GaiaEarly Data Release 3

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 28 Apr 2021Embargo end date: 01 Jan 2021 Spain, Italy, Netherlands, Belgium, Netherlands, Spain, Italy, Italy, Belgium, France, Spain, Netherlands, Spain, Netherlands, Denmark, Belgium, Greece, Austria, Poland, Switzerland, Italy, United States, Hungary, Spain Publisher:EDP SciencesJournal:Astronomy & Astrophysics, volume 649, page A8 (issn: 0004-6361, eissn: 1432-0746,

Copyright policy )Funded by:UKRI | UK Gaia CU9: Delivering G..., EC | MAMSIE, FCT | MORPHOLOGY WITH THE GAIA ... +20 projects

Authors: Gaia Collaboration; Antoja, T.; McMillan, P.; Kordopatis, G.; Ramos, P.; Helmi, A.; Balbinot, E.; +193 Authors

Gaia Collaboration; Antoja, T.; McMillan, P.; Kordopatis, G.; Ramos, P.; Helmi, A.; Balbinot, E.; Cantat-Gaudin, T.; Chemin, L.; Figueras, F.; Jordi, C.; Khanna, S.; Romero-Gomez, M.; Seabroke, G.; 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.; Drimmel, R.; Katz, D.; Lattanzi, M. G.; van Leeuwen, F.; Bakker, J.; Castañeda, J.; De Angeli, F.; Ducourant, C.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Guerra, R.; Guerrier, A.; Guiraud, J.; Piccolo, A. Jean-Antoine; Masana, E.; Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet, F.; Roux, W.; Sordo, R.; Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.; Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.; Delchambre, L.; Dell'Oro, A.; Fernández-Hernández, J.; Galluccio, L.; García-Lario, P.; Garcia-Reinaldos, M.; González-Núñez, J.; Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hatzidimitriou, D.; Heiter, U.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; de Fombelle, G. Jevardat; Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Lorca, A.; Manteiga, M.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Mora, A.; Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Richards, P. J.; Riello, M.; Rimoldini, L.; Robin, A. C.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.; Abbas, U.; Aramburu, A. Abreu; Accart, S.; Aerts, C.; Aguado; Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Cid-Fuentes, J. Álvarez; Alves, J.; Anderson, J. J. R. I.; Varela, E. Anglada; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé, S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.; Becciani, U.; Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.; Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere, R.; Cánovas, H.; Carballo, R.; Carlucci, T.; Carnerero, M. I; Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.; Sampol, P. Castro; Chaoul, L.; Charlot, P.; Chiavassa, A.; Cioni, M. -R. L.; Comoretto, G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Crosta, M.;

doi: 10.1051/0004-6361/202039714 , 10.48550/arxiv.2101.05811

arXiv: 2101.05811

handle: 2445/182889 , 2183/28407 , 10902/23741 , 20.500.12666/583 , https://repository.ubn.ru.nl/handle/2066/233672 , 11370/1c8dce82-d454-40a8-b667-3015eeac1906 , 20.500.14243/515878 , 10261/256794 , 2268/296982 , 21.11116/0000-0008-F47D-9 , 21.11116/0000-0008-F47F-7 , 10067/1790760151162165141 , 11577/3538002 , 20.500.11769/523760 , 1887/3256331 , 20.500.11767/127145

GaiaEarly Data Release 3

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Abstract

Aims.We aim to demonstrate the scientific potential of theGaiaEarly 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, theGaiaastrometric 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 withGaia-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 theGaiadata 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 theGaiaEDR3, 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.

Countries

Spain, Italy, Netherlands, Belgium, Netherlands, Spain, Italy, Italy, Belgium, France, Spain, Netherlands, Spain, Netherlands, Denmark, Belgium, Greece, Austria, Poland, Switzerland, Italy, United States, Hungary, Spain

Related Organizations

Spanish National Research Council
Spain
University of Antofagasta
Chile
University of Cambridge
United Kingdom
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
United Kingdom
Institut de Physique de Rennes
France

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Keywords

SOLAR NEIGHBORHOOD, Aérospatiale, astronomie & astrophysique, 103003 Astronomie, Astronomy, SAGITTARIUS DWARF GALAXY, [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph], Astrophysics / csillagászat, 103038 Space exploration, QB Astronomy, 103004 Astrophysics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Astrophysics of Galaxies, Physics, Astrometry, 103004 Astrophysik, Gelexy: kinematics and dynamics, distances [Stars], Kinematics and Dynamics, 520, Open clusters and asssociations: individual: Berkeley 29, Galaxy: disk; Galaxy: halo; Galaxy: kinematics and dynamics; Open clusters and associations: individual: Berkeley 29; Open clusters and associations: individual: Saurer 1; Stars: distances, open clusters and, Disk, individual: Saurer 1 [Open clusters and associations], Physical Sciences, MILKY-WAY, kinematics and dynamics [Gelexy], open clusters and associations: individual: Berkeley 29, Galaxy: kinematics and dynamics, disk [Galaxy], 5101 Astronomical sciences, individual: Berkeley 29 [open clusters and associations], Berkeley 29, Astrophysics -, EXPLORING HALO SUBSTRUCTURE, LOCAL KINEMATICS, Astrometria, Physique, chimie, mathématiques & sciences de la terre, FOS: Physical sciences, Open Clusters and Associations, Individual, Astronomy & Astrophysics, 103038 Weltraumforschung, 5109 Space sciences, Galaxy: disk, Open clusters and associations: individual: Saurer 1, Halo, 103003 Astronomy, Physical, chemical, mathematical & earth Sciences, 5107 Particle and high energy physics, individual: Berkeley 29 [Open clusters and asssociations], 0201 Astronomical and Space Sciences, Open clusters and associations: individual: Berkeley 29, distances [stars], halo [Galaxy], Stars: distances, Galaxy: disk â€“ Galaxy: halo â€“ stars: distances â€“ open clusters and associations: individual: Saurer 1 â€“ open clusters and associations: individual: Berkeley 29 â€“ Galaxy: kinematics and dynamics, Saurer 1, Science & Technology, TRIGONOMETRIC PARALLAXES, Galaxy: disk; Galaxy: halo; stars: distances; open clusters and associations: individual: Saurer 1; open clusters and associations: individual: Berkeley 29; Galaxy: kinematics and dynamics; Astrophysics - Astrophysics of Galaxies, kinematics and dynamics [Galaxy], CANIS-MAJOR, Stars, Astrophysics - Astrophysics of Galaxies, individual: Saurer 1 [open clusters and associations], associations: individual: Saurer 1, Galaxy: halo, Estels, Distances, Galaxy, OLD OPEN CLUSTERS, asztrofizika, QC Physics / fizika, Astrophysics of Galaxies (astro-ph.GA), open clusters and associations:, individual: Berkeley 29, individual: Berkeley 29 [Open clusters and associations], Space science, astronomy & astrophysics, stars: distances, open clusters and associations: individual: Saurer 1, SKY SURVEY, STELLAR STRUCTURE

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