<i>Gaia</i>Early Data Release 3
A. G. A. BrownLeiden Observatory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The NetherlandsA. VallenariINAF – Osservatorio astronomico di Padova, Vicolo Osservatorio 5, 35122 Padova, ItalyT. PrustiEuropean Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201AZ, Noordwijk, The NetherlandsJ. H. J. de BruijneEuropean Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201AZ, Noordwijk, The NetherlandsJ.H.J. de Bruijne[ESA ESTEC]C. BabusiauxGEPI, Observatoire de Paris, Université PSL, CNRS, 5 Place Jules Janssen, 92190 Meudon, FranceBiermann, M.Max Planck Institute for AstronomyM. BiermannAstronomisches Rechen-Institut, Zentrum f u¨r Astronomie der Universit a¨t Heidelberg, M o¨nchhofstr. 12-14, 69120 Heidelberg, GermanyO. L. CreeveyUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceCreevey, O. L.Evans, D. W.D. W. EvansInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKL. EyerDepartment of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, SwitzerlandEyer, L.A. HuttonAurora Technology for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainHutton, A.F. JansenEuropean Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201AZ, Noordwijk, The NetherlandsJansen, F.C. JordiInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainJordi, C.S. A. KlionerLohrmann Observatory, Technische Universit a¨t Dresden, Mommsenstraße 13, 01062 Dresden, GermanyKlioner, S. A.U. LammersEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainLammers, U.Lindegren, L.L. LindegrenLund Observatory, Department of Astronomy and Theoretical Physics, Lund University, Box 43, 22100 Lund, SwedenX. LuriInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainLuri, X.Mignard, F.F. MignardUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceC. PanemCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FrancePanem, C.Pourbaix, D.D. PourbaixInstitut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles CP 226, Boulevard du Triomphe, 1050 Brussels, BelgiumRandich, S.S. RandichINAF – Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 555 Firenze, ItalyP. SartorettiGEPI, Observatoire de Paris, Université PSL, CNRS, 5 Place Jules Janssen, 92190 Meudon, FranceSartoretti, P.C. SoubiranLaboratoire d'astrophysique de Bordeaux, Univ. Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 33615 Pessac, FranceSoubiran, C.A. ZaccheiInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKWalton, N. A.F. ArenouGEPI, Observatoire de Paris, Université PSL, CNRS, 5 Place Jules Janssen, 92190 Meudon, FranceArenou, F.C. A. L. Bailer-JonesMax Planck Institute for Astronomy, K o¨nigstuhl 17, 69117 Heidelberg, GermanyBailer-Jones, C. A. L.U. BastianAstronomisches Rechen-Institut, Zentrum f u¨r Astronomie der Universit a¨t Heidelberg, M o¨nchhofstr. 12-14, 69120 Heidelberg, GermanyBastian, U.Cropper, M.M. CropperMullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UKR. DrimmelINAF – Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese (TO), ItalyDrimmel, R.Katz, D.D. KatzObservatoire de ParisLattanzi, M. G.M. G. LattanziINAF – Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese (TO), ItalyF. van LeeuwenInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKvan Leeuwen, F.J. BakkerEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainBakker, J.C. CacciariINAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, ItalyCacciari, C.Castañeda, J.J. CastañedaDAPCOM for Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainF. De AngeliInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKDe Angeli, F.C. DucourantLaboratoire d'astrophysique de Bordeaux, Univ. Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 33615 Pessac, FranceDucourant, C.Fabricius, C.C. FabriciusInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainFouesneau, M.M. FouesneauMax Planck Institute for Astronomy, K o¨nigstuhl 17, 69117 Heidelberg, GermanyY. FrématRoyal Observatory of Belgium, Ringlaan 3, 1180 Brussels, BelgiumFrémat, Y.Astronomy and SpaceR. GuerraEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainGuerra, R.A. GuerrierCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceGuerrier, A.Astronomy and SpaceJ. GuiraudCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceGuiraud, J.Jean-Antoine Piccolo, A.A. Jean-Antoine PiccoloCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceE. MasanaInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainMasana, E.Astronomy and SpaceR. MessineoMessineo, R.Mowlavi, N.Astronomy and SpaceN. MowlavïDepartment of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, SwitzerlandC. NicolasCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceNicolas, C.Osservatorio di Astrofisica e Scienza dello SpazioK. NienartowiczSednai Sàrl, Geneva, SwitzerlandNienartowicz, K.Osservatorio Astrofisico di CataniaF. PaillerCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FrancePailler, F.Panuzzo, P.P. PanuzzoGEPI, Observatoire de Paris, Université PSL, CNRS, 5 Place Jules Janssen, 92190 Meudon, FranceF. RicletCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceRiclet, F.W. RouxCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceRoux, W.Seabroke, G. M.G. M. SeabrokeMullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UKR. SordoINAF – Osservatorio astronomico di Padova, Vicolo Osservatorio 5, 35122 Padova, ItalySordo, R.P. TangaUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceTanga, P.Thévenin, F.F. ThéveninUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceG. Gracia-AbrilGaia DPAC Project Office, ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainGracia-Abril, G.J. PortellInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Martí i Franquès 1, 08028 Barcelona, SpainPortell, J.D. TeyssierTelespazio Vega UK Ltd for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainTeyssier, D.M. AltmannAstronomisches Rechen-Institut, Zentrum f u¨r Astronomie der Universit a¨t Heidelberg, M o¨nchhofstr. 12-14, 69120 Heidelberg, GermanyAltmann, M.Andrae, R.R. AndraeMax Planck Institute for Astronomy, K o¨nigstuhl 17, 69117 Heidelberg, GermanyI. Bellas-VelidisNational Observatoryof Athens, I. Metaxa and Vas. Pavlou, Palaia Penteli, 15236 Athens, GreeceBellas-Velidis, I.K. BensonMullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UKBenson, K.J. BerthierIMCCE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Univ. Lille, 77 av. Denfert-Rochereau, 75014 Paris, FranceBerthier, J.Blomme, R.R. BlommeRoyal Observatory of Belgium, Ringlaan 3, 1180 Brussels, BelgiumE. BrugalettaINAF – Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, ItalyBrugaletta, E.Burgess, P. W.P. W. BurgessInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKBusso, G.G. BussoInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKCarry, B.B. CarryUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceA. CellinoINAF – Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese (TO), ItalyCellino, A.N. CheekSerco Gestión de Negocios forEuropean Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainCheek, N.Clementini, G.G. ClementiniINAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, ItalyDamerdji, Y.Y. DamerdjiCRAAG – Centre de Recherche en Astronomie, Astrophysique et Géophysique, Route de l'Observatoire Bp 63 Bouzareah 16340 Algiers, AlgeriaM. DavidsonInstitute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UKDavidson, M.Delchambre, L.L. DelchambreInstitut d'Astrophysique et de Géophysique, Université de Liège, 19c, Allée du 6 Août, 4000 Liège, BelgiumDell’Oro, A.A. Dell’OroINAF – Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 555 Firenze, ItalyFernández-Hernández, J.J. Fernández-HernándezATG Europe for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainL. GalluccioUniversité Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304 Nice Cedex 4, FranceGalluccio, L.P. García-LarioEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainGarcía-Lario, P.M. Garcia-ReinaldosEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainGarcia-Reinaldos, M.J. González-NúñezSerco Gestión de Negocios forEuropean Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainGonzález-Núñez, J.Gosset, E.E. GossetF.R.S.-FNRS, Rue d'Egmont 5, 1000 Brussels, BelgiumR. HaigronGEPI, Observatoire de Paris, Université PSL, CNRS, 5 Place Jules Janssen, 92190 Meudon, FranceHaigron, R.J.-L. HalbwachsUniversité de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, 11 ruede l'Université, 67000 Strasbourg, FranceHalbwachs, J.-L.N. C. HamblyInstitute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UKHambly, N. C.D. L. HarrisonInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKHarrison, D. L.Hatzidimitriou, D.D. HatzidimitriouDepartment of Astrophysics, Astronomy and Mechanics, National and Kapodistrian University of Athens, Panepistimiopolis, Zografos, 15783 Athens, GreeceU. HeiterObservational Astrophysics, Division of Astronomy and Space Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, SwedenHeiter, U.J. HernándezEuropean Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainHernández, J.Daniel HestrofferIMCCE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Univ. Lille, 77 av. Denfert-Rochereau, 75014 Paris, FranceHestroffer, D.Hodgkin, S. T.S. T. HodgkinInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKB. HollDepartment of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, SwitzerlandHoll, B.K. JanßenLeibniz Institute for Astrophysics Potsdam (AIP), An der Sternwarte 16, 14482 Potsdam, GermanyJanßen, K.G. Jevardat de FombelleDepartment of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, SwitzerlandJevardat de Fombelle, G.Jordan, S.S. JordanAstronomisches Rechen-Institut, Zentrum f u¨r Astronomie der Universit a¨t Heidelberg, M o¨nchhofstr. 12-14, 69120 Heidelberg, GermanyA. Krone-MartinsCENTRA, Faculdade de Ciências, Universidade de Lisboa, Edif. C8, Campo Grande, 1749-016 Lisboa, PortugalKrone-Martins, A.A. C. LanzafameINAF – Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, ItalyLanzafame, A. C.Löffler, W.W. LöfflerAstronomisches Rechen-Institut, Zentrum f u¨r Astronomie der Universit a¨t Heidelberg, M o¨nchhofstr. 12-14, 69120 Heidelberg, GermanyLorca, A.A. LorcaAurora Technology for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainM. ManteigaCITIC, Department of Nautical Sciences and Marine Engineering, University of A Coruña, Campus de Elviña s/n, 15071, A Coruña, SpainManteiga, M.
2020en
ABI
Аннотация
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
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 14Использованных источников: 0