J/MNRAS/462/4349ivo://CDS.VizieR/J/MNRAS/462/4349doi:10.26093/cds/vizier.74624349CDSMartinez-vazquez C.E.Stetson P.B.Monelli M.Bernard E.J.,Fiorentino G.Gallart C.Bono G.Cassisi S.Dall'Ora M.Ferraro I.,Iannicola G.Walker A.R.2024-08-16T20:18:47Z2018-06-25T15:12:56ZCDS support team

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

cds-question@unistra.frgalaxiesvariable-starsinfrared-photometryvisible-astronomybroad-band-photometryWe present the identification of 634 variable stars in the Milky Way dwarf spheroidal (dSph) satellite Sculptor based on archival ground-based optical observations spanning ~24yr and covering ~2.5deg^2^. We employed the same methodologies as the 'Homogeneous Photometry' series published by Stetson. In particular, we have identified and characterized one of the largest (536) RR Lyrae samples so far in a Milky Way dSph satellite. We have also detected four Anomalous Cepheids, 23 SX Phoenicis stars, five eclipsing binaries, three field variable stars, three peculiar variable stars located above the horizontal branch - near to the locus of BL Herculis - that we are unable to classify properly. Additionally, we identify 37 long period variables plus 23 probable variable stars, for which the current data do not allow us to determine the period. We report positions and finding charts for all the variable stars, and basic properties (period, amplitude, mean magnitude) and light curves for 574 of them. We discuss the properties of the RR Lyrae stars in the Bailey diagram, which supports the coexistence of subpopulations with different chemical compositions. We estimate the mean mass of Anomalous Cepheids (~1.5M_{sun}_) and SX Phoenicis stars (~1M_{sun}_). We discuss in detail the nature of the former. The connections between the properties of the different families of variable stars are discussed in the context of the star formation history of the Sculptor dSph galaxy.2016MNRAS.462.4349Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/462/4349CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/112/407 : Variable Stars in the Sculptor dwarf galaxy (Kaluzny+, 1995)J/ApJ/842/60 : Variable stars in Logal Group galaxies. III. (Monelli+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/462/4349https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/462/4349http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/462/4349https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/462/4349https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/462/4349http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/462/4349GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/462/4349/param (Parameters of the variable stars on Sculptor dSph ( tables 4, 6, 8-11)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/4349/param?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/4349/param?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/4349/param?GETtext/xml+votable180.050000true13.8375833-33.683750.005555555555555556Cone search capability for table J/MNRAS/462/4349/table12 (Parameters of the candidates variable stars with problems of classification in Sculptor dSph)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/4349/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/4349/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/4349/table12?GETtext/xml+votable180.050000true14.12475-33.93441670.005555555555555556Cone search capability for table J/MNRAS/462/4349/table13 (Parameters of non-variable stars in Sculptor dSph)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/4349/table13?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/4349/table13?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/4349/table13?GETtext/xml+votable180.050000true14.1609583-33.423250.0055555555555555566/35549 35551 35714 35720 357222.367228618189496e-19 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/462/4349?format=asciiOpticalInfrareddefaultJ/MNRAS/462/4349/paramParameters of the variable stars on Sculptor dSph ( tables 4, 6, 8-11AVAmplitude in V bandmagphot.magfloatPerPerioddtime.perioddoubleDEJ2000Declination (J2000)pos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVarVariable typesrc.classcharStarStar name (scl-CEMVNNN)meta.id;meta.maincharn_Star[a] Note on Starmeta.notecharNameOriginal name (G1)meta.idcharANameAlternative name (G1)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainu_Per[: ] Uncertainty flag on Permeta.code.errorchar<Bmag>Mean B magnitudemagphot.mag;em.opt.Bfloat<Vmag>Mean V magnitudemagphot.mag;em.opt.Vfloat<Imag>Mean I magnitudemagphot.mag;em.opt.IfloatABAmplitude in B bandmagphot.magfloatAIAmplitude in I bandmagsrc.var.amplitudefloatQ1[0-5] Quality flag for light curve (G2)meta.code.qualcharQ2[0-1] Quality flag for light curve coverage (G3)meta.code.qualcharTypeVariable typesrc.classcharNoteNotesmeta.notecharLCShow the BVI light curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/462/4349/table12Parameters of the candidates variable stars with problems of classification in Sculptor dSphrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar name (scl-CEMVNNN)meta.id;meta.maincharNameOriginal name (G1)meta.idcharANameAlternative name (G1)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainNoteNotesmeta.notecharLCShow the BVI light curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/462/4349/table13Parameters of non-variable stars in Sculptor dSphSimbadNameSimbad column added by the CDSmeta.idcharNoteNotesmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameOriginal name (G1)meta.id;meta.maincharANameAlternative name (G1)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/MNRAS/462/4349/table2Photometry of the variable stars in Sculptor dSphrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar name (scl-CEMVNNN)meta.id;meta.maincharMHJDB? Modified Julian date for B band (1)dtime.epochdoublenullableBmag? B magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? rms uncertainty on Bmagmagstat.error;phot.magfloatnullableMHJDV? Modified Julian date for V band (1)dtime.epochdoublenullableVmag? V magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.magfloatnullableMHJDI? Modified Julian date for I band (1)dtime.epochdoublenullableImag? I magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? rms uncertainty on Imagmagstat.error;phot.magfloatnullable