000004444 001__ 4444
000004444 005__ 20200114151402.0
000004444 0247_ $$2DOI$$a10.1051/0004-6361/201833304
000004444 037__ $$aSCART-2020-0002
000004444 100__ $$aGaia Collaboration
000004444 245__ $$aGaia Data Release 2. Variable stars in the colour-absolute magnitude diagram
000004444 260__ $$c2019
000004444 520__ $$aContext. The ESA Gaia mission provides a unique time-domain survey for more than 1.6 billion sources with G ≲ 21 mag. 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. 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. 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. A movie associated to Fig. 11 is available at http://https://www.aanda.org.Data are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/A110.
000004444 536__ $$aPRODEX/$$cPRODEX/$$fPRODEX
000004444 594__ $$aNO
000004444 6531_ $$astars: general; stars: variables: general; stars: oscillations; binaries: eclipsing; surveys; methods: data analysis; Astrophysics - Solar and Stellar Astrophysics
000004444 700__ $$aEyer, L.
000004444 700__ $$aRimoldini, L.
000004444 700__ $$aAudard, M.
000004444 700__ $$aAnderson, R. I.
000004444 700__ $$aNienartowicz, K.
000004444 700__ $$aGlass, F.
000004444 700__ $$aMarchal, O.
000004444 700__ $$aGrenon, M.
000004444 700__ $$aMowlavi, N.
000004444 700__ $$aHoll, B.
000004444 700__ $$aClementini, G.
000004444 700__ $$aAerts, C.
000004444 700__ $$aMazeh, T.
000004444 700__ $$aEvans, D. W.
000004444 700__ $$aSzabados, L.
000004444 700__ $$aBrown, A. G. A.
000004444 700__ $$aVallenari, A.
000004444 700__ $$aPrusti, T.
000004444 700__ $$ade Bruijne, J. H. J.
000004444 700__ $$aBabusiaux, C.
000004444 700__ $$aBailer-Jones, C. A. L.
000004444 700__ $$aBiermann, M.
000004444 700__ $$aJansen, F.
000004444 700__ $$aJordi, C.
000004444 700__ $$aKlioner, S. A.
000004444 700__ $$aLammers, U.
000004444 700__ $$aLindegren, L.
000004444 700__ $$aLuri, X.
000004444 700__ $$aMignard, F.
000004444 700__ $$aPanem, C.
000004444 700__ $$aPourbaix, D.
000004444 700__ $$aRandich, S.
000004444 700__ $$aSartoretti, P.
000004444 700__ $$aSiddiqui, H. I.
000004444 700__ $$aSoubiran, C.
000004444 700__ $$avan Leeuwen, F.
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000004444 700__ $$aKatz, D.
000004444 700__ $$aLattanzi, M. G.
000004444 700__ $$aBakker, J.
000004444 700__ $$aCacciari, C.
000004444 700__ $$aCastañeda, J.
000004444 700__ $$aChaoul, L.
000004444 700__ $$aCheek, N.
000004444 700__ $$aDe Angeli, F.
000004444 700__ $$aFabricius, C.
000004444 700__ $$aGuerra, R.
000004444 700__ $$aMasana, E.
000004444 700__ $$aMessineo, R.
000004444 700__ $$aPanuzzo, P.
000004444 700__ $$aPortell, J.
000004444 700__ $$aRiello, M.
000004444 700__ $$aSeabroke, G. M.
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000004444 700__ $$aBrüsemeister, T.
000004444 700__ $$aBrugaletta, E.
000004444 700__ $$aBucciarelli, B.
000004444 700__ $$aBurlacu, A.
000004444 700__ $$aBusonero, D.
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000004444 700__ $$aCantat-Gaudin, T.
000004444 700__ $$aCarballo, R.
000004444 700__ $$aCarlucci, T.
000004444 700__ $$aCarrasco, J. M.
000004444 700__ $$aCasamiquela, L.
000004444 700__ $$aCastellani, M.
000004444 700__ $$aCastro-Ginard, A.
000004444 700__ $$aCharlot, P.
000004444 700__ $$aChemin, L.
000004444 700__ $$aChiavassa, A.
000004444 700__ $$aCocozza, G.
000004444 700__ $$aCostigan, G.
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000004444 700__ $$aCrifo, F.
000004444 700__ $$aCrosta, M.
000004444 700__ $$aCrowley, C.
000004444 700__ $$aCuypers, J.
000004444 700__ $$aDafonte, C.
000004444 700__ $$aDamerdji, Y.
000004444 700__ $$aDapergolas, A.
000004444 700__ $$aDavid, P.
000004444 700__ $$aDavid, M.
000004444 700__ $$ade Laverny, P.
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000004444 700__ $$aDe March, R.
000004444 700__ $$ade Martino, D.
000004444 700__ $$ade Souza, R.
000004444 700__ $$ade Torres, A.
000004444 700__ $$aDebosscher, J.
000004444 700__ $$adel Pozo, E.
000004444 700__ $$aDelbo, M.
000004444 700__ $$aDelgado, A.
000004444 700__ $$aDelgado, H. E.
000004444 700__ $$aDiakite, S.
000004444 700__ $$aDiener, C.
000004444 700__ $$aDistefano, E.
000004444 700__ $$aDolding, C.
000004444 700__ $$aDrazinos, P.
000004444 700__ $$aDurán, J.
000004444 700__ $$aEdvardsson, B.
000004444 700__ $$aEnke, H.
000004444 700__ $$aEriksson, K.
000004444 700__ $$aEsquej, P.
000004444 700__ $$aEynard Bontemps, G.
000004444 700__ $$aFabre, C.
000004444 700__ $$aFabrizio, M.
000004444 700__ $$aFaigler, S.
000004444 700__ $$aFalcão, A. J.
000004444 700__ $$aFarràs Casas, M.
000004444 700__ $$aFederici, L.
000004444 700__ $$aFedorets, G.
000004444 700__ $$aFernique, P.
000004444 700__ $$aFigueras, F.
000004444 700__ $$aFilippi, F.
000004444 700__ $$aFindeisen, K.
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000004444 700__ $$aFrézouls, B.
000004444 700__ $$aGai, M.
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000004444 700__ $$aGarabato, D.
000004444 700__ $$aGarcía-Sedano, F.
000004444 700__ $$aGarofalo, A.
000004444 700__ $$aGarralda, N.
000004444 700__ $$aGavel, A.
000004444 700__ $$aGavras, P.
000004444 700__ $$aGerssen, J.
000004444 700__ $$aGeyer, R.
000004444 700__ $$aGiacobbe, P.
000004444 700__ $$aGilmore, G.
000004444 700__ $$aGirona, S.
000004444 700__ $$aGiuffrida, G.
000004444 700__ $$aGomes, M.
000004444 700__ $$aGranvik, M.
000004444 700__ $$aGueguen, A.
000004444 700__ $$aGuerrier, A.
000004444 700__ $$aGuiraud, J.
000004444 700__ $$aGutiérrez-Sánchez, R.
000004444 700__ $$aHaigron, R.
000004444 700__ $$aHatzidimitriou, D.
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000004444 700__ $$aHaywood, M.
000004444 700__ $$aHeiter, U.
000004444 700__ $$aHelmi, A.
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000004444 700__ $$aHolland, G.
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000004444 700__ $$aHypki, A.
000004444 700__ $$aIcardi, V.
000004444 700__ $$aJanßen, K.
000004444 700__ $$aJevardat de Fombelle, G.
000004444 700__ $$aJonker, P. G.
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000004444 700__ $$aKordopatis, G.
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000004444 700__ $$aKoubsky, P.
000004444 700__ $$aLambert, S.
000004444 700__ $$aLanza, A. F.
000004444 700__ $$aLasne, Y.
000004444 700__ $$aLavigne, J. -B.
000004444 700__ $$aLe Fustec, Y.
000004444 700__ $$aLe Poncin-Lafitte, C.
000004444 700__ $$aLebreton, Y.
000004444 700__ $$aLeccia, S.
000004444 700__ $$aLeclerc, N.
000004444 700__ $$aLecoeur-Taibi, I.
000004444 700__ $$aLenhardt, H.
000004444 700__ $$aLeroux, F.
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000004444 700__ $$aLicata, E.
000004444 700__ $$aLindstrøm, H. E. P.
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000004444 700__ $$aLivanou, E.
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000004444 700__ $$aLópez, M.
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000004444 700__ $$aMarchant, J. M.
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000004444 700__ $$aMary, N.
000004444 700__ $$aMassari, D.
000004444 700__ $$aMatijevič, G.
000004444 700__ $$aMcMillan, P. J.
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000004444 700__ $$aMichalik, D.
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000004444 700__ $$aMontegriffo, P.
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000004444 700__ $$aMorgenthaler, S.
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000004444 700__ $$aMulone, A. F.
000004444 700__ $$aMuraveva, T.
000004444 700__ $$aMusella, I.
000004444 700__ $$aNelemans, G.
000004444 700__ $$aNicastro, L.
000004444 700__ $$aNoval, L.
000004444 700__ $$aO'Mullane, W.
000004444 700__ $$aOrdénovic, C.
000004444 700__ $$aOrdóñez-Blanco, D.
000004444 700__ $$aOsborne, P.
000004444 700__ $$aPagani, C.
000004444 700__ $$aPagano, I.
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000004444 700__ $$aPawlak, M.
000004444 700__ $$aPiersimoni, A. M.
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000004444 700__ $$aRambaux, N.
000004444 700__ $$aRamos-Lerate, M.
000004444 700__ $$aRegibo, S.
000004444 700__ $$aReylé, C.
000004444 700__ $$aRiclet, F.
000004444 700__ $$aRipepi, V.
000004444 700__ $$aRiva, A.
000004444 700__ $$aRivard, A.
000004444 700__ $$aRixon, G.
000004444 700__ $$aRoegiers, T.
000004444 700__ $$aRoelens, M.
000004444 700__ $$aRomero-Gómez, M.
000004444 700__ $$aRowell, N.
000004444 700__ $$aRoyer, F.
000004444 700__ $$aRuiz-Dern, L.
000004444 700__ $$aSadowski, G.
000004444 700__ $$aSagristà Sellés, T.
000004444 700__ $$aSahlmann, J.
000004444 700__ $$aSalgado, J.
000004444 700__ $$aSalguero, E.
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000004444 700__ $$aSchultheis, M.
000004444 700__ $$aSciacca, E.
000004444 700__ $$aSegol, M.
000004444 700__ $$aSegovia, J. C.
000004444 700__ $$aSégransan, D.
000004444 700__ $$aShih, I. -C.
000004444 700__ $$aSiltala, L.
000004444 700__ $$aSilva, A. F.
000004444 700__ $$aSmart, R. L.
000004444 700__ $$aSmith, K. W.
000004444 700__ $$aSolano, E.
000004444 700__ $$aSolitro, F.
000004444 700__ $$aSordo, R.
000004444 700__ $$aSoria Nieto, S.
000004444 700__ $$aSouchay, J.
000004444 700__ $$aSpagna, A.
000004444 700__ $$aSpoto, F.
000004444 700__ $$aStampa, U.
000004444 700__ $$aSteele, I. A.
000004444 700__ $$aSteidelmüller, H.
000004444 700__ $$aStephenson, C. A.
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000004444 700__ $$aSuess, F. F.
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000004444 700__ $$aSzegedi-Elek, E.
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000004444 700__ $$aTaris, F.
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000004444 700__ $$aTerrett, D.
000004444 700__ $$aTeyssandier, P.
000004444 700__ $$aThuillot, W.
000004444 700__ $$aTitarenko, A.
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000004444 700__ $$aTuron, C.
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000004444 700__ $$aUzzi, S.
000004444 700__ $$aVaillant, M.
000004444 700__ $$aValentini, G.
000004444 700__ $$aValette, V.
000004444 700__ $$avan Elteren, A.
000004444 700__ $$aVan Hemelryck, E.
000004444 700__ $$avan Leeuwen, M.
000004444 700__ $$aVaschetto, M.
000004444 700__ $$aVecchiato, A.
000004444 700__ $$aVeljanoski, J.
000004444 700__ $$aViala, Y.
000004444 700__ $$aVicente, D.
000004444 700__ $$aVogt, S.
000004444 700__ $$avon Essen, C.
000004444 700__ $$aVoss, H.
000004444 700__ $$aVotruba, V.
000004444 700__ $$aVoutsinas, S.
000004444 700__ $$aWalmsley, G.
000004444 700__ $$aWeiler, M.
000004444 700__ $$aWertz, O.
000004444 700__ $$aWevers, T.
000004444 700__ $$aWyrzykowski, Ł.
000004444 700__ $$aYoldas, A.
000004444 700__ $$aŽerjal, M.
000004444 700__ $$aZiaeepour, H.
000004444 700__ $$aZorec, J.
000004444 700__ $$aZschocke, S.
000004444 700__ $$aZucker, S.
000004444 700__ $$aZurbach, C.
000004444 700__ $$aZwitter, T.
000004444 773__ $$cA110$$pAstronomy & Astrophysics$$v623$$y2019
000004444 8560_ $$fthierry.pauwels@observatoire.be
000004444 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2019A%26A...623A.110G/abstract
000004444 85642 $$ahttp://https://www.aanda.org
000004444 85642 $$ahttp://cdsarc.u-strasbg.fr
000004444 85642 $$ahttp://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/A110
000004444 905__ $$apublished in
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