<i>Gaia</i>Data Release 1
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. PrustiScientific Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201AZ Noordwijk, The NetherlandsJ. H. J. de BruijneScientific Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201AZ Noordwijk, The NetherlandsF. MignardLaboratoire Lagrange, Université Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, CNRS, CS 34229, 06304 Nice Cedex, FranceR. DrimmelINAF−Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), ItalyC. BabusiauxGEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92190 Meudon, FranceC. A. L. Bailer‐JonesMax Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, GermanyU. BastianAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyM. BiermannAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyD. 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, SwitzerlandF. JansenMission Operations Division, Operations Department, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201 AZ, Noordwijk, The NetherlandsC. JordiInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainD. KatzGEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92190 Meudon, FranceS. A. KlionerLohrmann Observatory, Technische Universität Dresden, Mommsenstraße 13, 01062 Dresden, GermanyU. LammersEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainL. LindegrenLund Observatory, Department of Astronomy and Theoretical Physics, Lund University, Box 43, 22100 Lund, SwedenX. LuriInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainWilliam O’MullaneEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainC. PanemCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceD. PourbaixInstitut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles CP 226, Boulevard du Triomphe, 1050 Brussels, BelgiumS. RandichINAF−Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Firenze, ItalyP. SartorettiGEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92190 Meudon, FranceH. I. SiddiquiTelespazio Vega UK Ltd for ESA/ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainC. SoubiranLaboratoire d'astrophysique de Bordeaux, Université de Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 33615 Pessac, FranceV. ValetteCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceF. van LeeuwenInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKN. A. WaltonInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKC. AertsDepartment of Astrophysics/IMAPP, RadboudUniversity Nijmegen, PO Box 9010, 6500 GL Nijmegen, The NetherlandsF. ArenouGEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92190 Meudon, FranceM. CropperMullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UKE. HøgNiels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen Ø, DenmarkM. G. LattanziINAF−Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), ItalyE. K. GrebelAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyAndrew D. HollandCentre for Electronic Imaging, Department of Physical Sciences, The Open University, Walton Hall MK7 6AA Milton Keynes, UKC. HucCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceX. PassotCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FrancePerryman, MichaelScientific Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201AZ Noordwijk, The NetherlandsL. BramanteC. CacciariINAF−Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, ItalyJ. CastañedaInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainL. ChaoulCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceN. CheekF. De AngeliInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKC. FabriciusInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainR. GuerraEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainJ. HernándezEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainA. Jean-Antoine-PiccoloCNES Centre Spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, FranceE. MasanaInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainR. MessineoN. MowlaviDepartment of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, SwitzerlandK. NienartowiczDepartment of Astronomy, University of Geneva, Chemin d'Ecogia 16, 1290 Versoix, SwitzerlandD. Ordóñez-BlancoDepartment of Astronomy, University of Geneva, Chemin d'Ecogia 16, 1290 Versoix, SwitzerlandP. PanuzzoGEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92190 Meudon, FranceJ. PortellInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainP. J. RichardsSTFC, Rutherford Appleton Laboratory, Harwell, Didcot, OX11 0QX, UKM. RielloInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKG. M. SeabrokeMullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UKP. TangaLaboratoire Lagrange, Université Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, CNRS, CS 34229, 06304 Nice Cedex, FranceF. ThéveninLaboratoire Lagrange, Université Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, CNRS, CS 34229, 06304 Nice Cedex, FranceJ. TorraInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainS. ElsGaia DPAC Project Office, ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainG. Gracia-AbrilInstitut de Ciències del Cosmos, Universitat de Barcelona (IEEC-UB), Martí Franquès 1, 08028 Barcelona, SpainG. ComorettoTelespazio Vega UK Ltd for ESA/ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainM. Garcia-ReinaldosEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainT. LockEuropean Space Astronomy Centre (ESA/ESAC), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainEmma MercierAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyM. AltmannAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyR. AndraeMax Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, GermanyT. L. AstraatmadjaMax Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, GermanyI. Bellas-VelidisNational Observatory of Athens, I. Metaxa and Vas. Pavlou, Palaia Penteli, 15236 Athens, GreeceH. J. McCrackenMullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UKJ. BerthierIMCCE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Univ. Lille, 77 av. Denfert-Rochereau, 75014 Paris, FranceR. BlommeRoyal Observatory of Belgium, Ringlaan 3, 1180 Brussels, BelgiumG. BussoInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKB. CarryIMCCE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Univ. Lille, 77 av. Denfert-Rochereau, 75014 Paris, FranceA. CellinoINAF−Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), ItalyG. ClementiniINAF−Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, ItalyS. CowellInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKO. L. CreeveyInstitut d'Astrophysique Spatiale, Université Paris XI, UMR 8617, CNRS, Bâtiment 121, 91405, Orsay Cedex, FranceJ. CuypersRoyal Observatory of Belgium, Ringlaan 3, 1180 Brussels, BelgiumM. DavidInstitute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UKJ. De RidderInstituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, BelgiumA. de TorresHE Space Operations BV for ESA/ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainL. DelchambreInstitut d'Astrophysique et de Géophysique, Université de Liège, 19c, Allée du 6 Août, 4000 Liège, BelgiumA. Dell’OroINAF−Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Firenze, ItalyC. DucourantLaboratoire d'astrophysique de Bordeaux, Université de Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 33615 Pessac, FranceY. FrématRoyal Observatory of Belgium, Ringlaan 3, 1180 Brussels, BelgiumMiguel García-TorresÁrea de Lenguajes y Sistemas Informáticos, Universidad Pablo de Olavide, Ctra. de Utrera, km 1, 41013 Sevilla, SpainE. GossetF.R.S.-FNRS, Rue d'Egmont 5, 1000 Brussels, BelgiumJ. L. HalbwachsObservatoire Astronomique de Strasbourg, Université de Strasbourg, CNRS, UMR 7550, 11 rue de l'Université, 67000 Strasbourg, FranceN. C. HamblyInstitute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UKD. L. HarrisonKavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKM. HäuserAstronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr, 12−14, 69120 Heidelberg, GermanyDaniel HestrofferIMCCE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Univ. Lille, 77 av. Denfert-Rochereau, 75014 Paris, FranceS. T. HodgkinInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKH. E. HuckleMullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UKA. HuttonAurora Technology for ESA/ESAC, Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, SpainG. JasniewiczLaboratoire Univers et Particules de Montpellier, Université Montpellier, Place Eugène Bataillon, CC72, 34095 Montpellier Cedex 05, France
2016en
ABI
Abstract
Context. At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7. \n \nAims. A summary of Gaia DR1 is presented along with illustrations of the scientific quality of the data, followed by a discussion of the limitations due to the preliminary nature of this release. \n \nMethods. The raw data collected by Gaia during the first 14 months of the mission have been processed by the Gaia Data Processing and Analysis Consortium (DPAC) and turned into an astrometric and photometric catalogue. \n \nResults. Gaia DR1 consists of three components: a primary astrometric data set which contains the positions, parallaxes, and mean proper motions for about 2 million of the brightest stars in common with the Hipparcos and Tycho-2 catalogues – a realisation of the Tycho-Gaia Astrometric Solution (TGAS) – and a secondary astrometric data set containing the positions for an additional 1.1 billion sources. The second component is the photometric data set, consisting of mean G-band magnitudes for all sources. The G-band light curves and the characteristics of ~3000 Cepheid and RR Lyrae stars, observed at high cadence around the south ecliptic pole, form the third component. For the primary astrometric data set the typical uncertainty is about 0.3 mas for the positions and parallaxes, and about 1 mas yr-1 for the proper motions. A systematic component of ~0.3 mas should be added to the parallax uncertainties. For the subset of ~94 000 Hipparcos stars in the primary data set, the proper motions are much more precise at about 0.06 mas yr-1. For the secondary astrometric data set, the typical uncertainty of the positions is ~10 mas. The median uncertainties on the mean G-band magnitudes range from the mmag level to ~0.03 mag over the magnitude range 5 to 20.7. \n \nConclusions. Gaia DR1 is an important milestone ahead of the next Gaia data release, which will feature five-parameter astrometry for all sources. Extensive validation shows that Gaia DR1 represents a major advance in the mapping of the heavens and the availability of basic stellar data that underpin observational astrophysics. Nevertheless, the very preliminary nature of this first Gaia data release does lead to a number of important limitations to the data quality which should be carefully considered before drawing conclusions from the data.
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Citations and references
Cited by 20 references