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Article
Report number arXiv:2208.00211
Title Gaia Data Release 3 - Summary of the content and survey properties
Author(s)

Vallenari, A. (Padua Observ.) ; Brown, A.G.A. (Leiden Observ.) ; Prusti, T. (ESTEC, Noordwijk) ; de Bruijne, J.H.J. (ESTEC, Noordwijk) ; Arenou, F. (GEPI, Meudon) ; Babusiaux, C. (IPAG ; GEPI, Meudon) ; Biermann, M. (Heidelberg, Astron. Rechen Inst.) ; Creevey, O.L. (OCA, Nice, Lab. Lagrange) ; Ducourant, C. (LAB, Bordeaux) ; Evans, D.W. (Cambridge U.) ; Eyer, L. (ISDC, Versoix) ; Guerra, R. (ESA, Madrid) ; Hutton, A. (ESA, Madrid) ; Jordi, C. (ICC, Barcelona U.) ; Klioner, S.A. (Lohrmann Observ.) ; Lammers, U.L. (ESA, Madrid) ; Lindegren, L. (Lund U.) ; Luri, X. (ICC, Barcelona U.) ; Mignard, F. (OCA, Nice, Lab. Lagrange) ; Panem, C. (CNES, Toulouse) ; Pourbaix, D. (Brussels U., IAA ; FNRS, Brussels) ; Randich, S. (Arcetri Observ.) ; Sartoretti, P. (GEPI, Meudon) ; Soubiran, C. (LAB, Bordeaux) ; Tanga, P. (OCA, Nice, Lab. Lagrange) ; Walton, N.A. (Cambridge U.) ; Bailer-Jones, C.A.L. (Heidelberg, Max Planck Inst. Astron.) ; Bastian, U. (Heidelberg, Astron. Rechen Inst.) ; Drimmel, R. (Turin Observ.) ; Jansen, F. (ESTEC, Noordwijk) ; Katz, D. (GEPI, Meudon) ; Lattanzi, M.G. (Turin Observ. ; INFN, Turin ; Turin U.) ; van Leeuwen, F. (Cambridge U.) ; Bakker, J. (ESA, Madrid) ; Cacciari, C. (Bologna Observ.) ; Castañeda, J. (ICC, Barcelona U.) ; De Angeli, F. (Cambridge U.) ; Fabricius, C. (ICC, Barcelona U.) ; Fouesneau, M. (Heidelberg, Max Planck Inst. Astron.) ; Frémat, Y. (Royal Observ. of Belgium) ; Galluccio, L. (OCA, Nice, Lab. Lagrange) ; Guerrier, A. (CNES, Toulouse) ; Heiter, U. (Uppsala U.) ; Masana, E. (ICC, Barcelona U.) ; Messineo, R. (ALENIA, Turin) ; Mowlavi, N. (ISDC, Versoix) ; Nicolas, C. (CNES, Toulouse) ; Nienartowicz, K. (Geneva U.) ; Pailler, F. (CNES, Toulouse) ; Panuzzo, P. (GEPI, Meudon) ; Riclet, F. (CNES, Toulouse) ; Roux, W. (CNES, Toulouse) ; Seabroke, G.M. (Mullard Space Sci. Lab.) ; Sordo, R. (Padua Observ.) ; Thévenin, F. (OCA, Nice, Lab. Lagrange) ; Gracia-Abril, G. (ESA, Madrid ; Heidelberg, Astron. Rechen Inst.) ; Portell, J. (ICC, Barcelona U.) ; Teyssier, D. (ESA, Madrid) ; Altmann, M. (Heidelberg, Astron. Rechen Inst. ; SYRTE, Paris) ; Andrae, R. (Heidelberg, Max Planck Inst. Astron.) ; Audard, M. (ISDC, Versoix ; Geneva U.) ; Bellas-Velidis, I. (Athens Observ.) ; Benson, K. (Mullard Space Sci. Lab.) ; Berthier, J. (IMCCE, Paris) ; Blomme, R. (Royal Observ. of Belgium) ; Burgess, P.W. (Cambridge U.) ; Busonero, D. (Turin Observ.) ; Busso, G. (Cambridge U.) ; Cánovas, H. (ESA, Madrid) ; Carry, B. (OCA, Nice, Lab. Lagrange) ; Cellino, A. (Turin Observ.) ; Cheek, N. (ESA, Madrid) ; Clementini, G. (Bologna Observ.) ; Damerdji, Y. (Liege U. ; CNAAG, Algiers) ; Davidson, M. (Edinburgh U., Inst. Astron.) ; de Teodoro, P. (ESA, Madrid) ; Campos, M. Nuñez (ESA, Madrid) ; Delchambre, L. (Liege U.) ; Dell'Oro, A. (Arcetri Observ.) ; Esquej, P. (ESA, Madrid) ; Fernández-Hernández, J. (ESA, Madrid) ; Fraile, E. (ESA, Madrid) ; Garabato, D. (Santiago de Compostela, IES) ; García-Lario, P. (ESA, Madrid) ; Gosset, E. (Liege U. ; FNRS, Brussels) ; Haigron, R. (GEPI, Meudon) ; Halbwachs, J.-L. (Strasbourg Observ.) ; Hambly, N.C. (Edinburgh U., Inst. Astron.) ; Harrison, D.L. (Cambridge U. ; Cambridge U., KICC) ; Hernández, J. (ESA, Madrid) ; Hestroffer, D. (IMCCE, Paris) ; Hodgkin, S.T. (Cambridge U.) ; Holl, B. (ISDC, Versoix ; Geneva U.) ; Janßen, K. (Potsdam, Astrophys. Inst.) ; de Fombelle, G. Jevardat (ISDC, Versoix) ; Jordan, S. (Heidelberg, Astron. Rechen Inst.) ; Krone-Martins, A. (Lisbon, CENTRA ; UC, Irvine (main)) ; Lanzafame, A.C. (Catania Astrophys. Observ. ; Catania U.) ; Löffler, W. (Heidelberg, Astron. Rechen Inst.) ; Marchal, O. (Strasbourg Observ.) ; Marrese, P.M. (Rome Observ. ; ASI, Rome) ; Moitinho, A. (Lisbon, CENTRA) ; Muinonen, K. (Helsinki U. ; Jyvaskyla U.) ; Osborne, P. (Cambridge U.) ; Pancino, E. (Arcetri Observ. ; Rome Observ. ; ASI, Rome) ; Pauwels, T. (Royal Observ. of Belgium) ; Recio-Blanco, A. (OCA, Nice, Lab. Lagrange) ; Reylé, C. (UTINAM, Besancon) ; Riello, M. (Cambridge U.) ; Rimoldini, L. (Geneva U.) ; Roegiers, T. (ESTEC, Noordwijk) ; Rybizki, J. (Heidelberg, Max Planck Inst. Astron.) ; Sarro, L.M. (Madrid, Natl. U. Distance Educ.) ; Siopis, C. (Brussels U., IAA) ; Smith, M. (Mullard Space Sci. Lab.) ; Sozzetti, A. (Turin Observ.) ; Utrilla, E. (ESA, Madrid) ; van Leeuwen, M. (Cambridge U.) ; Abbas, U. (Turin Observ.) ; Ábrahám, P. (Wigner RCP, Budapest ; Eotvos Lorand U., Budapest, Inst. Theor. Phys.) ; Aramburu, A. Abreu (ESA, Madrid) ; Aerts, C. (Leuven U. ; Nijmegen U., IMAPP ; Heidelberg, Max Planck Inst. Astron.) ; Aguado, J.J. (Madrid, Natl. U. Distance Educ.) ; Ajaj, M. (GEPI, Meudon) ; Aldea-Montero, F. (ESA, Madrid) ; Altavilla, G. (Rome Observ. ; ASI, Rome) ; Álvarez, M.A. (Santiago de Compostela, IES) ; Alves, J. (Vienna U.) ; Anders, F. (ICC, Barcelona U.) ; Anderson, R.I. (LASTRO Observ.) ; Varela, E. Anglada (ESA, Madrid) ; Antoja, T. (ICC, Barcelona U.) ; Baines, D. (ESA, Madrid) ; Baker, S.G. (Mullard Space Sci. Lab.) ; Balaguer-Núñez, L. (ICC, Barcelona U.) ; Balbinot, E. (Groningen U.) ; Balog, Z. (Heidelberg, Astron. Rechen Inst. ; Heidelberg, Max Planck Inst. Astron.) ; Barache, C. (SYRTE, Paris) ; Barbato, D. (ISDC, Versoix ; Turin Observ.) ; Barros, M. (Lisbon, CENTRA) ; Barstow, M.A. (Leicester U.) ; Bartolomé, S. (ICC, Barcelona U.) ; Bassilana, J.-L. (CNES, Toulouse) ; Bauchet, N. (GEPI, Meudon) ; Becciani, U. (Catania Astrophys. Observ.) ; Bellazzini, M. (Bologna Observ.) ; Berihuete, A. (Cadiz U.) ; Bernet, M. (ICC, Barcelona U.) ; Bertone, S. (Maryland U. ; NASA, Goddard ; Turin Observ.) ; Bianchi, L. (Turin, Cosmo-Geofisica Lab) ; Binnenfeld, A. (Tel Aviv U.) ; Blanco-Cuaresma, S. (Harvard-Smithsonian Ctr. Astrophys.) ; Blazere, A. (CNES, Toulouse) ; Boch, T. (Strasbourg Observ.) ; Bombrun, A. (ESA, Madrid) ; Bossini, D. (Porto U.) ; Bouquillon, S. (SYRTE, Paris ; Chile U., Santiago) ; Bragaglia, A. (Bologna Observ.) ; Bramante, L. (ALENIA, Turin) ; Breedt, E. (Cambridge U.) ; Bressan, A. (SISSA, Trieste) ; Brouillet, N. (LAB, Bordeaux) ; Brugaletta, E. (Catania Astrophys. Observ.) ; Bucciarelli, B. (Turin Observ. ; INFN, Turin ; Turin U.) ; Burlacu, A. (CNES, Toulouse) ; Butkevich, A.G. (Turin Observ.) ; Buzzi, R. (Turin Observ.) ; Caffau, E. (GEPI, Meudon) ; Cancelliere, R. (Polytech. Turin) ; Cantat-Gaudin, T. (ICC, Barcelona U. ; Heidelberg, Max Planck Inst. Astron.) ; Carballo, R. (Cantabria Inst. of Phys.) ; Carlucci, T. (SYRTE, Paris) ; Carnerero, M.I. (Turin Observ.) ; Carrasco, J.M. (ICC, Barcelona U.) ; Casamiquela, L. (LAB, Bordeaux ; GEPI, Meudon) ; Castellani, M. (Rome Observ.) ; Castro-Ginard, A. (Leiden Observ.) ; Chaoul, L. (CNES, Toulouse) ; Charlot, P. (LAB, Bordeaux) ; Chemin, L. (Antofagasta U.) ; Chiaramida, V. (ALENIA, Turin) ; Chiavassa, A. (OCA, Nice, Lab. Lagrange) ; Chornay, N. (Cambridge U.) ; Comoretto, G. (ESA, Madrid ; DLR, Neustrelitz) ; Contursi, G. (OCA, Nice, Lab. Lagrange) ; Cooper, W.J. (Hertfordshire U. ; Turin Observ.) ; Cornez, T. (CNES, Toulouse) ; Cowell, S. (Cambridge U.) ; Crifo, F. (GEPI, Meudon) ; Cropper, M. (Mullard Space Sci. Lab.) ; Crosta, M. (Turin Observ. ; Turin U., Math Dept.) ; Crowley, C. (ESA, Madrid) ; Dafonte, C. (Santiago de Compostela, IES) ; Dapergolas, A. (Athens Observ.) ; David, M. (Antwerp U.) ; David, P. (IMCCE, Paris) ; de Laverny, P. (OCA, Nice, Lab. Lagrange) ; De Luise, F. (Collurania Teramo Observ.) ; De March, R. (ALENIA, Turin) ; De Ridder, J. (Leuven U.) ; de Souza, R. (Sao Paulo U. ; Sao Paulo, Inst. Astron. Geofis.) ; de Torres, A. (ESA, Madrid) ; del Peloso, E.F. (Heidelberg, Astron. Rechen Inst.) ; del Pozo, E. (ESA, Madrid) ; Delbo, M. (OCA, Nice, Lab. Lagrange) ; Delgado, A. (ESA, Madrid) ; Delisle, J.-B. (ISDC, Versoix) ; Demouchy, C. (CNES, Toulouse) ; Dharmawardena, T.E. (Heidelberg, Max Planck Inst. Astron.) ; Di Matteo, P. (GEPI, Meudon) ; Diakite, S. (Franche Comte U.) ; Diener, C. (Cambridge U.) ; Distefano, E. (Catania Astrophys. Observ.) ; Dolding, C. (Mullard Space Sci. Lab.) ; Edvardsson, B. (Uppsala U.) ; Enke, H. (Potsdam, Astrophys. Inst.) ; Fabre, C. (CNES, Toulouse) ; Fabrizio, M. (Rome Observ. ; ASI, Rome) ; Faigler, S. (Tel Aviv U.) ; Fedorets, G. (Helsinki U. ; Adelaide U.) ; Fernique, P. (Strasbourg Observ.) ; Fienga, A. (Geoazur, Nice ; IMCCE, Paris) ; Figueras, F. (ICC, Barcelona U.) ; Fournier, Y. (Potsdam, Astrophys. Inst.) ; Fouron, C. (CNES, Toulouse) ; Fragkoudi, F. (Durham U. ; Durham U., ICC ; European Southern Observ. ; Garching, Max Planck Inst.) ; Gai, M. (Turin Observ.) ; Garcia-Gutierrez, A. (ICC, Barcelona U.) ; Garcia-Reinaldos, M. (ESA, Madrid) ; García-Torres, M. (Pablo de Olavide U., Seville) ; Garofalo, A. (Bologna Observ.) ; Gavel, A. (Uppsala U.) ; Gavras, P. (ESA, Madrid) ; Gerlach, E. (Lohrmann Observ.) ; Geyer, R. (Lohrmann Observ.) ; Giacobbe, P. (Turin Observ.) ; Gilmore, G. (Cambridge U.) ; Girona, S. (Barcelona Supercomputing Ctr.) ; Giuffrida, G. (Rome Observ.) ; Gomel, R. (Tel Aviv U.) ; Gomez, A. (Santiago de Compostela, IES) ; González-Núñez, J. (ESA, Madrid ; Vigo U.) ; González-Santamaría, I. (Santiago de Compostela, IES) ; González-Vidal, J.J. (ICC, Barcelona U.) ; Granvik, M. (Helsinki U. ; Lulea U. Technol. (main)) ; Guillout, P. (Strasbourg Observ.) ; Guiraud, J. (CNES, Toulouse) ; Gutiérrez-Sánchez, R. (ESA, Madrid) ; Guy, L.P. (Geneva U. ; NRAO, Tucson) ; Hatzidimitriou, D. (Athens U. ; Athens Observ.) ; Hauser, M. (Heidelberg, Max Planck Inst. Astron. ; Ulm U.) ; Haywood, M. (GEPI, Meudon) ; Helmer, A. (CNES, Toulouse) ; Helmi, A. (Groningen U.) ; Sarmiento, M.H. (ESA, Madrid) ; Hidalgo, S.L. (IAC, La Laguna) ; Hilger, T. (Lohrmann Observ.) ; Hładczuk, N. (ESA, Madrid ; Delft Tech. U.) ; Hobbs, D. (Lund U.) ; Holland, G. (Cambridge U.) ; Huckle, H.E. (Mullard Space Sci. Lab.) ; Jardine, K. (Leiden Observ.) ; Jasniewicz, G. (U. Montpellier 2, LUPM) ; Piccolo, A. Jean-Antoine (CNES, Toulouse) ; Jiménez-Arranz, Ó. (ICC, Barcelona U.) ; Jorissen, A. (Brussels U., IAA) ; Campillo, J. Juaristi (Heidelberg, Astron. Rechen Inst.) ; Julbe, F. (ICC, Barcelona U.) ; Karbevska, L. (Geneva U. ; U. Caen (main)) ; Kervella, P. (LESIA, Meudon) ; Khanna, S. (Groningen U. ; Turin Observ.) ; Kontizas, M. (Athens U.) ; Kordopatis, G. (OCA, Nice, Lab. Lagrange) ; Korn, A.J. (Uppsala U.) ; Kóspál, Á. (Wigner RCP, Budapest ; Heidelberg, Max Planck Inst. Astron. ; Eotvos Lorand U., Budapest, Inst. Theor. Phys.) ; Kostrzewa-Rutkowska, Z. (Leiden Observ. ; SRON, Utrecht) ; Kruszyńska, K. (Warsaw U. Observ.) ; Kun, M. (Wigner RCP, Budapest) ; Laizeau, P. (CNES, Toulouse) ; Lambert, S. (SYRTE, Paris) ; Lanza, A.F. (Catania Astrophys. Observ.) ; Lasne, Y. (CNES, Toulouse) ; Le Campion, J.-F. (LAB, Bordeaux) ; Lebreton, Y. (LESIA, Meudon ; Rennes U.) ; Lebzelter, T. (Vienna U.) ; Leccia, S. (Capodimonte Observ.) ; Leclerc, N. (GEPI, Meudon) ; Lecoeur-Taibi, I. (Geneva U.) ; Liao, S. (Shanghai, Astron. Observ. ; Turin Observ. ; Beijing, GUCAS) ; Licata, E.L. (Turin Observ.) ; Lindstrøm, H.E.P. (Turin Observ. ; DARK Cosmology Ctr. ; Unlisted, DE) ; Lister, T.A. (Las Cumbres Observ.) ; Livanou, E. (Athens U.) ; Lobel, A. (Royal Observ. of Belgium) ; Lorca, A. (ESA, Madrid) ; Loup, C. (Strasbourg Observ.) ; Pardo, P. Madrero (ICC, Barcelona U.) ; Romeo, A. Magdaleno (CNES, Toulouse) ; Managau, S. (CNES, Toulouse) ; Mann, R.G. (Edinburgh U., Inst. Astron.) ; Manteiga, M. (Santiago de Compostela, IES) ; Marchant, J.M. (Liverpool John Moores U., ARI) ; Marconi, M. (Capodimonte Observ.) ; Marcos, J. (ESA, Madrid) ; Santos, M.M.S. Marcos (ESA, Madrid) ; Pina, D. Marín (ICC, Barcelona U.) ; Marinoni, S. (Rome Observ. ; ASI, Rome) ; Marocco, F. (Caltech) ; Marshall, D.J. (IRAP, Toulouse) ; Polo, L. Martin (ESA, Madrid) ; Martín-Fleitas, J.M. (ESA, Madrid) ; Marton, G. (Wigner RCP, Budapest) ; Mary, N. (CNES, Toulouse) ; Masip, A. (ICC, Barcelona U.) ; Massari, D. (Bologna Observ.) ; Mastrobuono-Battisti, A. (GEPI, Meudon) ; Mazeh, T. (Tel Aviv U.) ; McMillan, P.J. (Lund U.) ; Messina, S. (Catania Astrophys. Observ.) ; Michalik, D. (ESTEC, Noordwijk) ; Millar, N.R. (Cambridge U.) ; Mints, A. (Potsdam, Astrophys. Inst.) ; Molina, D. (ICC, Barcelona U.) ; Molinaro, R. (Capodimonte Observ.) ; Molnár, L. (Wigner RCP, Budapest ; Eotvos Lorand U., Budapest, Inst. Theor. Phys.) ; Monari, G. (Strasbourg Observ.) ; Monguió, M. (ICC, Barcelona U.) ; Montegriffo, P. (Bologna Observ.) ; Montero, A. (ESA, Madrid) ; Mor, R. (ICC, Barcelona U.) ; Mora, A. (ESA, Madrid) ; Morbidelli, R. (Turin Observ.) ; Morel, T. (Liege U.) ; Morris, D. (Edinburgh U., Inst. Astron.) ; Muraveva, T. (Bologna Observ.) ; Murphy, C.P. (ESA, Madrid) ; Musella, I. (Capodimonte Observ.) ; Nagy, Z. (Wigner RCP, Budapest) ; Noval, L. (CNES, Toulouse) ; Ocaña, F. (ESA, Madrid ; Madrid U.) ; Ogden, A. (Cambridge U.) ; Ordenovic, C. (OCA, Nice, Lab. Lagrange) ; Osinde, J.O. (ESA, Madrid) ; Pagani, C. (Leicester U.) ; Pagano, I. (Catania Astrophys. Observ.) ; Palaversa, L. (Boskovic Inst., Zagreb ; Cambridge U.) ; Palicio, P.A. (OCA, Nice, Lab. Lagrange) ; Pallas-Quintela, L. (Santiago de Compostela, IES) ; Panahi, A. (Tel Aviv U.) ; Payne-Wardenaar, S. (Heidelberg, Astron. Rechen Inst.) ; Esteller, X. Peñalosa (ICC, Barcelona U.) ; Penttilä, A. (Helsinki U.) ; Pichon, B. (OCA, Nice, Lab. Lagrange) ; Piersimoni, A.M. (Collurania Teramo Observ.) ; Pineau, F.-X. (Strasbourg Observ.) ; Plachy, E. (Wigner RCP, Budapest ; Eotvos Lorand U., Budapest, Inst. Theor. Phys.) ; Plum, G. (GEPI, Meudon) ; Poggio, E. (OCA, Nice, Lab. Lagrange ; Turin Observ.) ; Prša, A. (Villanova U.) ; Pulone, L. (Rome Observ.) ; Racero, E. (ESA, Madrid ; Madrid U.) ; Ragaini, S. (Bologna Observ.) ; Rainer, M. (Arcetri Observ. ; Brera Observ.) ; Raiteri, C.M. (Turin Observ.) ; Rambaux, N. (IMCCE, Paris) ; Ramos, P. (ICC, Barcelona U. ; Strasbourg Observ.) ; Ramos-Lerate, M. (ESA, Madrid) ; Fiorentin, P. Re (Turin Observ.) ; Regibo, S. (Leuven U.) ; Richards, P.J. (Rutherford) ; Diaz, C. Rios (ESA, Madrid) ; Ripepi, V. (Capodimonte Observ.) ; Riva, A. (Turin Observ.) ; Rix, H.-W. (Heidelberg, Max Planck Inst. Astron.) ; Rixon, G. (Cambridge U.) ; Robichon, N. (GEPI, Meudon) ; Robin, A.C. (UTINAM, Besancon) ; Robin, C. (CNES, Toulouse) ; Roelens, M. (ISDC, Versoix) ; Rogues, H.R.O. (CNES, Toulouse) ; Rohrbasser, L. (Geneva U.) ; Romero-Gómez, M. (ICC, Barcelona U.) ; Rowell, N. (Edinburgh U., Inst. Astron.) ; Royer, F. (GEPI, Meudon) ; Mieres, D. Ruz (Cambridge U.) ; Rybicki, K.A. (Warsaw U. Observ.) ; Sadowski, G. (Brussels U., IAA) ; Núñez, A. Sáez (ICC, Barcelona U.) ; Sellés, A. Sagristà (Heidelberg, Astron. Rechen Inst.) ; Sahlmann, J. (ESA, Madrid) ; Salguero, E. (ESA, Madrid) ; Samaras, N. (Royal Observ. of Belgium ; Charles U.) ; Gimenez, V. Sanchez (ICC, Barcelona U.) ; Sanna, N. (Arcetri Observ.) ; Santoveña, R. (Santiago de Compostela, IES) ; Sarasso, M. (Turin Observ.) ; Schultheis, M. (OCA, Nice, Lab. Lagrange) ; Sciacca, E. (Catania Astrophys. Observ.) ; Segol, M. (CNES, Toulouse) ; Segovia, J.C. (ESA, Madrid) ; Ségransan, D. (ISDC, Versoix) ; Semeux, D. (CNES, Toulouse) ; Shahaf, S. (Weizmann Inst.) ; Siddiqui, H.I. (Princeton U., Astrophys. Sci. Dept.) ; Siebert, A. (Strasbourg Observ.) ; Siltala, L. (Helsinki U.) ; Silvelo, A. (Santiago de Compostela, IES) ; Slezak, E. (OCA, Nice, Lab. Lagrange) ; Slezak, I. (OCA, Nice, Lab. Lagrange) ; Smart, R.L. (Turin Observ.) ; Snaith, O.N. (GEPI, Meudon) ; Solano, E. (INTA, Madrid) ; Solitro, F. (ALENIA, Turin) ; Souami, D. (LESIA, Meudon ; Namur U.) ; Souchay, J. (SYRTE, Paris) ; Spagna, A. (Turin Observ.) ; Spina, L. (Padua Observ.) ; Spoto, F. (Harvard-Smithsonian Ctr. Astrophys.) ; Steele, I.A. (Liverpool John Moores U., ARI) ; Steidelmüller, H. (Lohrmann Observ.) ; Stephenson, C.A. (ESA, Madrid ; Bitfabrik, Rodgau) ; Süveges, M. (Geneva U.) ; Surdej, J. (Liege U. ; Mickiewicz U., Poznan) ; Szabados, L. (Wigner RCP, Budapest) ; Szegedi-Elek, E. (Wigner RCP, Budapest) ; Taris, F. (SYRTE, Paris) ; Taylor, M.B. (Bristol U.) ; Teixeira, R. (Sao Paulo U. ; Sao Paulo, Inst. Astron. Geofis.) ; Tolomei, L. (ALENIA, Turin) ; Tonello, N. (Barcelona Supercomputing Ctr.) ; Torra, F. (ICC, Barcelona U.) ; Torra, J. (ICC, Barcelona U.) ; Elipe, G. Torralba (Santiago de Compostela, IES) ; Trabucchi, M. (Padua U., Astron. Dept. ; ISDC, Versoix) ; Tsounis, A.T. (CERN) ; Turon, C. (GEPI, Meudon) ; Ulla, A. (Vigo U.) ; Unger, N. (ISDC, Versoix) ; Vaillant, M.V. (CNES, Toulouse) ; van Dillen, E. (CNES, Toulouse) ; van Reeven, W. (Unlisted, US ; Maryland U.) ; Vanel, O. (GEPI, Meudon) ; Vecchiato, A. (Turin Observ.) ; Viala, Y. (GEPI, Meudon) ; Vicente, D. (Barcelona Supercomputing Ctr.) ; Voutsinas, S. (Edinburgh U., Inst. Astron.) ; Weiler, M. (ICC, Barcelona U.) ; Wevers, T. (Cambridge U. ; European Southern Obs., Chile) ; Wyrzykowski, Ł. (Warsaw U. Observ.) ; Yoldas, A. (Cambridge U.) ; Yvard, P. (CNES, Toulouse) ; Zhao, H. (OCA, Nice, Lab. Lagrange) ; Zorec, J. (Paris, Inst. Astrophys.) ; Zucker, S. (Tel Aviv U.) ; Zwitter, T. (Ljubljana U.)

Publication 2023-06-01
Number of pages 22
In: Astron. Astrophys. 674 (2023) A1
DOI 10.1051/0004-6361/202243940
Accelerator/Facility, Experiment GAIA
Abstract Context. We present the third data release of the European Space Agency’s Gaia mission, Gaia DR3. This release includes a large variety of new data products, notably a much expanded radial velocity survey and a very extensive astrophysical characterisation of Gaia sources.Aims. We outline the content and the properties of Gaia DR3, providing an overview of the main improvements in the data processing in comparison with previous data releases (where applicable) and a brief discussion of the limitations of the data in this release.Methods. The Gaia DR3 catalogue is the outcome of the processing of raw data collected with the Gaia instruments during the first 34 months of the mission by the Gaia Data Processing and Analysis Consortium.Results. The Gaia DR3 catalogue contains the same source list, celestial positions, proper motions, parallaxes, and broad band photometry in the G, GBP, and GRP pass-bands already present in the Early Third Data Release, Gaia EDR3. Gaia DR3 introduces an impressive wealth of new data products. More than 33 million objects in the ranges GRVS < 14 and 3100 < Teff < 14 500, have new determinations of their mean radial velocities based on data collected by Gaia. We provide GRVS magnitudes for most sources with radial velocities, and a line broadening parameter is listed for a subset of these. Mean Gaia spectra are made available to the community. The Gaia DR3 catalogue includes about 1 million mean spectra from the radial velocity spectrometer, and about 220 million low-resolution blue and red prism photometer BP/RP mean spectra. The results of the analysis of epoch photometry are provided for some 10 million sources across 24 variability types. Gaia DR3 includes astrophysical parameters and source class probabilities for about 470 million and 1500 million sources, respectively, including stars, galaxies, and quasars. Orbital elements and trend parameters are provided for some 800 000 astrometric, spectroscopic and eclipsing binaries. More than 150 000 Solar System objects, including new discoveries, with preliminary orbital solutions and individual epoch observations are part of this release. Reflectance spectra derived from the epoch BP/RP spectral data are published for about 60 000 asteroids. Finally, an additional data set is provided, namely the Gaia Andromeda Photometric Survey, consisting of the photometric time series for all sources located in a 5.5 degree radius field centred on the Andromeda galaxy.Conclusions. This data release represents a major advance with respect to Gaia DR2 and Gaia EDR3 because of the unprecedented quantity, quality, and variety of source astrophysical data. To date this is the largest collection of all-sky spectrophotometry, radial velocities, variables, and astrophysical parameters derived from both low- and high-resolution spectra and includes a spectrophotometric and dynamical survey of SSOs of the highest accuracy. The non-single star content surpasses the existing data by orders of magnitude. The quasar host and galaxy light profile collection is the first such survey that is all sky and space based. The astrophysical information provided in Gaia DR3 will unleash the full potential of Gaia’s exquisite astrometric, photometric, and radial velocity surveys.Key words: techniques: photometric / techniques: spectroscopic / techniques: radial velocities / catalogs / astrometry / parallaxes⋆ Corresponding author: A. Vallenari, e-mail: antonella.vallenari@inaf.it)⋆⋆ Retired.† Deceased.
Copyright/License publication: © 2023-2024 The Authors (License: CC-BY-4.0)

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