J/AJ/126/197ivo://CDS.VizieR/J/AJ/126/197doi:10.26093/cds/vizier.51260197CDSDall'Ora M.Ripepi V.Caputo F.Castellani V.Bono G.Smith H.A.,Brocato E.Buonanno R.Castellani M.Corsi C.E.Marconi M.Monelli M.,Nonino M.Pulone L.Walker A.R.2023-04-06T16:50:57Z2012-02-27T15:04:00ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyWide-band photometryvariable-starsWe present new BV time series data of the Carina dwarf spheroidal galaxy (dSph). Current data cover an area of ~0.3deg^2^ around the center of the galaxy and allow us to identify 92 variables. Among them 75 are RR Lyrae stars, 15 are bona fide anomalous Cepheids, one might be a Galactic field RR Lyrae star, and one is located along the Carina red giant branch. Expanding upon the seminal photographic investigation by Saha, Monet, & Seitzer (1986AJ.....92..302S) we supply, for the first time, accurate estimates of their pulsation parameters (periods, amplitudes, mean magnitudes, and colors) on the basis of CCD photometry. Approximately 50% of both RR Lyrae stars and anomalous Cepheids are new identifications. Among the RR Lyrae sample, six objects are new candidate double-mode (RRd) variables. On the basis of their pulsation properties we estimate that two variables (V158, V182) are about 50% more massive than typical RR Lyrae stars, while the bulk of the anomalous Cepheids are roughly a factor of 2 more massive than fundamental-mode (RRab) RR Lyrae stars.2003AJ....126..197Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/126/197CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2012)J/AJ/131/895 : Stars in the Carina dwarf spheroidal galaxy (Koch+, 2006)J/ApJ/649/201 : Velocities and Washington photometry in Carina dSph (Munoz+,J/AJ/130/2677 : Stars in the Carina dSph galaxy field (Majewski+, 2005)J/AJ/115/1856 : Dwarf Cepheids in Carina (Mateo+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/126/197https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/126/197http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/126/197https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/126/197https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/126/197http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/126/197GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/126/197/table1 (Catalog of the variable stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/197/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/197/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/197/table1?GETtext/xml+votable180.050000true100.8288333-50.89152780.0055555555555555566/39094 39097 39100https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/126/197?format=asciiOpticaldefaultJ/AJ/126/197/table1Catalog of the variable starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCCD[50/57] Chip number of the CCD camerameta.id;instrint[SMS86]Object identification (VNNN) (G1)meta.id;meta.maincharprimaryPSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainN86Notes from Saha, Monet & Seitzer (1986AJ.....92..302S) (1)pos.eq.deccharNotesThis work's notes (1)meta.notecharSimbadSimbad column added by the CDScharJ/AJ/126/197/table3Pulsation properties of variable starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCCD[50/57] Chip number of the CCD camerameta.id;instrint[SMS86]Object identification (VNNN) (G1)meta.id;meta.maincharn_[SMS86]Additional notes on [SMS86] (3)meta.notecharTypeVariable classification: AC=Anomalous Cepheid, ab=RRab, c=RRc, d=RRdmeta.code.classcharLCDisplay the BV light curvesmeta.ref.urlcharEpochHelicentric Julian Date epoch minus 2451540.0dtime.epoch;stat.fit.omcfloatPerPerioddtime.periodfloatu_Per[u] Indicates an uncertainty in Per (2)meta.code.errorcharLogPLogarithm of the Periodlog(d)time.periodfloatVmagMMagnitude-averaged V-band magnitudemagphot.mag;em.opt.VfloatVmagIIntensity-averaged V-band magnitudemagphot.mag;em.opt.VfloatBmagMMagnitude-averaged B-band magnitudemagphot.mag;em.opt.BfloatBmagIIntensity-averaged B-band magnitudemagphot.mag;em.opt.BfloatB-VThe intensity-averaged (B-V) color indexmagphot.color;em.opt.B;em.opt.VfloatVampThe V-band amplitudemagphot.mag;em.opt.VfloatBampThe B-band amplitudemagphot.mag;em.opt.BfloatJ/AJ/126/197/table2Photometry of the Carina dSph variable starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SMS86]Object identification (VNNN) (G1)meta.id;meta.maincharHJD.B? Heliocentric Julian Date for Bmagdtime.epochdoublenullableBmag? The B-band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Error in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableHJD.V? Heliocentric Julian Date for Vmagdtime.epochdoublenullableVmag? The V-band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Error in Vmagmagstat.error;phot.mag;em.opt.Vfloatnullable