| Title: |
Gaia Data Release 2. Observational Hertzsprung-Russell diagrams |
| Authors: |
Collaboration, Gaia; Babusiaux, C.; van Leeuwen, F.; Barstow, M. A.; Jordi, C.; Vallenari, A.; Bossini, D.; Bressan, A.; Cantat-Gaudin, T.; van Leeuwen, M.; Brown, A. G. A.; Prusti, T.; de Bruijne, J. H. J.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; Walton, N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.; Chaoul, L.; Cheek, N.; Deangeli, F.; Fabricius, C.; Guerra, R.; Holl, B.; Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo, P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.; Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson, M.; Deridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.; Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.; García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.; Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hernandez, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.; Jasniewicz, Gérard; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.; Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.; Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.; Mora, A.; Muinonen, K.; Osinde, J.; Pancino, E.; Pauwels, T.; Petit, J. -M.; Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Robin, A. C.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; Vanreeven, W.; Abbas, U.; Aramburu, A. Abreu; Accart, S.; Aerts, C.; Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson, R. I.; Andrei, A. H.; Varela, E. Anglada; Antiche, E.; Antoja, T.; Arcay, B.; Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.; Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem, P. S.; Barrado, D.; Barros, M.; Muñoz, S. Bartholomé; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.; Bertone, Stefano; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch, T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bouquillon, S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels, M. A.; Brouillet, N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere, R.; Cannizzaro, G.; Carballo, R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; Delaverny, P.; Deluise, F.; Demarch, R.; Demartino, D.; Desouza, R.; Detorres, A.; Debosscher, J.; Delpozo, E.; Delbò, M.; Delgado, A.; Delgado, H. E.; Diakité, S.; Diener, C.; Distefano, E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.; Eriksson, K.; Esquej, P.; Bontemps, G. Eynard; Fabre, C.; Fabrizio, M.; Faigler, S.; Falcao, A. J.; Casas, M. Farràs; Federici, L.; Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.; Fonti, A.; Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.; Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen, A.; Guerrier, A.; Guiraud, J.; Gutiérrez-Sánchez, R.; Haigron, R.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger, T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle, H. E.; Hypki, A.; Icardi, V.; Janssen, K.; Jevardatdefombelle, G.; Jonker, P. G.; Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar, J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas, E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Lefustec, Y.; Leponcin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Lopez, M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant, J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.; Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevic, G.; Mazeh, T.; Mcmillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina, D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva, T.; Musella, I.; Nelemans, G.; Nicastro, L.; Noval, L.; O’mullane, W.; Ordénovic, C.; Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni, A. M.; Pineau, F.-X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.; Regibo, S.; Reylé, C.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers, T.; Roelens, M.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruiz-Dern, L.; Sadowski, G.; Sellés, T. Sagristà; Sahlmann, J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Shih, I-C.; Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo, R.; Nieto, S. Soria; Souchay, J.; Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.; Thuillot, W.; Titarenko, A.; Clotet, F. Torra; Turon, C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.; Valette, V.; Elteren, A. Van; Hemelryck, E. Van; Vaschetto, M.; Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.; Essen, C. Von; Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T. |
| Contributors: |
Galaxies, Etoiles, Physique, Instrumentation (GEPI); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS); Institut de Planétologie et d'Astrophysique de Grenoble (IPAG); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG); Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ); Institute of Astronomy Cambridge; University of Cambridge UK (CAM); Department of Physics and Astronomy Leicester; University of Leicester; INAF - Osservatorio Astronomico di Padova (OAPD); Istituto Nazionale di Astrofisica (INAF); Agence Spatiale Européenne = European Space Agency (ESA); Geneva Observatory; Université de Genève = University of Geneva (UNIGE); Joseph Louis LAGRANGE (LAGRANGE); Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur; Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS); Université libre de Bruxelles (ULB); Laboratoire d'Astrophysique de Bordeaux Pessac (LAB); Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Zentrum für astronomie; Universität Heidelberg Heidelberg = Heidelberg University; Institut de Ciènces del Cosmos (ICC); Universitat de Barcelona (UB); University of Las Palmas de Gran Canaria (ULPGC); Systèmes de Référence Temps Espace (SYRTE); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Mullard Space Science Laboratory (MSSL); University College of London London (UCL); Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Royal Observatory of Belgium = Observatoire Royal de Belgique (ROB); INAF - Osservatorio Astrofisico di Torino (OATo); Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO); Laboratoire Univers et Particules de Montpellier (LUPM); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS); Department of Physics and Astronomy Uppsala; Uppsala University; INAF - Osservatorio Astrofisico di Catania (OACT); INAF - Osservatorio Astronomico di Bologna (OABO); Univers, Théorie, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC); Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC); Department of Astronomy and Space Physics Uppsala; Centro de Astrobiologia Madrid (CAB); Instituto Nacional de Técnica Aeroespacial (INTA)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC); Observatoire astronomique de Strasbourg (OAS); Institut national des sciences de l'Univers (INSU - CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS); Observatoire Astronomique de l'Université de Genève (ObsGE); Institute of Astronomy Leuven; Catholic University of Leuven = Katholieke Universiteit Leuven (KU Leuven); Scuola Internazionale Superiore di Studi Avanzati / International School for Advanced Studies (SISSA / ISAS); Computational Intelligence Research Group (CA3); Centre of Technology and Systems (CTS); Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA); Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA); Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA); Università degli Studi di Roma "La Sapienza" = Sapienza University Rome (UNIROMA); Astrometry; Istituto Nazionale di Astrofisica (INAF)-Istituto Nazionale di Astrofisica (INAF); Centre National d'Études Spatiales Toulouse (CNES); Department of Physics Athens; National and Kapodistrian University of Athens (NKUA); European Space Astronomy Centre (ESAC); Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Institut de Physique de Rennes (IPR); Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS); INAF - Osservatorio Astronomico di Capodimonte (OAC); Chinese Academy of Sciences Beijing (CAS); Astrophysics Research Institute Liverpool (ARI); Liverpool John Moores University (LJMU); NSF Center for EUV Science and Technology; NSF; ANR-10-IDEX-0001,PSL,Paris Sciences et Lettres(2010); ANR-15-CE31-0007,MOD4Gaia,Modélisation de la Voie Lactée à l'epoque de Gaia(2015) |
| Source: |
ISSN: 0004-6361. |
| Publisher Information: |
HAL CCSD; EDP Sciences |
| Publication Year: |
2018 |
| Collection: |
Université de Rennes 1: Publications scientifiques (HAL) |
| Subject Terms: |
Astrophysics - Solar and Stellar Astrophysics; Astrophysics - Astrophysics of Galaxies; [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]; [PHYS]Physics [physics] |
| Description: |
International audience ; We highlight the power of the Gaia DR2 in studying many fine structures of the Hertzsprung-Russell diagram (HRD). Gaia allows us to present many different HRDs, depending in particular on stellar population selections. We do not aim here for completeness in terms of types of stars or stellar evolutionary aspects. Instead, we have chosen several illustrative examples. We describe some of the selections that can be made in Gaia DR2 to highlight the main structures of the Gaia HRDs. We select both field and cluster (open and globular) stars, compare the observations with previous classifications and with stellar evolutionary tracks, and we present variations of the Gaia HRD with age, metallicity, and kinematics. Late stages of stellar evolution such as hot subdwarfs, post-AGB stars, planetary nebulae, and white dwarfs are also analysed, as well as low-mass brown dwarf objects. The Gaia HRDs are unprecedented in both precision and coverage of the various Milky Way stellar populations and stellar evolutionary phases. Many fine structures of the HRDs are presented. The clear split of the white dwarf sequence into hydrogen and helium white dwarfs is presented for the first time in an HRD. The relation between kinematics and the HRD is nicely illustrated. Two different populations in a classical kinematic selection of the halo are unambiguously identified in the HRD. Membership and mean parameters for a selected list of open clusters are provided. They allow drawing very detailed cluster sequences, highlighting fine structures, and providing extremely precise empirical isochrones that will lead to more insight in stellar physics. Gaia DR2 demonstrates the potential of combining precise astrometry and photometry for large samples for studies in stellar evolution and stellar population and opens an entire new area for HRD-based studies. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/1804.09378; ARXIV: 1804.09378; BIBCODE: 2018A&A.616A.10G; INSPIRE: 1797741 |
| DOI: |
10.1051/0004-6361/201832843 |
| Availability: |
https://hal.science/hal-01799668; https://hal.science/hal-01799668v1/document; https://hal.science/hal-01799668v1/file/Gaia%20Collaboration%20et%20al.%20-%202018%20-%20iGaiai%20Data%20Release%202%20Observational%20Hertzspr.pdf; https://doi.org/10.1051/0004-6361/201832843 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.4CB94596 |
| Database: |
BASE |