Gaia Early Data Release 3 The Galactic anticentre

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Gaia Early Data Release 3 The Galactic anticentre. / Antoja, T.; McMillan, P. J.; Kordopatis, G.; Ramos, P.; Helmi, A.; Balbinot, E.; Cantat-Gaudin, T.; Chemin, L.; Figueras, F.; Jordi, C.; Khanna, S.; Romero-Gomez, M.; Seabroke, G. M.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer, L.; Hutton, A.; Jansen, F.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones, C. A. L.; Bastian, U.; Cropper, M.; Fabricius, C.; Smith, M.; Anderson, R. I.; Gerlach, E.; Hauser, M.; Lindstrom, H. E. P.; Morris, D.; Pagani, C.; Siebert, A.; Stephenson, C. A.; Zhao, H.; Gaia Collaboration.

I: Astronomy & Astrophysics, Bind 649, A8, 28.04.2021.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Antoja, T, McMillan, PJ, Kordopatis, G, Ramos, P, Helmi, A, Balbinot, E, Cantat-Gaudin, T, Chemin, L, Figueras, F, Jordi, C, Khanna, S, Romero-Gomez, M, Seabroke, GM, Brown, AGA, Vallenari, A, Prusti, T, de Bruijne, JHJ, Babusiaux, C, Biermann, M, Creevey, OL, Evans, DW, Eyer, L, Hutton, A, Jansen, F, Klioner, SA, Lammers, U, Lindegren, L, Luri, X, Mignard, F, Panem, C, Pourbaix, D, Randich, S, Sartoretti, P, Soubiran, C, Walton, NA, Arenou, F, Bailer-Jones, CAL, Bastian, U, Cropper, M, Fabricius, C, Smith, M, Anderson, RI, Gerlach, E, Hauser, M, Lindstrom, HEP, Morris, D, Pagani, C, Siebert, A, Stephenson, CA, Zhao, H & Gaia Collaboration 2021, 'Gaia Early Data Release 3 The Galactic anticentre', Astronomy & Astrophysics, bind 649, A8. https://doi.org/10.1051/0004-6361/202039714

APA

Antoja, T., McMillan, P. J., Kordopatis, G., Ramos, P., Helmi, A., Balbinot, E., Cantat-Gaudin, T., Chemin, L., Figueras, F., Jordi, C., Khanna, S., Romero-Gomez, M., Seabroke, G. M., Brown, A. G. A., Vallenari, A., Prusti, T., de Bruijne, J. H. J., Babusiaux, C., Biermann, M., ... Gaia Collaboration (2021). Gaia Early Data Release 3 The Galactic anticentre. Astronomy & Astrophysics, 649, [A8]. https://doi.org/10.1051/0004-6361/202039714

Vancouver

Antoja T, McMillan PJ, Kordopatis G, Ramos P, Helmi A, Balbinot E o.a. Gaia Early Data Release 3 The Galactic anticentre. Astronomy & Astrophysics. 2021 apr. 28;649. A8. https://doi.org/10.1051/0004-6361/202039714

Author

Antoja, T. ; McMillan, P. J. ; Kordopatis, G. ; Ramos, P. ; Helmi, A. ; Balbinot, E. ; Cantat-Gaudin, T. ; Chemin, L. ; Figueras, F. ; Jordi, C. ; Khanna, S. ; Romero-Gomez, M. ; Seabroke, G. M. ; Brown, A. G. A. ; Vallenari, A. ; Prusti, T. ; de Bruijne, J. H. J. ; Babusiaux, C. ; Biermann, M. ; Creevey, O. L. ; Evans, D. W. ; Eyer, L. ; Hutton, A. ; Jansen, F. ; Klioner, S. A. ; Lammers, U. ; Lindegren, L. ; Luri, X. ; Mignard, F. ; Panem, C. ; Pourbaix, D. ; Randich, S. ; Sartoretti, P. ; Soubiran, C. ; Walton, N. A. ; Arenou, F. ; Bailer-Jones, C. A. L. ; Bastian, U. ; Cropper, M. ; Fabricius, C. ; Smith, M. ; Anderson, R. I. ; Gerlach, E. ; Hauser, M. ; Lindstrom, H. E. P. ; Morris, D. ; Pagani, C. ; Siebert, A. ; Stephenson, C. A. ; Zhao, H. ; Gaia Collaboration. / Gaia Early Data Release 3 The Galactic anticentre. I: Astronomy & Astrophysics. 2021 ; Bind 649.

Bibtex

@article{611c2bfc066e43a28eabdc1b7ec6023f,
title = "Gaia Early Data Release 3 The Galactic anticentre",
abstract = "Aims. We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of different aspects of the Milky Way structure and evolution and we provide, at the same time, a description of several practical aspects of the data and examples of their usage.Methods. We used astrometric positions, proper motions, parallaxes, and photometry from EDR3 to select different populations and components and to calculate the distances and velocities in the direction of the anticentre. In this direction, the Gaia astrometric data alone enable the calculation of the vertical and azimuthal velocities; also, the extinction is relatively low compared to other directions in the Galactic plane. We then explore the disturbances of the current disc, the spatial and kinematical distributions of early accreted versus in situ stars, the structures in the outer parts of the disc, and the orbits of open clusters Berkeley 29 and Saurer 1.Results. With the improved astrometry and photometry of EDR3, we find that: (i) the dynamics of the Galactic disc are very complex with oscillations in the median rotation and vertical velocities as a function of radius, vertical asymmetries, and new correlations, including a bimodality with disc stars with large angular momentum moving vertically upwards from below the plane, and disc stars with slightly lower angular momentum moving preferentially downwards; (ii) we resolve the kinematic substructure (diagonal ridges) in the outer parts of the disc for the first time; (iii) the red sequence that has been associated with the proto-Galactic disc that was present at the time of the merger with Gaia-Enceladus-Sausage is currently radially concentrated up to around 14 kpc, while the blue sequence that has been associated with debris of the satellite extends beyond that; (iv) there are density structures in the outer disc, both above and below the plane, most probably related to Monoceros, the Anticentre Stream, and TriAnd, for which the Gaia data allow an exhaustive selection of candidate member stars and dynamical study; and (v) the open clusters Berkeley 29 and Saurer 1, despite being located at large distances from the Galactic centre, are on nearly circular disc-like orbits.Conclusions. Even with our simple preliminary exploration of the Gaia EDR3, we demonstrate how, once again, these data from the European Space Agency are crucial for our understanding of the different pieces of our Galaxy and their connection to its global structure and history.",
keywords = "Galaxy: disk, Galaxy: halo, stars: distances, open clusters and associations: individual: Saurer 1, open clusters and associations: individual: Berkeley 29, Galaxy: kinematics and dynamics, OLD OPEN CLUSTERS, SAGITTARIUS DWARF GALAXY, EXPLORING HALO SUBSTRUCTURE, MILKY-WAY, CANIS-MAJOR, SOLAR NEIGHBORHOOD, SKY SURVEY, TRIGONOMETRIC PARALLAXES, STELLAR STRUCTURE, LOCAL KINEMATICS",
author = "T. Antoja and McMillan, {P. J.} and G. Kordopatis and P. Ramos and A. Helmi and E. Balbinot and T. Cantat-Gaudin and L. Chemin and F. Figueras and C. Jordi and S. Khanna and M. Romero-Gomez and Seabroke, {G. M.} and Brown, {A. G. A.} and A. Vallenari and T. Prusti and {de Bruijne}, {J. H. J.} and C. Babusiaux and M. Biermann and Creevey, {O. L.} and Evans, {D. W.} and L. Eyer and A. Hutton and F. Jansen and Klioner, {S. A.} and U. Lammers and L. Lindegren and X. Luri and F. Mignard and C. Panem and D. Pourbaix and S. Randich and P. Sartoretti and C. Soubiran and Walton, {N. A.} and F. Arenou and Bailer-Jones, {C. A. L.} and U. Bastian and M. Cropper and C. Fabricius and M. Smith and Anderson, {R. I.} and E. Gerlach and M. Hauser and Lindstrom, {H. E. P.} and D. Morris and C. Pagani and A. Siebert and Stephenson, {C. A.} and H. Zhao and {Gaia Collaboration}",
year = "2021",
month = apr,
day = "28",
doi = "10.1051/0004-6361/202039714",
language = "English",
volume = "649",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",

}

RIS

TY - JOUR

T1 - Gaia Early Data Release 3 The Galactic anticentre

AU - Antoja, T.

AU - McMillan, P. J.

AU - Kordopatis, G.

AU - Ramos, P.

AU - Helmi, A.

AU - Balbinot, E.

AU - Cantat-Gaudin, T.

AU - Chemin, L.

AU - Figueras, F.

AU - Jordi, C.

AU - Khanna, S.

AU - Romero-Gomez, M.

AU - Seabroke, G. M.

AU - Brown, A. G. A.

AU - Vallenari, A.

AU - Prusti, T.

AU - de Bruijne, J. H. J.

AU - Babusiaux, C.

AU - Biermann, M.

AU - Creevey, O. L.

AU - Evans, D. W.

AU - Eyer, L.

AU - Hutton, A.

AU - Jansen, F.

AU - Klioner, S. A.

AU - Lammers, U.

AU - Lindegren, L.

AU - Luri, X.

AU - Mignard, F.

AU - Panem, C.

AU - Pourbaix, D.

AU - Randich, S.

AU - Sartoretti, P.

AU - Soubiran, C.

AU - Walton, N. A.

AU - Arenou, F.

AU - Bailer-Jones, C. A. L.

AU - Bastian, U.

AU - Cropper, M.

AU - Fabricius, C.

AU - Smith, M.

AU - Anderson, R. I.

AU - Gerlach, E.

AU - Hauser, M.

AU - Lindstrom, H. E. P.

AU - Morris, D.

AU - Pagani, C.

AU - Siebert, A.

AU - Stephenson, C. A.

AU - Zhao, H.

AU - Gaia Collaboration

PY - 2021/4/28

Y1 - 2021/4/28

N2 - Aims. We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of different aspects of the Milky Way structure and evolution and we provide, at the same time, a description of several practical aspects of the data and examples of their usage.Methods. We used astrometric positions, proper motions, parallaxes, and photometry from EDR3 to select different populations and components and to calculate the distances and velocities in the direction of the anticentre. In this direction, the Gaia astrometric data alone enable the calculation of the vertical and azimuthal velocities; also, the extinction is relatively low compared to other directions in the Galactic plane. We then explore the disturbances of the current disc, the spatial and kinematical distributions of early accreted versus in situ stars, the structures in the outer parts of the disc, and the orbits of open clusters Berkeley 29 and Saurer 1.Results. With the improved astrometry and photometry of EDR3, we find that: (i) the dynamics of the Galactic disc are very complex with oscillations in the median rotation and vertical velocities as a function of radius, vertical asymmetries, and new correlations, including a bimodality with disc stars with large angular momentum moving vertically upwards from below the plane, and disc stars with slightly lower angular momentum moving preferentially downwards; (ii) we resolve the kinematic substructure (diagonal ridges) in the outer parts of the disc for the first time; (iii) the red sequence that has been associated with the proto-Galactic disc that was present at the time of the merger with Gaia-Enceladus-Sausage is currently radially concentrated up to around 14 kpc, while the blue sequence that has been associated with debris of the satellite extends beyond that; (iv) there are density structures in the outer disc, both above and below the plane, most probably related to Monoceros, the Anticentre Stream, and TriAnd, for which the Gaia data allow an exhaustive selection of candidate member stars and dynamical study; and (v) the open clusters Berkeley 29 and Saurer 1, despite being located at large distances from the Galactic centre, are on nearly circular disc-like orbits.Conclusions. Even with our simple preliminary exploration of the Gaia EDR3, we demonstrate how, once again, these data from the European Space Agency are crucial for our understanding of the different pieces of our Galaxy and their connection to its global structure and history.

AB - Aims. We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of different aspects of the Milky Way structure and evolution and we provide, at the same time, a description of several practical aspects of the data and examples of their usage.Methods. We used astrometric positions, proper motions, parallaxes, and photometry from EDR3 to select different populations and components and to calculate the distances and velocities in the direction of the anticentre. In this direction, the Gaia astrometric data alone enable the calculation of the vertical and azimuthal velocities; also, the extinction is relatively low compared to other directions in the Galactic plane. We then explore the disturbances of the current disc, the spatial and kinematical distributions of early accreted versus in situ stars, the structures in the outer parts of the disc, and the orbits of open clusters Berkeley 29 and Saurer 1.Results. With the improved astrometry and photometry of EDR3, we find that: (i) the dynamics of the Galactic disc are very complex with oscillations in the median rotation and vertical velocities as a function of radius, vertical asymmetries, and new correlations, including a bimodality with disc stars with large angular momentum moving vertically upwards from below the plane, and disc stars with slightly lower angular momentum moving preferentially downwards; (ii) we resolve the kinematic substructure (diagonal ridges) in the outer parts of the disc for the first time; (iii) the red sequence that has been associated with the proto-Galactic disc that was present at the time of the merger with Gaia-Enceladus-Sausage is currently radially concentrated up to around 14 kpc, while the blue sequence that has been associated with debris of the satellite extends beyond that; (iv) there are density structures in the outer disc, both above and below the plane, most probably related to Monoceros, the Anticentre Stream, and TriAnd, for which the Gaia data allow an exhaustive selection of candidate member stars and dynamical study; and (v) the open clusters Berkeley 29 and Saurer 1, despite being located at large distances from the Galactic centre, are on nearly circular disc-like orbits.Conclusions. Even with our simple preliminary exploration of the Gaia EDR3, we demonstrate how, once again, these data from the European Space Agency are crucial for our understanding of the different pieces of our Galaxy and their connection to its global structure and history.

KW - Galaxy: disk

KW - Galaxy: halo

KW - stars: distances

KW - open clusters and associations: individual: Saurer 1

KW - open clusters and associations: individual: Berkeley 29

KW - Galaxy: kinematics and dynamics

KW - OLD OPEN CLUSTERS

KW - SAGITTARIUS DWARF GALAXY

KW - EXPLORING HALO SUBSTRUCTURE

KW - MILKY-WAY

KW - CANIS-MAJOR

KW - SOLAR NEIGHBORHOOD

KW - SKY SURVEY

KW - TRIGONOMETRIC PARALLAXES

KW - STELLAR STRUCTURE

KW - LOCAL KINEMATICS

U2 - 10.1051/0004-6361/202039714

DO - 10.1051/0004-6361/202039714

M3 - Journal article

VL - 649

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A8

ER -

ID: 270620847