Gaia Early Data Release 3

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 28 Apr 2021Embargo end date: 01 Jan 2020 Poland, Hungary, Italy, United Kingdom, Italy, Belgium, Netherlands, Switzerland, Spain, Italy, France, Netherlands, Netherlands, Italy, Netherlands, Austria, Italy, United States, Denmark, Sweden, Spain, Belgium, Greece, Spain, Italy, Belgium Publisher:EDP SciencesJournal:Astronomy & Astrophysics, volume 649, page A6 (issn: 0004-6361, eissn: 1432-0746,

Copyright policy )Funded by:UKRI | UK Gaia CU9: Delivering G..., DFG | The Milky Way System, EC | CepBin +26 projects

Authors: Gaia Collaboration; Smart, R. L.; Sarro, L. M.; Rybizki, J.; Reylé, C.; Robin, A. C.; Hambly, N. C.; +193 Authors

Gaia Collaboration; Smart, R. L.; Sarro, L. M.; Rybizki, J.; Reylé, C.; Robin, A. C.; Hambly, N. C.; Abbas, U.; Barstow, M. A.; de Bruijne, J. H. J.; Bucciarelli, B.; Carrasco, J. M.; Cooper, W. J.; Hodgkin, S. T.; Masana, E.; Michalik, D.; Sahlmann, J.; Sozzetti, A.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer, L.; Hutton, A.; Jansen, F.; Jordi, C.; 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; Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; 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.; Harrison, D. L.; Hatzidimitriou, D.; Heiter, U.; Hernández, J.; Hestroffer, D.; 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.; Roegiers, T.; Siopis, C.; Smith, M.; Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.; Aramburu, A. Abreu; Accart, S.; Aerts, C.; Aguado, J. J.; Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Cid-Fuentes, J. Álvarez; Alves, J.; Anderson, R. I.; Varela, E. Anglada; Antoja, T.; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.; 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.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere, R.; Cánovas, H.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.; Carnerero, M. I; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.; Sampol, P. Castro; Chaoul, L.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cioni, M. -R. L.; Comoretto, G.; Cornez, T.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;

doi: 10.1051/0004-6361/202039498 , 10.48550/arxiv.2012.02061

arXiv: 2012.02061

handle: 2183/28480 , 10261/256784 , 20.500.14468/22247 , 10902/23738 , https://repository.ubn.ru.nl/handle/2066/233671 , 11370/111ba8cb-c5c0-493b-ba6b-5661eed51707 , 20.500.14243/518103 , 2268/296983 , 21.11116/0000-0008-F477-F , 21.11116/0000-0008-F479-D , 10067/1790800151162165141 , 20.500.11820/80c8034d-6ff5-43d3-9863-18e867340129 , 11577/3538012 , 20.500.11769/523765 , 1887/3254582 , 20.500.11767/127131 , 2318/1804592

Gaia Early Data Release 3

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Abstract

Aims. We produce a clean and well-characterised catalogue of objects within 100 pc of the Sun from the Gaia Early Data Release 3. We characterise the catalogue through comparisons to the full data release, external catalogues, and simulations. We carry out a first analysis of the science that is possible with this sample to demonstrate its potential and best practices for its use. Methods. Theselection of objects within 100 pc from the full catalogue used selected training sets, machine-learning procedures, astrometric quantities, and solution quality indicators to determine a probability that the astrometric solution is reliable. The training set construction exploited the astrometric data, quality flags, and external photometry. For all candidates we calculated distance posterior probability densities using Bayesian procedures and mock catalogues to define priors. Any object with reliable astrometry and a non-zero probability of being within 100 pc is included in the catalogue. Results. We have produced a catalogue of 331 312 objects that we estimate contains at least 92% of stars of stellar type M9 within 100 pc of the Sun. We estimate that 9% of the stars in this catalogue probably lie outside 100 pc, but when the distance probability function is used, a correct treatment of this contamination is possible. We produced luminosity functions with a high signal-to-noise ratio for the main-sequence stars, giants, and white dwarfs. We examined in detail the Hyades cluster, the white dwarf population, and wide-binary systems and produced candidate lists for all three samples. We detected local manifestations of several streams, superclusters, and halo objects, in which we identified 12 members of Gaia Enceladus. We present the first direct parallaxes of five objects in multiple systems within 10 pc of the Sun. Conclusions. We provide the community with a large, well-characterised catalogue of objects in the solar neighbourhood. This is a primary benchmark for measuring and understanding fundamental parameters and descriptive functions in astronomy.

Countries

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

Related Organizations

Spanish National Research Council
Spain
California Institute of Technology
United States
Tel Aviv University
Israel
Université Libre de Bruxelles
Belgium
University of Turin
Italy

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Keywords

SOLAR NEIGHBORHOOD, Astrometry; Catalogs; Hertzsprung-Russell and C-M diagrams; Solar neighborhood; Stars: low-mass; Stars: luminosity function, mass function, Aérospatiale, astronomie & astrophysique, 103003 Astronomie, Solar neighborhood, Astrophysics - astrophysics of galaxies, Astronomy, Stars: luminosity function, mass function, Stars: luminosity function, catalogs â€“ astrometry â€“ stars: luminosity function, Astrophysics / csillagászat, luminosity function, mass function [Stars], 103038 Space exploration, Astronomi, astrofysik och kosmologi, stars: low-mass, luminosity: mass function [Stars], QB Astronomy, Astronomy, Astrophysics and Cosmology, low-mass [stars], 103004 Astrophysics, MAIN-SEQUENCE, Hertzsprung-Russell-diagram, Stars:low-mass brown-dwarfs, solar neighborhood, Physics, Astrometry, 103004 Astrophysik, 520, solar, mass function â€“ Hertzsprung-Russell and C-M diagrams â€“ stars: low-mass â€“ solar neighborhood, BROWN DWARF, Astrophysics - Solar and Stellar Astrophysics, mass function, Mass function, NORTH GALACTIC POLE, Physical Sciences, CIRCULAR-VELOCITY CURVE, astrometry, 5101 Astronomical sciences, 570, astro-ph.SR, stars: luminosity function, astro-ph.GA, Physique, chimie, mathématiques & sciences de la terre, Luminosity-Function, FOS: Physical sciences, Mass-Function, Astronomy & Astrophysics, 103038 Weltraumforschung, 530, 5109 Space sciences, Astrophysics - solar and stellar astrophysics, DWARF LUMINOSITY-FUNCTION, 103003 Astronomy, luminosity function [stars], Physical, chemical, mathematical & earth Sciences, 5107 Particle and high energy physics, low-mass [Stars], 0201 Astronomical and Space Sciences, Stars: luminosity: mass function, Stars: low-mass, WHITE-DWARFS, Solar and Stellar Astrophysics (astro-ph.SR), catalogs; astrometry; stars: luminosity function; mass function; Hertzsprung-Russell and C-M diagrams; stars: low-mass; solar neighborhood; Astrophysics - Solar and Stellar Astrophysics; Astrophysics - Astrophysics of Galaxies, neighborhood, SKY-SURVEY, SOLAR-TYPE STARS, Science & Technology, Luminosity function, TRIGONOMETRIC PARALLAXES, Low-mass, WIDE BINARIES, Stars, Astrophysics - Astrophysics of Galaxies, stars: luminosity function, mass function, asztrofizika, QC Physics / fizika, Astrophysics of Galaxies (astro-ph.GA), Space science, astronomy & astrophysics, Hertzsprung-Russell and C-M diagrams, solar-neighborhood, Catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], catalogs, 33 Ciencias Tecnológicas

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