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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29791
Title: Gaia Data Release 2. Variable stars in the colour-absolute magnitude diagram
Authors: Gaia Collaboration
Eyer, L.
Rimoldini, L.
Audard, M.
Anderson, R. I.
Nienartowicz, K.
Glass, F.
Marchal, O.
Grenon, M.
Mowlavi, N.
Holl, B.
CLEMENTINI, Gisella 
Aerts, C.
Mazeh, T.
Evans, D. W.
Szabados, L.
Brown, A. G. A.
VALLENARI, Antonella 
Prusti, T.
de Bruijne, J. H. J.
Babusiaux, C.
Bailer-Jones, C. A. L.
Biermann, M.
Jansen, F.
Jordi, C.
Klioner, S. A.
Lammers, U.
Lindegren, L.
Luri, X.
Mignard, F.
Panem, C.
Pourbaix, D.
RANDICH, Maria Sofia 
Sartoretti, P.
Siddiqui, H. I.
Soubiran, C.
van Leeuwen, F.
Walton, N. A.
Arenou, F.
Bastian, U.
Cropper, M.
DRIMMEL, Ronald 
Katz, D.
GAI, Mario 
Bakker, J.
Cacciari, C.
Castañeda, J.
Chaoul, L.
Cheek, N.
De Angeli, F.
Fabricius, C.
Guerra, R.
Masana, E.
Messineo, R.
Panuzzo, P.
Portell, J.
Riello, M.
Seabroke, G. M.
Tanga, P.
Thévenin, F.
Gracia-Abril, G.
COMORETTO, Giovanni 
Garcia-Reinaldos, M.
Teyssier, D.
Altmann, M.
Andrae, R.
Bellas-Velidis, I.
Benson, K.
Berthier, J.
Blomme, R.
Burgess, P.
Busso, G.
Carry, B.
CELLINO, Alberto 
Clotet, M.
Creevey, O.
Davidson, M.
De Ridder, J.
Delchambre, L.
DELL'ORO, Aldo 
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.
Hernández, J.
Hestroffer, D.
Hodgkin, S. T.
Hutton, A.
Jasniewicz, G.
Jean-Antoine-Piccolo, A.
Jordan, S.
Korn, A. J.
Krone-Martins, A.
Lanzafame, Alessandro Carmelo 
Lebzelter, T.
Löffler, W.
Manteiga, M.
MARRESE, Paola Maria 
Martín-Fleitas, J. M.
Moitinho, A.
Mora, A.
Muinonen, K.
Osinde, J.
PANCINO, ELENA 
Pauwels, T.
Petit, J. -M.
Recio-Blanco, A.
Richards, P. J.
Robin, A. C.
Sarro, L. M.
Siopis, C.
Smith, M.
SOZZETTI, Alessandro 
Süveges, M.
Torra, J.
van Reeven, W.
ABBAS, Ummi 
Abreu Aramburu, A.
Accart, S.
ALTAVILLA, GIUSEPPE 
Álvarez, M. A.
Alvarez, R.
Alves, J.
Andrei, A. H.
Anglada Varela, E.
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.
Barstow, M. A.
Bartholomé Muñoz, S.
Bassilana, J. -L.
BECCIANI, Ugo 
BELLAZZINI, Michele 
Berihuete, A.
Bertone, S.
Bianchi, L.
Bienaymé, O.
Blanco-Cuaresma, S.
Boch, T.
BOECHE, CORRADO 
Bombrun, A.
Borrachero, R.
Bossini, D.
Bouquillon, S.
Bourda, G.
BRAGAGLIA, Angela 
Bramante, L.
Breddels, M. A.
Bressan, A.
Brouillet, N.
Brüsemeister, T.
Brugaletta, Elisa 
BUCCIARELLI, Beatrice 
Burlacu, A.
BUSONERO, Deborah 
Butkevich, A. G.
BUZZI, RAFFAELLA 
Caffau, E.
Cancelliere, R.
Cannizzaro, G.
Cantat-Gaudin, T.
Carballo, R.
Carlucci, T.
Carrasco, J. M.
Casamiquela, L.
CASTELLANI, Marco 
Castro-Ginard, A.
Charlot, P.
Chemin, L.
Chiavassa, A.
Cocozza, G.
Costigan, G.
Cowell, S.
Crifo, F.
CROSTA, Mariateresa 
Crowley, C.
Cuypers, J.
Dafonte, C.
Damerdji, Y.
Dapergolas, A.
David, P.
David, M.
de Laverny, P.
DE LUISE, Fiore 
De March, R.
DE MARTINO, Domitilla 
de Souza, R.
de Torres, A.
Debosscher, J.
del Pozo, E.
Delbo, M.
Delgado, A.
Delgado, H. E.
Diakite, S.
Diener, C.
DISTEFANO, Elisa Maria Carmela 
Dolding, C.
Drazinos, P.
Durán, J.
Edvardsson, B.
Enke, H.
Eriksson, K.
Esquej, P.
Eynard Bontemps, G.
Fabre, C.
FABRIZIO, Michele 
Faigler, S.
Falcão, A. J.
Farràs Casas, M.
Federici, L.
Fedorets, G.
Fernique, P.
Figueras, F.
Filippi, F.
Findeisen, K.
Fonti, A.
Fraile, E.
Fraser, M.
Frézouls, B.
Gai, M.
GALLETI, SILVIA 
Garabato, D.
García-Sedano, F.
GAROFALO, Alessia 
Garralda, N.
Gavel, A.
Gavras, P.
Gerssen, J.
Geyer, R.
GIACOBBE, Paolo 
Gilmore, G.
Girona, S.
Giuffrida, G.
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.
Jevardat de Fombelle, 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, Antonino Francesco 
Lasne, Y.
Lavigne, J. -B.
Le Fustec, Y.
Le Poncin-Lafitte, C.
Lebreton, Y.
LECCIA, Silvio 
Leclerc, N.
Lecoeur-Taibi, I.
Lenhardt, H.
Leroux, F.
Liao, S.
LICATA, ENRICO 
Lindstrøm, H. E. P.
Lister, T. A.
Livanou, E.
Lobel, A.
López, M.
Lorenz, D.
Managau, S.
Mann, R. G.
Mantelet, G.
Marchant, J. M.
MARCONI, Marcella 
MARINONI, SILVIA 
Marschalkó, G.
Marshall, D. J.
Martino, M.
Marton, G.
Mary, N.
Massari, D.
Matijevič, G.
McMillan, P. J.
MESSINA, Sergio 
Michalik, D.
Millar, N. R.
Molina, D.
MOLINARO, Roberto 
Molnár, L.
MONTEGRIFFO, Paolo 
Mor, R.
MORBIDELLI, Roberto 
Morel, T.
Morgenthaler, S.
Morris, D.
Mulone, A. F.
Muraveva, Tatiana 
MUSELLA, ILARIA 
Nelemans, G.
NICASTRO, LUCIANO 
Noval, L.
O'Mullane, W.
Ordénovic, C.
Ordóñez-Blanco, D.
Osborne, P.
Pagani, C.
PAGANO, Isabella 
Pailler, F.
Palacin, H.
Palaversa, L.
Panahi, A.
Pawlak, M.
PIERSIMONI, Anna Marina 
Pineau, F. -X.
Plachy, E.
Plum, G.
Poggio, Eloisa 
Poujoulet, E.
Prša, A.
PULONE, Luigi 
Racero, E.
Ragaini, S.
Rambaux, N.
Ramos-Lerate, M.
Regibo, S.
Reylé, C.
Riclet, F.
RIPEPI, Vincenzo 
RIVA, Alberto 
Rivard, A.
Rixon, G.
Roegiers, T.
Roelens, M.
Romero-Gómez, M.
Rowell, N.
Royer, F.
Ruiz-Dern, L.
Sadowski, G.
Sagristà Sellés, T.
Sahlmann, J.
Salgado, J.
Salguero, E.
SANNA, Nicoletta 
Santana-Ros, T.
SARASSO, Maria Margherita 
Savietto, H.
Schultheis, M.
SCIACCA, Eva 
Segol, M.
Segovia, J. C.
Ségransan, D.
Shih, I. -C.
Siltala, L.
Silva, A. F.
SMART, Richard Laurence 
Smith, K. W.
Solano, E.
Solitro, F.
SORDO, ROSANNA 
Soria Nieto, S.
Souchay, J.
SPAGNA, Alessandro 
Spoto, F.
Stampa, U.
Steele, I. A.
Steidelmüller, H.
Stephenson, C. A.
Stoev, H.
Suess, F. F.
Surdej, J.
Szegedi-Elek, E.
Tapiador, D.
Taris, F.
Tauran, G.
Taylor, M. B.
Teixeira, R.
Terrett, D.
Teyssandier, P.
Thuillot, W.
Titarenko, A.
Torra Clotet, F.
Turon, C.
Ulla, A.
Utrilla, E.
Uzzi, S.
Vaillant, M.
VALENTINI, Gaetano 
Valette, V.
van Elteren, A.
Van Hemelryck, E.
van Leeuwen, M.
Vaschetto, M.
VECCHIATO, Alberto 
Veljanoski, J.
Viala, Y.
Vicente, D.
Vogt, S.
von Essen, C.
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.
Issue Date: 2019
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 623
First Page: A110
Abstract: Context. The ESA Gaia mission provides a unique time-domain survey for more than 1.6 billion sources with G ≲ 21 mag. <BR /> Aims: We showcase stellar variability in the Galactic colour-absolute magnitude diagram (CaMD). We focus on pulsating, eruptive, and cataclysmic variables, as well as on stars that exhibit variability that is due to rotation and eclipses. Methods: We describe the locations of variable star classes, variable object fractions, and typical variability amplitudes throughout the CaMD and show how variability-related changes in colour and brightness induce "motions". To do this, we use 22 months of calibrated photometric, spectro-photometric, and astrometric Gaia data of stars with a significant parallax. To ensure that a large variety of variable star classes populate the CaMD, we crossmatched Gaia sources with known variable stars. We also used the statistics and variability detection modules of the Gaia variability pipeline. Corrections for interstellar extinction are not implemented in this article. <BR /> Results: Gaia enables the first investigation of Galactic variable star populations in the CaMD on a similar, if not larger, scale as was previously done in the Magellanic Clouds. Although the observed colours are not corrected for reddening, distinct regions are visible in which variable stars occur. We determine variable star fractions to within the current detection thresholds of Gaia. Finally, we report the most complete description of variability-induced motion within the CaMD to date. <BR /> Conclusions: Gaia enables novel insights into variability phenomena for an unprecedented number of stars, which will benefit the understanding of stellar astrophysics. The CaMD of Galactic variable stars provides crucial information on physical origins of variability in a way that has previously only been accessible for Galactic star clusters or external galaxies. Future Gaia data releases will enable significant improvements over this preview by providing longer time series, more accurate astrometry, and additional data types (time series BP and RP spectra, RVS spectra, and radial velocities), all for much larger samples of stars. <P />A movie associated to Fig. 11 is available at <A href="https://www.aanda.org/10.1051/0004-6361/201833304/olm">http://https://www.aanda.org</A>.Data are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/A110">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/A110
URI: http://hdl.handle.net/20.500.12386/29791
URL: https://www.aanda.org/articles/aa/full_html/2019/03/aa33304-18/aa33304-18.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201833304
Bibcode ADS: 2019A&A...623A.110G
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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