Gaia CollaborationEyer, L.L.EyerRimoldini, L.L.RimoldiniAudard, M.M.AudardAnderson, R. I.R. I.AndersonNienartowicz, K.K.NienartowiczGlass, F.F.GlassMarchal, O.O.MarchalGrenon, M.M.GrenonMowlavi, N.N.MowlaviHoll, B.B.HollCantat-Gaudin, T.T.Cantat-GaudinCarballo, R.R.CarballoCarlucci, T.T.CarlucciCarrasco, J. M.J. M.CarrascoCasamiquela, L.L.CasamiquelaCASTELLANI, MarcoMarcoCASTELLANICastro-Ginard, A.A.Castro-GinardCharlot, P.P.CharlotChemin, L.L.Cheminde Bruijne, J. H. J.J. H. J.de BruijneKorn, A. J.A. J.KornChiavassa, A.A.ChiavassaCocozza, G.G.CocozzaCostigan, G.G.CostiganCowell, S.S.CowellCrifo, F.F.CrifoCROSTA, MariateresaMariateresaCROSTACrowley, C.C.CrowleyCuypers, J.J.CuypersDafonte, C.C.DafonteDamerdji, Y.Y.DamerdjiKrone-Martins, A.A.Krone-MartinsBabusiaux, C.C.BabusiauxDapergolas, A.A.DapergolasDavid, P.P.DavidDavid, M.M.Davidde Laverny, P.P.de LavernyDE LUISE, FioreFioreDE LUISEDe March, R.R.De MarchDE MARTINO, DomitillaDomitillaDE MARTINOde Souza, R.R.de Souzade Torres, A.A.de TorresLanzafame, Alessandro CarmeloAlessandro CarmeloLanzafameDebosscher, J.J.DebosscherBailer-Jones, C. A. L.C. A. L.Bailer-Jonesdel Pozo, E.E.del PozoDelbo, M.M.DelboDelgado, A.A.DelgadoDelgado, H. E.H. E.DelgadoDiakite, S.S.DiakiteDiener, C.C.DienerDISTEFANO, Elisa Maria CarmelaElisa Maria CarmelaDISTEFANODolding, C.C.DoldingLebzelter, T.T.LebzelterDrazinos, P.P.DrazinosDurán, J.J.DuránBiermann, M.M.BiermannEdvardsson, B.B.EdvardssonEnke, H.H.EnkeEriksson, K.K.ErikssonEsquej, P.P.EsquejEynard Bontemps, G.G.Eynard BontempsFabre, C.C.FabreFABRIZIO, MicheleMicheleFABRIZIOLöffler, W.W.LöfflerFaigler, S.S.FaiglerFalcão, A. J.A. J.FalcãoFarràs Casas, M.M.Farràs CasasJansen, F.F.JansenFederici, L.L.FedericiFedorets, G.G.FedoretsFernique, P.P.FerniqueFigueras, F.F.FiguerasFilippi, F.F.FilippiFindeisen, K.K.FindeisenManteiga, M.M.ManteigaFonti, A.A.FontiFraile, E.E.FraileFraser, M.M.FraserFrézouls, B.B.FrézoulsJordi, C.C.JordiGai, M.M.GaiGALLETI, SILVIASILVIAGALLETIGarabato, D.D.GarabatoGarcía-Sedano, F.F.García-SedanoGAROFALO, AlessiaAlessiaGAROFALOMARRESE, Paola MariaPaola MariaMARRESEGarralda, N.N.GarraldaGavel, A.A.GavelGavras, P.P.GavrasGerssen, J.J.GerssenGeyer, R.R.GeyerKlioner, S. A.S. A.KlionerGIACOBBE, PaoloPaoloGIACOBBEGilmore, G.G.GilmoreGirona, S.S.GironaGiuffrida, G.G.GiuffridaMartín-Fleitas, J. M.J. M.Martín-FleitasGomes, M.M.GomesGranvik, M.M.GranvikGueguen, A.A.GueguenGuerrier, A.A.GuerrierGuiraud, J.J.GuiraudGutiérrez-Sánchez, R.R.Gutiérrez-SánchezLammers, U.U.LammersHaigron, R.R.HaigronHatzidimitriou, D.D.HatzidimitriouHauser, M.M.HauserMoitinho, A.A.MoitinhoHaywood, M.M.HaywoodHeiter, U.U.HeiterHelmi, A.A.HelmiHeu, J.J.HeuHilger, T.T.HilgerHobbs, D.D.HobbsHofmann, W.W.HofmannLindegren, L.L.LindegrenHolland, G.G.HollandHuckle, H. E.H. E.HuckleMora, A.A.MoraHypki, A.A.HypkiIcardi, V.V.IcardiJanßen, K.K.JanßenJevardat de Fombelle, G.G.Jevardat de FombelleJonker, P. G.P. G.JonkerJuhász, Á. L.Á. L.JuhászJulbe, F.F.JulbeKarampelas, A.A.KarampelasLuri, X.X.LuriKewley, A.A.KewleyCLEMENTINI, GisellaGisellaCLEMENTINIKlar, J.J.KlarKochoska, A.A.KochoskaKohley, R.R.KohleyKolenberg, K.K.KolenbergKontizas, M.M.KontizasKontizas, E.E.KontizasKoposov, S. E.S. E.KoposovKordopatis, G.G.KordopatisKostrzewa-Rutkowska, Z.Z.Kostrzewa-RutkowskaMignard, F.F.MignardMuinonen, K.K.MuinonenKoubsky, P.P.KoubskyLambert, S.S.LambertLANZA, Antonino FrancescoAntonino FrancescoLANZALasne, Y.Y.LasneLavigne, J. -B.J. -B.LavigneLe Fustec, Y.Y.Le FustecLe Poncin-Lafitte, C.C.Le Poncin-LafitteLebreton, Y.Y.LebretonLECCIA, SilvioSilvioLECCIALeclerc, N.N.LeclercOsinde, J.J.OsindePanem, C.C.PanemLecoeur-Taibi, I.I.Lecoeur-TaibiLenhardt, H.H.LenhardtLeroux, F.F.LerouxLiao, S.S.LiaoLICATA, ENRICOENRICOLICATALindstrøm, H. E. P.H. E. P.LindstrømLister, T. A.T. A.ListerLivanou, E.E.LivanouLobel, A.A.LobelPANCINO, ELENAELENAPANCINOLópez, M.M.LópezPourbaix, D.D.PourbaixLorenz, D.D.LorenzManagau, S.S.ManagauMann, R. G.R. G.MannMantelet, G.G.ManteletMarchant, J. M.J. M.MarchantMARCONI, MarcellaMarcellaMARCONIMARINONI, SILVIASILVIAMARINONIMarschalkó, G.G.MarschalkóPauwels, T.T.PauwelsMarshall, D. J.D. J.MarshallMartino, M.M.MartinoRANDICH, Maria SofiaMaria SofiaRANDICHMarton, G.G.MartonMary, N.N.MaryMassari, D.D.MassariMatijevič, G.G.MatijevičMcMillan, P. J.P. J.McMillanMESSINA, SergioSergioMESSINAMichalik, D.D.MichalikPetit, J. -M.J. -M.PetitMillar, N. R.N. R.MillarMolina, D.D.MolinaMOLINARO, RobertoRobertoMOLINAROSartoretti, P.P.SartorettiMolnár, L.L.MolnárMONTEGRIFFO, PaoloPaoloMONTEGRIFFOMor, R.R.MorMORBIDELLI, RobertoRobertoMORBIDELLIMorel, T.T.MorelMorgenthaler, S.S.MorgenthalerRecio-Blanco, A.A.Recio-BlancoMorris, D.D.MorrisMulone, A. F.A. F.MuloneMuraveva, TatianaTatianaMuravevaMUSELLA, ILARIAILARIAMUSELLASiddiqui, H. I.H. I.SiddiquiNelemans, G.G.NelemansNICASTRO, LUCIANOLUCIANONICASTRONoval, L.L.NovalO'Mullane, W.W.O'MullaneOrdénovic, C.C.OrdénovicRichards, P. J.P. J.RichardsOrdóñez-Blanco, D.D.Ordóñez-BlancoOsborne, P.P.OsbornePagani, C.C.PaganiPAGANO, IsabellaIsabellaPAGANOPailler, F.F.PaillerSoubiran, C.C.SoubiranPalacin, H.H.PalacinPalaversa, L.L.PalaversaPanahi, A.A.PanahiPawlak, M.M.PawlakRobin, A. C.A. C.RobinPIERSIMONI, Anna MarinaAnna MarinaPIERSIMONIPineau, F. -X.F. -X.PineauPlachy, E.E.PlachyPlum, G.G.PlumPoggio, EloisaEloisaPoggioPoujoulet, E.E.Poujouletvan Leeuwen, F.F.van LeeuwenPrša, A.A.PršaPULONE, LuigiLuigiPULONERacero, E.E.RaceroSarro, L. M.L. M.SarroRagaini, S.S.RagainiRambaux, N.N.RambauxRamos-Lerate, M.M.Ramos-LerateRegibo, S.S.RegiboReylé, C.C.ReyléRiclet, F.F.RicletRIPEPI, VincenzoVincenzoRIPEPIWalton, N. A.N. A.WaltonRIVA, AlbertoAlbertoRIVARivard, A.A.RivardSiopis, C.C.SiopisRixon, G.G.RixonRoegiers, T.T.RoegiersRoelens, M.M.RoelensRomero-Gómez, M.M.Romero-GómezRowell, N.N.RowellRoyer, F.F.RoyerRuiz-Dern, L.L.Ruiz-DernSadowski, G.G.SadowskiArenou, F.F.ArenouSagristà Sellés, T.T.Sagristà SellésAerts, C.C.AertsSahlmann, J.J.SahlmannSalgado, J.J.SalgadoSalguero, E.E.SalgueroSANNA, NicolettaNicolettaSANNASantana-Ros, T.T.Santana-RosSARASSO, Maria MargheritaMaria MargheritaSARASSOSavietto, H.H.SaviettoSchultheis, M.M.SchultheisSCIACCA, EvaEvaSCIACCABastian, U.U.BastianSmith, M.M.SmithSegol, M.M.SegolSegovia, J. C.J. C.SegoviaSégransan, D.D.SégransanShih, I. -C.I. -C.ShihSiltala, L.L.SiltalaSilva, A. F.A. F.SilvaSMART, Richard LaurenceRichard LaurenceSMARTSmith, K. W.K. W.SmithSolano, E.E.SolanoSolitro, F.F.SolitroSOZZETTI, AlessandroAlessandroSOZZETTICropper, M.M.CropperSORDO, ROSANNAROSANNASORDOSoria Nieto, S.S.Soria NietoSouchay, J.J.SouchaySPAGNA, AlessandroAlessandroSPAGNASpoto, F.F.SpotoStampa, U.U.StampaSteele, I. A.I. A.SteeleSteidelmüller, H.H.SteidelmüllerStephenson, C. A.C. A.StephensonSüveges, M.M.SüvegesStoev, H.H.StoevDRIMMEL, RonaldRonaldDRIMMELSuess, F. F.F. F.SuessSurdej, J.J.SurdejSzegedi-Elek, E.E.Szegedi-ElekTapiador, D.D.TapiadorTaris, F.F.TarisTauran, G.G.TauranTaylor, M. B.M. B.TaylorTeixeira, R.R.TeixeiraTorra, J.J.TorraTerrett, D.D.TerrettTeyssandier, P.P.TeyssandierKatz, D.D.KatzThuillot, W.W.ThuillotTitarenko, A.A.TitarenkoTorra Clotet, F.F.Torra ClotetTuron, C.C.TuronUlla, A.A.UllaUtrilla, E.E.UtrillaUzzi, S.S.Uzzivan Reeven, W.W.van ReevenVaillant, M.M.VaillantVALENTINI, GaetanoGaetanoVALENTINIValette, V.V.ValetteGAI, MarioMarioGAIvan Elteren, A.A.van ElterenVan Hemelryck, E.E.Van Hemelryckvan Leeuwen, M.M.van LeeuwenVaschetto, M.M.VaschettoVECCHIATO, AlbertoAlbertoVECCHIATOVeljanoski, J.J.VeljanoskiABBAS, UmmiUmmiABBASViala, Y.Y.VialaVicente, D.D.VicenteVogt, S.S.Vogtvon Essen, C.C.von EssenBakker, J.J.BakkerVoss, H.H.VossVotruba, V.V.VotrubaVoutsinas, S.S.VoutsinasWalmsley, G.G.WalmsleyWeiler, M.M.WeilerAbreu Aramburu, A.A.Abreu AramburuWertz, O.O.WertzWevers, T.T.WeversWyrzykowski, Ł.Ł.WyrzykowskiYoldas, A.A.YoldasŽerjal, M.M.ŽerjalCacciari, C.C.CacciariZiaeepour, H.H.ZiaeepourZorec, J.J.ZorecZschocke, S.S.ZschockeZucker, S.S.ZuckerAccart, S.S.AccartZurbach, C.C.ZurbachZwitter, T.T.ZwitterCastañeda, J.J.CastañedaChaoul, L.L.ChaoulCheek, N.N.CheekDe Angeli, F.F.De AngeliFabricius, C.C.FabriciusGuerra, R.R.GuerraMasana, E.E.MasanaMessineo, R.R.MessineoALTAVILLA, GIUSEPPEGIUSEPPEALTAVILLAPanuzzo, P.P.PanuzzoPortell, J.J.PortellRiello, M.M.RielloSeabroke, G. M.G. M.SeabrokeTanga, P.P.TangaThévenin, F.F.ThéveninGracia-Abril, G.G.Gracia-AbrilCOMORETTO, GiovanniGiovanniCOMORETTOGarcia-Reinaldos, M.M.Garcia-ReinaldosTeyssier, D.D.TeyssierÁlvarez, M. A.M. A.ÁlvarezAltmann, M.M.AltmannAndrae, R.R.AndraeBellas-Velidis, I.I.Bellas-VelidisBenson, K.K.BensonBerthier, J.J.BerthierBlomme, R.R.BlommeBurgess, P.P.BurgessBusso, G.G.BussoCarry, B.B.CarryCELLINO, AlbertoAlbertoCELLINOMazeh, T.T.MazehClotet, M.M.ClotetCreevey, O.O.CreeveyDavidson, M.M.DavidsonDe Ridder, J.J.De RidderDelchambre, L.L.DelchambreDELL'ORO, AldoAldoDELL'ORODucourant, C.C.DucourantFernández-Hernández, J.J.Fernández-HernándezFouesneau, M.M.FouesneauFrémat, Y.Y.FrématAlvarez, R.R.AlvarezGalluccio, L.L.GalluccioGarcía-Torres, M.M.García-TorresGonzález-Núñez, J.J.González-NúñezGonzález-Vidal, J. J.J. J.González-VidalGosset, E.E.GossetGuy, L. P.L. P.GuyHalbwachs, J. -L.J. -L.HalbwachsHambly, N. C.N. C.HamblyHarrison, D. L.D. L.HarrisonHernández, J.J.HernándezAlves, J.J.AlvesHestroffer, D.D.HestrofferHodgkin, S. T.S. T.HodgkinHutton, A.A.HuttonJasniewicz, G.G.JasniewiczJean-Antoine-Piccolo, A.A.Jean-Antoine-PiccoloJordan, S.S.JordanAndrei, A. H.A. H.AndreiAnglada Varela, E.E.Anglada VarelaAntiche, E.E.AnticheAntoja, T.T.AntojaArcay, B.B.ArcayAstraatmadja, T. L.T. L.AstraatmadjaBach, N.N.BachBaker, S. G.S. G.BakerEvans, D. W.D. W.EvansBalaguer-Núñez, L.L.Balaguer-NúñezBalm, P.P.BalmBarache, C.C.BaracheBarata, C.C.BarataBarbato, D.D.BarbatoBarblan, F.F.BarblanBarklem, P. S.P. S.BarklemBarrado, D.D.BarradoBarros, M.M.BarrosBarstow, M. A.M. A.BarstowSzabados, L.L.SzabadosBartholomé Muñoz, S.S.Bartholomé MuñozBassilana, J. -L.J. -L.BassilanaBECCIANI, UgoUgoBECCIANIBELLAZZINI, MicheleMicheleBELLAZZINIBerihuete, A.A.BerihueteBERTONE, StefanoStefanoBERTONEBianchi, L.L.BianchiBienaymé, O.O.BienayméBlanco-Cuaresma, S.S.Blanco-CuaresmaBoch, T.T.BochBrown, A. G. A.A. G. A.BrownBOECHE, CORRADOCORRADOBOECHEBombrun, A.A.BombrunBorrachero, R.R.BorracheroBossini, D.D.BossiniBouquillon, S.S.BouquillonBourda, G.G.BourdaBRAGAGLIA, AngelaAngelaBRAGAGLIABramante, L.L.BramanteBreddels, M. A.M. A.BreddelsBressan, A.A.BressanVALLENARI, AntonellaAntonellaVALLENARIBrouillet, N.N.BrouilletBrüsemeister, T.T.BrüsemeisterBrugaletta, ElisaElisaBrugalettaBUCCIARELLI, BeatriceBeatriceBUCCIARELLIBurlacu, A.A.BurlacuBUSONERO, DeborahDeborahBUSONEROButkevich, A. G.A. G.ButkevichBUZZI, RAFFAELLARAFFAELLABUZZICaffau, E.E.CaffauCancelliere, R.R.CancellierePrusti, T.T.PrustiCannizzaro, G.G.Cannizzaro2021-01-152021-01-1520190004-6361http://hdl.handle.net/20.500.12386/29791Context. 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/A110STAMPAenArticle10.1051/0004-6361/2018333042-s2.0-85058841219000461008700002https://www.aanda.org/articles/aa/full_html/2019/03/aa33304-18/aa33304-18.html2019A&A...623A.110GFIS/05 - ASTRONOMIA E ASTROFISICAScienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation