Gaia
Early Data Release 3
Gaia Collaboration, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, C. Babusiaux, M. Biermann, O. L. Creevey, D. W. Evans, L. Eyer, A. Hutton, F. Jansen, C. Jordi, S. A. Klioner, U. Lammers, L. Lindegren, X. Luri, F. Mignard, C. Panem, D. Pourbaix, S. Randich, P. Sartoretti, C. Soubiran, N. A. Walton, F. Arenou, C. A. L. Bailer-Jones, U. Bastian, M. Cropper, R. Drimmel, D. Katz, M. G. Lattanzi, F. van Leeuwen, J. Bakker, C. Cacciari, J. Castañeda, F. De Angeli, C. Ducourant, C. Fabricius, M. Fouesneau, Y. Frémat, R. Guerra, A. Guerrier, J. Guiraud, A. Jean-Antoine Piccolo, E. Masana, R. Messineo, N. Mowlavi, C. Nicolas, K. Nienartowicz, F. Pailler, P. Panuzzo, F. Riclet, W. Roux, G. M. Seabroke, R. Sordo, P. Tanga, F. Thévenin, G. Gracia-Abril, J. Portell, D. Teyssier, M. Altmann, R. Andrae, I. Bellas-Velidis, K. Benson, J. Berthier, R. Blomme, E. Brugaletta, P. W. Burgess, G. Busso, B. Carry, A. Cellino, N. Cheek, G. Clementini, Y. Damerdji, M. Davidson, L. Delchambre, A. Dell’Oro, J. Fernández-Hernández, L. Galluccio, P. García-Lario, M. Garcia-Reinaldos, J. González-Núñez, E. Gosset, R. Haigron, J.-L. Halbwachs, N. C. Hambly, D. L. Harrison, D. Hatzidimitriou, U. Heiter, J. Hernández, D. Hestroffer, S. T. Hodgkin, B. Holl, K. Janßen, G. Jevardat de Fombelle, S. Jordan, A. Krone-Martins, A. C. Lanzafame, W. Löffler, A. Lorca, M. Manteiga, O. Marchal, P. M. Marrese, A. Moitinho, A. Mora, K. Muinonen, P. Osborne, E. Pancino, T. Pauwels, J.-M. Petit, A. Recio-Blanco, P. J. Richards, M. Riello, L. Rimoldini, A. C. Robin, T. Roegiers, J. Rybizki, L. M. Sarro, C. Siopis, M. Smith, A. Sozzetti, A. Ulla, E. Utrilla, M. van Leeuwen, W. van Reeven, U. Abbas, A. Abreu Aramburu, S. Accart, C. Aerts, J. J. Aguado, M. Ajaj, G. Altavilla, M. A. Álvarez, J. Álvarez Cid-Fuentes, J. Alves, R. I. Anderson, E. Anglada Varela, T. Antoja, M. Audard, D. Baines, S. G. Baker, L. Balaguer-Núñez, E. Balbinot, Z. Balog, C. Barache, D. Barbato, M. Barros, M. A. Barstow, S. Bartolomé, J.-L. Bassilana, N. Bauchet, A. Baudesson-Stella, U. Becciani, M. Bellazzini, M. Bernet, S. Bertone, L. Bianchi, S. Blanco-Cuaresma, T. Boch, A. Bombrun, D. Bossini, S. Bouquillon, A. Bragaglia, L. Bramante, E. Breedt, A. Bressan, N. Brouillet, B. Bucciarelli, A. Burlacu, D. Busonero, A. G. Butkevich, R. Buzzi, E. Caffau, R. Cancelliere, H. Cánovas, T. Cantat-Gaudin, R. Carballo, T. Carlucci, M. I Carnerero, J. M. Carrasco, L. Casamiquela, M. Castellani, A. Castro-Ginard, P. Castro Sampol, L. Chaoul, P. Charlot, L. Chemin, A. Chiavassa, M.-R. L. Cioni, G. Comoretto, W. J. Cooper, T. Cornez, S. Cowell, F. Crifo, M. Crosta, C. Crowley, C. Dafonte, A. Dapergolas, M. David, P. David, P. de Laverny, F. De Luise, R. De March, J. De Ridder, R. de Souza, P. de Teodoro, A. de Torres, E. F. del Peloso, E. del Pozo, M. Delbo, A. Delgado, H. E. Delgado, J.-B. Delisle, P. Di Matteo, S. Diakite, C. Diener, E. Distefano, C. Dolding, D. Eappachen, B. Edvardsson, H. Enke, P. Esquej, C. Fabre, M. Fabrizio, S. Faigler, G. Fedorets, P. Fernique, A. Fienga, F. Figueras, C. Fouron, F. Fragkoudi, E. Fraile, F. Franke, M. Gai, D. Garabato, A. Garcia-Gutierrez, M. García-Torres, A. Garofalo, P. Gavras, E. Gerlach, R. Geyer, P. Giacobbe, G. Gilmore, S. Girona, G. Giuffrida, R. Gomel, A. Gomez, I. Gonzalez-Santamaria, J. J. González-Vidal, M. Granvik, R. Gutiérrez-Sánchez, L. P. Guy, M. Hauser, M. Haywood, A. Helmi, S. L. Hidalgo, T. Hilger, N. Hładczuk, D. Hobbs, G. Holland, H. E. Huckle, G. Jasniewicz, P. G. Jonker, J. Juaristi Campillo, F. Julbe, L. Karbevska, P. Kervella, S. Khanna, A. Kochoska, M. Kontizas, G. Kordopatis, A. J. Korn, Z. Kostrzewa-Rutkowska, K. Kruszyńska, S. Lambert, A. F. Lanza, Y. Lasne, J.-F. Le Campion, Y. Le Fustec, Y. Lebreton, T. Lebzelter, S. Leccia, N. Leclerc, I. Lecoeur-Taibi, S. Liao, E. Licata, E. P. Lindstrøm, T. A. Lister, E. Livanou, A. Lobel, P. Madrero Pardo, S. Managau, R. G. Mann, J. M. Marchant, M. Marconi, M. M. S. Marcos Santos, S. Marinoni, F. Marocco, D. J. Marshall, L. Martin Polo, J. M. Martín-Fleitas, A. Masip, D. Massari, A. Mastrobuono-Battisti, T. Mazeh, P. J. McMillan, S. Messina, D. Michalik, N. R. Millar, A. Mints, D. Molina, R. Molinaro, L. Molnár, P. Montegriffo, R. Mor, R. Morbidelli, T. Morel, D. Morris, A. F. Mulone, D. Munoz, T. Muraveva, C. P. Murphy, I. Musella, L. Noval, C. Ordénovic, G. Orrù, J. Osinde, C. Pagani, I. Pagano, L. Palaversa, P. A. Palicio, A. Panahi, M. Pawlak, X. Peñalosa Esteller, A. Penttilä, A. M. Piersimoni, F.-X. Pineau, E. Plachy, G. Plum, E. Poggio, E. Poretti, E. Poujoulet, A. Prša, L. Pulone, E. Racero, S. Ragaini, M. Rainer, C. M. Raiteri, N. Rambaux, P. Ramos, M. Ramos-Lerate, P. Re Fiorentin, S. Regibo, C. Reylé, V. Ripepi, A. Riva, G. Rixon, N. Robichon, C. Robin, M. Roelens, L. Rohrbasser, M. Romero-Gómez, N. Rowell, F. Royer, K. A. Rybicki, G. Sadowski, A. Sagristà Sellés, J. Sahlmann, J. Salgado, E. Salguero, N. Samaras, V. Sanchez Gimenez, N. Sanna, R. Santoveña, M. Sarasso, M. Schultheis, E. Sciacca, M. Segol, J. C. Segovia, D. Ségransan, D. Semeux, S. Shahaf, H. I. Siddiqui, A. Siebert, L. Siltala, E. Slezak, R. L. Smart, E. Solano, F. Solitro, D. Souami, J. Souchay, A. Spagna, F. Spoto, I. A. Steele, H. Steidelmüller, C. A. Stephenson, M. Süveges, L. Szabados, E. Szegedi-Elek, F. Taris, G. Tauran, M. B. Taylor, R. Teixeira, W. Thuillot, N. Tonello, F. Torra, J. Torra, C. Turon, N. Unger, M. Vaillant, E. van Dillen, O. Vanel, A. Vecchiato, Y. Viala, D. Vicente, S. Voutsinas, M. Weiler, T. Wevers, Ł. Wyrzykowski, A. Yoldas, P. Yvard, H. Zhao, J. Zorec, S. Zucker, C. Zurbach, T. Zwitter
2021Published
3.8KCitations
0References
journal articleType
Abstract
Context.
We present the early installment of the third
Gaia
data release,
Gaia
EDR3, consisting of astrometry and photometry for 1.8 billion sources brighter than magnitude 21, complemented with the list of radial velocities from
Gaia
DR2.
Aims.
A summary of the contents of
Gaia
EDR3 is presented, accompanied by a discussion on the differences with respect to
Gaia
DR2 and an overview of the main limitations which are present in the survey. Recommendations are made on the responsible use of
Gaia
EDR3 results.
Methods.
The raw data collected with the
Gaia
instruments during the first 34 months of the mission have been processed by the
Gaia
Data Processing and Analysis Consortium and turned into this early third data release, which represents a major advance with respect to
Gaia
DR2 in terms of astrometric and photometric precision, accuracy, and homogeneity.
Results. Gaia
EDR3 contains celestial positions and the apparent brightness in
G
for approximately 1.8 billion sources. For 1.5 billion of those sources, parallaxes, proper motions, and the (
G
BP
−
G
RP
) colour are also available. The passbands for
G
,
G
BP
, and
G
RP
are provided as part of the release. For ease of use, the 7 million radial velocities from
Gaia
DR2 are included in this release, after the removal of a small number of spurious values. New radial velocities will appear as part of
Gaia
DR3. Finally,
Gaia
EDR3 represents an updated materialisation of the celestial reference frame (CRF) in the optical, the
Gaia
-CRF3, which is based solely on extragalactic sources. The creation of the source list for
Gaia
EDR3 includes enhancements that make it more robust with respect to high proper motion stars, and the disturbing effects of spurious and partially resolved sources. The source list is largely the same as that for
Gaia
DR2, but it does feature new sources and there are some notable changes. The source list will not change for
Gaia
DR3.
Conclusions. Gaia
EDR3 represents a significant advance over
Gaia
DR2, with parallax precisions increased by 30 per cent, proper motion precisions increased by a factor of 2, and the systematic errors in the astrometry suppressed by 30–40% for the parallaxes and by a factor ~2.5 for the proper motions. The photometry also features increased precision, but above all much better homogeneity across colour, magnitude, and celestial position. A single passband for
G
,
G
BP
, and
G
RP
is valid over the entire magnitude and colour range, with no systematics above the 1% level
Journal: Astronomy & Astrophysics
Publisher: EDP Sciences
Citations are the number of DOI-registered works in Crossref that cite this paper; references are how many works it cites. Full text is on the publisher site via the DOI link.