J/A+A/623/A110ivo://CDS.VizieR/J/A+A/623/A110doi:10.26093/cds/vizier.36230110CDSGaia Collaboration,Eyer L.Rimoldini L.Audard M.Anderson R.I.Nienartowicz K.Glass F.,Marchal O.Grenon M.Mowlavi N.Holl B.Clementini G.Aerts C.,Mazeh T.Evans D.W.Szabados L.Brown A.G.A.Vallenari A.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 S.Sartoretti P.Siddiqui H.I.,Soubiran C.van Leeuwen F.Walton N.A.Arenou F.Bastian U.Cropper M.,Drimmel R.Katz D.Lattanzi M.G.Bakker J.Cacciari C.Castaneda 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.,Thevenin F.Gracia-Abril G.Comoretto G.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 A.,Clotet M.Creevey O.Davidson M.De Ridder J.Delchambre L.,Dell'Oro A.Ducourant C.Fernandez-Hernandez J.Fouesneau M.Fremat Y.,Galluccio L.Garcia-Torres M.Gonzalez-Nunez J.Gonzalez-Vidal J.J.,Gosset E.Guy L.P.Halbwachs J.-L.Hambly N.C.Harrison D.L.,Hernandez J.Hestroer D.Hodgkin S.T.Hutton A.Jasniewicz G.,Jean-Antoine-Piccolo A.Jordan S.Korn A.J.Krone-Martins A.,Lanzafame A.C.Lebzelter T.Loeer W.Manteiga M.Marrese P.M.,Martin-Fleitas J.M.Moitinho A.Mora A.Muinonen K.Osinde J.,Pancino E.Pauwels T.Petit J.-M.Recio-Blanco A.Richards P.J.,Robin A.C.Sarro L.M.Siopis C.Smith M.Sozzetti A.Sueveges M.,Torra J.van Reeven W.Abbas U.Abreu Aramburu A.Accart S.,Altavilla G.Alvarez 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-Nunez L.Balm P.Barache C.Barata C.,Barbato D.Barblan F.Barklem P.S.Barrado D.Barros M.Barstow M.A.,Bartholome Munoz S.Bassilana J.-L.Becciani U.Bellazzini M.,Berihuete A.Bertone S.Bianchi L.Bienayme O.Blanco-Cuaresma S.,Boch T.Boeche C.Bombrun A.Borrachero R.Bossini D.Bouquillon S.,Bourda G.Bragaglia A.Bramante L.Breddels M.A.Bressan A.,Brouillet N.Bruesemeister T.Brugaletta E.Bucciarelli B.Burlacu A.,Busonero D.Butkevich A.G.Buzzi R.Caau E.Cancelliere R.,Cannizzaro G.Cantat-Gaudin T.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.Cuypersy J.Dafonte C.Damerdji Y.Dapergolas A.David P.,David M.de Laverny P.De Luise F.De March R.de Martino D.,de Souza R.de Torres A.Debosscher J.del Pozo E.Delbo M.Delgado A.,Delgado H.E.Diakite S.Diener C.Distefano E.Dolding C.Drazinos P.,Duran J.Edvardsson B.Enke H.Eriksson K.Esquej P.,Eynard Bontemps G.Fabre C.Fabrizio M.Faigler S.Falcao A.J.,Farras Casas M.Federici L.Fedorets G.Fernique P.Figueras F.,Filippi F.Findeisen K.Fonti A.Fraile E.Fraser M.Frezouls B.,Gai M.Galleti S.Garabato D.Garcia-Sedano F.Garofalo A.Garralda N.,Gavel A.Gavras P.Gerssen J.Geyer R.Giacobbe P.Gilmore G.,Girona S.Giurida G.Gomes M.Granvik M.Gueguen A.Guerrier A.,Guiraud J.Gutierrez-Sanchez 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.Juhasz A.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.Le Fustec Y.,Le Poncin-Lafitte C.Lebreton Y.Leccia S.Leclerc N.Lecoeur-Taibi I.,Lenhardt H.Leroux F.Liao S.Licata E.Lindstrom H.E.P.Lister T.A.,Livanou E.Lobel A.Lopez M.Lorenz D.Managau S.Mann R.G.,Mantelet G.Marchant J.M.Marconi M.Marinoni S.Marschalko G.,Marshall D.J.Martino M.Marton G.Mary N.Massari D.Matijevic G.,McMillan P.J.Messina S.Michalik D.Millar N.R.Molina D.Molinaro R.,Molnar L.Montegrio P.Mor R.Morbidelli R.Morel T.Morgenthaler S.,Morris D.Mulone A.F.Muraveva T.Musella I.Nelemans G.Nicastro L.,Noval L.O'Mullane W.Ordenovic C.Ordonez-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.Prsa A.Pulone L.Racero E.Ragaini S.Rambaux N.,Ramos-Lerate M.Regibo S.Reyle C.Riclet F.Ripepi V.Riva A.,Rivard A.Rixon G.Roegiers T.Roelens M.Romero-Gomez M.Rowell N.,Royer F.Ruiz-Dern L.Sadowski G.Sagrista Selles T.Sahlmann J.,Salgado J.Salguero E.Sanna N.Santana-Ros T.Sarasso M.Savietto H.,Schultheis M.Sciacca E.Segol M.Segovia J.C.Segransan D.Shih I-C.,Siltala L.Silva A.F.Smart R.L.Smith K.W.Solano E.Solitro F.,Sordo R.Soria Nieto S.Souchay J.Spagna A.Spoto F.Stampa U.,Steele I.A.Steidelmueller 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 G.Valette V.van Elteren A.Van Hemelryck E.van Leeuwen M.,Vaschetto M.Vecchiato A.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 L.Yoldas A.Zerjal M.Ziaeepour H.,Zorec J.Zschocke S.Zucker S.Zurbach C.Zwitter T.2019-03-21T11:04:15Z2019-03-13T07:27:50ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysvariable-starsapparent-magnitudeThe ESA Gaia mission provides a unique time-domain survey for more than 1.6 billion sources with G<~21mag. 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. 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. 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. 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.2019A&A...623A.110Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/623/A110CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/623/A110https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/623/A110http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/623/A110https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/623/A110https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/623/A110http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/623/A110GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/623/A110/list (List of Gaia stars with transit light curve)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/623/A110/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/623/A110/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/623/A110/list?GETtext/xml+votable180.050000true104.7848719428558.811650006980.0055555555555555566/557 1164 1535 1817 1848 1947 2573 2686 3041 3202 3279 3541 3703 3931 4020 4303 4658 4828 5369 6759 6962 7046 7122 7340 7503 8449 8693 8947 8980 9099 9425 9635 9791 9880 10012 10118 10539 11352 11485 12052 12514 12627 12729 13618 13657 13682 14038 14238 14272 14452 14591 14641 14702 14843 15110 15340 15430 16114 18239 18344 18817 20036 20176 20181 20286 20369 20819 21099 21154 21222 21534 21567 21950 21994 21997 22043 22069 22400 22464 22635 22745 22890-22891 23633 23653 24090 24462 24503 24630 24744 25213 26157 26645 27609 27655 27686 27749 27887 28978 29048 29094 29097 29100 29221 29338 29873 30459 30477 30548 30560 30833 31018 31121 31295 31576 31997 32119 32198 32228 32236 32247 32296 32321 32507 32512 33013 33064 33487 33498 33822 33856 34278 34371 34951 35181 35749 35851 35933 36038 36241 37299 37320 37357 37362 37425 37489 37574 37656 37672 37782 37857 37866 37868 37895 37914 37923 38000 38015 38026 38040-38041 38125-38126 38128 38164 38166 38264 38292 38594 38665 38713 38745 38783 39191-39192 39215 39334 39352 39383 39596 39789 40509 40614 40683 40687 40885 41031 41214 41437 41464 41503 41550 41562 41737 41895 41954 42119 42169 42174 42228 42282 42347 42547 42653 42825 42890 43018 43039 43053 43067 43075 43136 43333 44042 44136 44946 45609 45846 45927 45987 46134 47216https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/623/A110?format=asciidefaultJ/A+A/623/A110/listList of Gaia stars with transit light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceUnique source identifier (unique within a particular Data Release)meta.id;meta.mainRA_ICRS? Gaia DR2 Barycentric right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainnullableDE_ICRS? Gaia DR2 Barycentric declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainnullableRAJ2000? Gaia DR2 Barycentric right ascension (ICRS) at Ep=2000.0 (added by CDS)degpos.eq.ranullableDEJ2000? Gaia DR2 Barycentric declination (ICRS) at Ep=2000.0 (added by CDS)degpos.eq.decnullableLCLight Curve Plotmeta.ref.urlchar_RA.icrsRight ascension (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexed