourhood, or the ridges
in the azimuthal velocity versus radius diagram. In any case, an appropriate
comparison of models to data must take into account the selection effects and
uncertainties in the data. It is important to check how these affect the
prediction in contrast to ideal noise-free data. Romero-Gómez et al. (2015)
show the capabilities of the Gaia nominal mission to constrain the bar
characteristic and construct Gaia mock catalogues based on the Gaia science
performance prescriptions for disc Red Clump stars.

Aside from the bar, spiral arms and the galactic warp, there has been some
kinematic evidence of additional asymmetries which may indicate disequilibrium
on a larger scale. With the RAVE survey, Williams et al. (2013) showed the
presence of large scale streaming motion in the disc, and revealed differences
above and below the Galactic plane. With SDSS data, Widrow et al. (2012)
discovered similar wave-like compression/rarefaction features seen in both
number density and bulk velocity, as well as towards the Galactic anticentre
with LAMOST data (Carlin et al., 2013). The large scale velocity field has
also been mapped using highly precise line-of-sight111We adopt this
terminology to avoid confusion with galactocentric ”radial velocity”.
velocities and distance tracers such as Red Clump giants (Bovy et al., 2015;
Khanna et al., 2019a). Their results hinted at streaming motion on scales much
larger than about 2.5 kpc, but the analysis was likely limited by
incompleteness in data coverage. As a demonstration of the enhanced astrometry
and photometry in Gaia EDR3, Gaia Collaboration et al. (2021a) mapped the
kinematics of the disc out to 14 kpc from the Galactic Center (GC). By
selecting data in a narrow azimuthal range (20∘ about the Galactic
anticentre), they studied the azimuthal and vertical velocity components,
without requiring line-of-sight velocities. The large sample in their study
allowed dissection of the stellar rotation curve in both the young, as well as
the older population of stars. Additionally, they showed that kinematic
features (such as ridges in $V_{\phi}-R$ space) seen in the inner disc with
Gaia DR2, extended out to at least $R=14$ kpc. By separately considering the
stars above and below the Galactic plane, they also revealed that the lower
disc has predominantly higher rotational velocities than the upper disc.

In this paper, we show the extraordinary capabilities of Gaia DR3 to shed
light on the structure and kinematic issues mentioned above. We use similar
tracers as other works, using only the new information provided in Gaia DR3 to
select our samples, and then to map both the density and the kinematics over a
large portion of the disc. The paper is organised as follows. Section 2
describe the selection of the four tracers used in this work, namely clusters,
Cepheids, OB stars and red giant branch (RGB) stars, providing a description
of their main properties. Section 4 describes the derivation of the positions,
velocities and uncertainties, including a short study on possible systematic
effects. Section 3.1 maps the tracers into configuration space to show how
they are distributed in relationship to each other. Section 5 focuses on the
mapping the kinematics of the OB and RGB stars, and what information they
contain about the bar and spiral arms. Section 6 discusses our results in
context with other works and highlights the caveats and short-comings that
should be addressed in the future, followed by Section 7 summarising our
conclusions.

##  2 Selection of tracers

To map the asymmetry of the Galactic disc with Gaia, we select both young and
old stellar populations: the former as the traditional tracer for spiral
structure used at optical wavelengths where the surface brightness of disk
galaxies, like our Milky Way (MW), are dominated by star formation products;
the later as being the component that determines the mass distribution. The
latest Gaia DR3 release for the first time allows us to select samples based
on stellar parameters, which we will use to select a sample of OB stars and
giants. The subset of sources with line-of-sight velocities (Katz et al.,
2022) will have full 6 dimensional phase space information, allowing us to map
the velocity field for these samples. In addition we also investigate the
distribution of open clusters and Classical Cepheids (DCEPs), both for which
we can derive excellent distances as well as ages. In this section we describe
how we construct each of these samples and how distances are derived for each.

###  2.1 Clusters

We used the list of probable members of the 2017 clusters studied by Cantat-
Gaudin et al. (2020) with DR2 data. We obtained the DR3 source_id of those
sources via the available cross-match table, and removed stars whose EDR3
astrometry reveals them to be outliers by more than 3-$\sigma$. This list of
members was supplemented with the stars from 628 clusters recently discovered
by Castro-Ginard et al. (2022) in the EDR3 catalogue, and the members found by
Tarricq et al. (2022) in the outskirts of 389 nearby clusters. Most of these
clusters have associated ages estimated with an artificial neural network
applied to the Gaia DR2 data (for those in Cantat-Gaudin et al., 2020) or EDR3
photometry, and 988 of them are younger than 100 Myr.

The median astrometric parameters (parallax and proper motion) were computed
for all clusters and are provided in Table 1. Before calculating the median
parallax, the individual parallaxes were corrected following the recipe
provided by Lindegren et al. (2021). Given the statistical precision obtained
from using a large number of (corrected) parallaxes, we estimate distances by
inverting the median cluster parallax. The uncertainty on the bulk cluster
astrometry is estimated as the quadratic sum of the statistical uncertainty
and the uncertainty due to small-scale correlations, taken as 10 $\mu$as in
parallax and 25 $\mu$as yr-1 in proper motion (Vasiliev & Baumgardt, 2021).

We also computed the median line-of-sight velocity222See footnote 1 for the
2162 clusters in which at least one member has a DR3 line-of-sight velocity.
Out of the 988 clusters younger than 100 Myr, 698 have line-of-sight
velocities from DR3. The bulk line-of-sight velocities were computed from an
average of 48 members per cluster, although this number varies significantly
with age and distance (Fig. 1). For comparison, in Gaia DR2 the line-of-sight
velocities were only available for an average of 10 stars per cluster. We
estimate the line-of-sight velocity uncertainty as:

$\sigma_{los,cluster}=\sqrt{\frac{1}{\sum_{i=1}^{N}\left(\frac{1}{\sigma_{v_{\mathrm{los},i}}}\right)^{2}}+0.5^{2}}$
(1)

where $\sigma_{v_{\mathrm{los},i}}$ are the nominal line-of-sight velocity
uncertainties of the $N$ cluster members, and 0.5 km s-1 is a conservative
estimate of the line-of-sight velocity accuracy estimated in DR2 (Deepak &
Reddy, 2018; Katz et al., 2019). Although future investigations of the DR3
line-of-sight velocities are likely to show improved systematics with respect
to DR2, this conservative choice has no significant impact on the results of
this paper.

Figure 1: Number of cluster members with available line-of-sight velocities in
Gaia DR3 as a function of cluster distance and age.  Table 1:  Summary of mean
parameters for the cluster sample. The full table is available as an
electronic table via CDS.

cluster | $\ell$ | $b$ | $N$ | $\mu_{\alpha}*$ | $\sigma_{\mu_{\alpha}*}$ | $\mu_{\delta}$ | $\sigma_{\mu_{\delta}}$ | $\varpi$ | $\sigma_{\varpi}$ | $v_{\mathrm{los}}$ | $\sigma_{v_{\mathrm{los}}}$ | $N_{v_{\mathrm{los}}}$ | $\log t$ | $n_{0}$
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
| [deg] | [deg] |  |  [mas yr-1] |  [mas yr-1] |  [mas yr-1] |  [mas yr-1] | [mas] | [mas] |  [km s-1] |  [km s-1] |  |  |
ASCC 10 | 155.558 | -17.801 | 147 | -1.840 | 0.197 | -1.396 | 0.157 | 1.530 | 0.047 | -17.07 | 0.54 | 84 | 8.42 | 5
ASCC 101 | 67.978 | 11.608 | 106 | 0.940 | 0.228 | 1.200 | 0.250 | 2.548 | 0.052 | -19.04 | 0.53 | 56 | 8.69 | 1
ASCC 105 | 62.860 | 2.025 | 148 | 1.429 | 0.147 | -1.626 | 0.147 | 1.817 | 0.039 | -16.83 | 0.62 | 71 | 7.87 | 3
…
UBC 1628 | 319.829 | -4.227 | 10 | -2.554 | 0.032 | -2.840 | 0.043 | 0.552 | 0.013 | -44.87 | 18.35 | 1 | 8.47 | 1

333The full table is available as an electronic table via CDS. $N$: number of
probable members kept to compute astrometric parameters.
$\sigma_{\mu_{\alpha}*}$, $\sigma_{\mu_{\delta}}$, and $\sigma_{\varpi}$ are
the observed standard deviations of the members. $\sigma_{v_{\mathrm{los}}}$:
computed line-of-sight velocity uncertainty. $N_{v_{\mathrm{los}}}$: number of
members used to compute the cluster line-of-sight velocity. $n_{0}$: number of
members with an absolute magnitude brighter than 0.

###  2.2 Classical Cepheids

The sample of DCEPs adopted in this work is mainly based on the list of
sources in the vari_cepheid table which is published in DR3 as a result of the
processing by the Specific Objects Study (SOS) pipeline specifically designed
to validate and fully characterise DCEPs and RR Lyrae stars observed by Gaia
(hereafter referred to as SOS Cep&RRL pipeline) (see Clementini et al., 2016,
2019, 2022; Ripepi et al., 2022b, for full details). This sample is composed
of 3286 DCEPs belonging to the MW, of which 1995 pulsate in the fundamental
mode (F), 1097 in the first overtone (1O) and 194 are multi mode (MULTI)
pulsators. For these DCEPs, the SOS Cep&RRL pipeline provides pulsation
periods, intensity-averaged magnitudes, peak-to-peak amplitudes, Fourier
parameters and other quantities whose full description can be found in Ripepi
et al. (2022b). The DR3 DCEPs sample was complemented with DCEPs taken by the
recent compilations of Pietrukowicz et al. (2021) and Inno et al. (2021).After
removing overlaps with the DR3 DCEPs sample,444We also neglected two
additional multi-mode DCEPs pulsating in the second and third mode. and
retaining only objects with a valid measurements of the mean magnitude in all
three Gaia passbands and reliable proper motions, we find an additional 564
objects from Pietrukowicz et al. (2021) and 43 objects from Inno et al.
(2021), with 27 objects in common. For these later we adopt the
classifications and periods from Pietrukowicz et al. (2021), giving a total of
an additional 580 DCEPs from the literature. However, an additional 81
literature DCEPs were removed as suspect binaries from their position in the
Period-Wesenheit diagram (see next section). We therefore are left with 486
and 13 DCEPs from the Pietrukowicz et al. (2021) and Inno et al. (2021)
catalogues, respectively. The total sample is therefore composed of 3785
DCEPs. However, as we shall see below, we will further clip this sample.

####  2.2.1 Distances and cleaning of the sample.

An estimation of the distance to each DCEP in our sample was obtained directly
from the definition of distance modulus $w-W$=$-5+5\log D$, where $w$ and $W$
are the apparent and absolute Wesenheit magnitudes555The Wesenheit magnitudes
are reddening-free by construction, assuming that the extinction law is known
(Madore, 1982), respectively. The coefficient of the $w$ magnitude has been
derived in the Gaia bands on an empirical basis by Ripepi et al. (2019) and is
defined as $w=G-1.90\times(G_{BP}-G_{RP})$. The absolute Wesenheit magnitude
$W$ was calculated using the period-Wesenheit-metallicity ($PWZ$) relation
recently published by Ripepi et al. (2022a):

$\displaystyle W=(-5.988\pm 0.018)-(3.176\pm 0.044)(\log P-1.0)$ (2)
$\displaystyle-(0.520\pm 0.090){\rm[Fe/H]}$

To calculate the value of $w$ for the DCEPs in our sample we used different
Gaia $(G,G_{BP},G_{RP})$ magnitude data sets. For the DCEPs in the DR3
vari_cepheid table, the SOS Cep&RRL pipeline provides intensity-averaged
magnitudes in the three Gaia bands, that is, magnitudes which are calculated
as to resemble as much as possible the magnitude that the DCEPs would have if
they were non-variable stars. Instead, for the 499 literature DCEPs that are
not in the DR3 vari_cepheid table, we only have mean magnitudes estimated in
the Gaia photometric processing (see Riello et al., 2021, for details) and
available for all sources in the Gaia source catalogue. However, using mean
magnitudes in the Gaia source catalogue for the literature DCEPs sample does
not bias our results because it was found that the difference between $w$
magnitudes calculated in the two different ways is of only $-0.01\pm$0.03 mag
(Ripepi et al., 2022a). Obtaining reliable values of $w$ is possible only for
sources with reliable values of the $G$, $G_{BP}$ and $G_{RP}$ magnitudes.
Objects with magnitude close to or fainter than $G=20$ mag are expected to
have very poor $G_{BP}$ photometry, thus resulting in unreliable mean $G_{BP}$
magnitudes. We discuss how to clean the sample for this effect at the end of
this section.

The other ingredient needed to calculate the distance to each DCEP is $W$, for
which we need the period and iron abundance of each pulsator. The periods were
taken from the vari_cepheid table or the literature, while the ${\rm[Fe/H]}$
values are more difficult to obtain. One of the products of Gaia DR3 are iron
abundances obtained with the Radial Velocity Spectrometer (RVS) on board Gaia
(Gaia Collaboration et al., 2022c), which are available in the
astrophysical_parameters table published with DR3. Here we found spectroscopic
values of ${\rm[Fe/H]}$ and their uncertainties for 949 DCEPs of the Gaia DR3
sample and for 27 of the literature DCEPs. An estimate of the iron abundance
for the remaining DCEPs was obtained adopting the metallicity gradient of the
MW disc as measured by Ripepi et al. (2022a): ${\rm[Fe/H]}=(-0.0527\pm
0.0022)R+(0.511\pm 0.022)$ with rms=0.11 dex (this estimate is in agreement
with many other literature estimations, see Ripepi et al., 2022a, for
details). Even if not particularly precise, the iron abundances obtained in
this way allow us to use Eq. 2 to derive reliable distances. According to the
$PWZ$ relation in Eq. 2, the impact on the distance to a DCEP produced by an
uncertainty of 0.11 dex in metallicity is $\sim$2.5% and, even considering a
conservative uncertainty of 0.2 dex in [Fe/H], the uncertainty on the distance
would be a still tolerable 5%.

Having estimated both the values of $w$ and $W$ as explained above, it is
straightforward to calculate the distance to each DCEP in our sample and its
uncertainty. This was calculated by error propagation:
$\sigma_{d}=0.4605\sigma_{\mu}d$, where $\sigma_{\mu}$ is the uncertainty on
the distance modulus, calculated by adding in quadrature the uncertainties on
$w$ and $W$, which, in turn, were estimated by propagating the uncertainties
on the Gaia magnitudes for $w$, and for $W$ the uncertainties in the
coefficients of Eq. 2, and the uncertainty on the iron abundance (the
uncertainty on the periods are negligible).

An analysis of the derived distances and relative uncertainties revealed that
many faint objects had unreliable distances and/or very large uncertainties,
due to the large photometric uncertainties, especially in the $G_{BP}$ band.