J/A+A/693/A28ivo://CDS.VizieR/J/A+A/693/A28doi:10.26093/cds/vizier.36930028CDSAlbarracin R.Zoccali M.Olivares Carvajal J.Rojas-Arriagada A.,Minniti J.H.Catelan M.De Leo M.Gran F.Contreras Ramos R.,Valenzuela Navarro A.Salvo-Guajardo C.2025-02-24T20:02:22Z2024-12-24T09:36:34ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyvariable-starsphotometryvisible-astronomyinfrared-astronomyproper-motionsstellar-distanceThe structure and kinematics of the Milky Way disk are largely inferred from the solar vicinity. To gain a comprehensive understanding, it is essential to find reliable tracers in less-explored regions like the bulge and the far side of the disk. Mira variables, which are well-studied and bright standard candles, offer an excellent opportunity to trace intermediate and old populations in these complex regions. We aim to isolate a clean sample of Miras in the Vista Variables in the Via Lactea survey using Gaussian process algorithms. This sample will be used to study intermediate and old age populations in the Galactic bulge and far disk. Near- and mid-infrared time-series photometry were processed using Gaussian Process algorithms to identify Mira variables and model their light curves. We calibrated selection criteria with a visually inspected sample to create a high-purity sample of Miras, integrating multi-band photometry and kinematic data from proper motions. We present a catalog of 3602 Mira variables. By analyzing photometry, we classify them by O-rich or C-rich surface chemistry and derive selective-to-total extinction ratios of AKs/E(J-Ks)=0.471+/-0.01 and AKs/E(H-Ks)=1.320+/-0.020. Using the Mira period-age relation, we find evidence supporting the inside-out formation of the Milky Way disk. The distribution of proper motions and distances aligns with the Galactic rotation curve and disk kinematics. We extend the rotation curve up to RGC~17kpc and find no strong evidence of the nuclear stellar disk in our Mira sample. This study constitutes the largest catalog of variable stars on the far side of the Galactic disk to date.2025A&A...693A..28Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/693/A28CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : 2MASS All-Sky Extended Source Catalog (XSC)II/328 : AllWISE Data Release (Cutri+ 2013)II/376 : VISTA Variable in the Via Lactea Survey (VVV) DR4.2J/A+A/684/A214 : Photometry & proper motion cat. in NSD region (Zoccali+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/693/A28https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/693/A28http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/693/A28https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/693/A28https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/693/A28http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/693/A28GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/693/A28/tabled1 (Observational parameters of the Miras in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/693/A28/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/693/A28/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/693/A28/tabled1?GETtext/xml+votable180.050000true272.677202-20.4166340.0055555555555555564/2653 5/7182 7201-7203 7206-7209 7212-7213 7218 7224-7225 7227-7229 7272 10557 10594-10595 10599 10609-10611 10621 6/28686 28705-28706 28708 28713-28714 28717-28719 28723 28734 28758 28763-28765 28776-28778 28782-28785 28787 28789 28792 28794 28799-28800 28802-28803 28817-28819 28821-28823 28840 28842 28844 28846-28847 28856-28857 28859-28862 28864 28866 28869 28876 28878-28879 28885-28886 28889-28891 28894-28895 28905-28906 28920-28921 28923-28925 28927 28962 28969 29066 29096-29098 29184 29205 29248 29252 29254 29264 29267-29268 42203 42206-42207 42225 42227 42335 42363 42365-42367 42375 42386-42387 42390-42394 42400-42401 42434-42435 42469 42471 42479-42482 42490 42493 42495https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/693/A28?format=asciiOpticalInfrareddefaultJ/A+A/693/A28/tabled1Observational parameters of the Miras in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID of the starmeta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lon_DE.icrsDeclination (ICRS) at Epoch=J2000. (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.decindexed_RA.icrsRight ascension (ICRS) at Epoch=J2000. (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.raindexedGLATGalactic latitudedegpos.galactic.latPerPerioddtime.periodfloatJmag? J band model magnitudemagphot.mag;meta.modelledfloatnullablee_Jmag? J band magnitude errormagstat.error;phot.magfloatnullableHmag? H band model magnitudemagphot.mag;meta.modelledfloatnullablee_Hmag? H band magnitude errormagstat.error;phot.magfloatnullableKsmagKs band model magnitudemagphot.mag;meta.modelledfloate_KsmagKs band magnitude errormagstat.error;phot.magfloatW1mag? W1 band model magnitudemagphot.mag;meta.modelledfloatnullablee_W1mag? W1 band magnitude errormagstat.error;phot.magfloatnullableW2mag? W2 band model magnitudemagphot.mag;meta.modelledfloatnullablee_W2mag? W2 band magnitude errormagstat.error;phot.magfloatnullableW3mag? W3 band model magnitudemagphot.mag;meta.modelledfloatnullablee_W3mag? W3 band magnitude errormagstat.error;phot.magfloatnullableW4mag? W4 band model magnitudemagphot.mag;meta.modelledfloatnullablee_W4mag? W4 band mag errormagstat.error;phot.magfloatnullableType[COF] Type of the starsrc.classcharpmGLON? Longitude proper motionmas/yrpos.pm;pos.earth.lonfloatnullablee_pmGLON? Longitude proper motion errormas/yrstat.errorfloatnullablepmGLAT? Latitude proper motionmas/yrpos.pm;pos.earth.latfloatnullablee_pmGLAT? Latitude proper motion errormas/yrstat.errorfloatnullableDist? Distance to the starkpcpos.distancefloatnullablee_Dist? Distance errorkpcstat.errorfloatnullableMinMaxKsMinimum and maximum Ks magnitudemagsrc.var.amplitudefloat