J/A+A/539/A138ivo://CDS.VizieR/J/A+A/539/A138doi:10.26093/cds/vizier.35390138CDSFiorentino G.Contreras Ramos R.Tolstoy E.Clementini G.Saha A.2018-01-02T13:43:10Z2012-03-12T15:43:25ZCDS support team

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

cds-question@unistra.frgalaxiesvariable-starshst-photometryUsing archival multi-epoch ACS/WFC images in the F606W and F814W filters of a resolved stellar field in Local Group dwarf elliptical galaxy M 32 we have made an accurate Colour-Magnitude Diagram and a careful search for RR Lyr variable stars. We identified 416 bona fide RR Lyr stars over our field of view, and their spatial distribution shows a rising number density towards the centre of M 32. These new observations clearly confirm the tentative result of Fiorentino et al. (2010ApJ...708..817F), on a much smaller field of view, associating an ancient population of RR Lyr variables to M 32. We associate at least 83 RR Lyr stars in our field to M 32.2012A&A...539A.138Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/539/A138CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/539/A138https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/539/A138http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/539/A138https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/539/A138https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/539/A138http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/539/A138GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/539/A138/table2 (The RR Lyr variable stars we have identified)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/539/A138/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/539/A138/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/539/A138/table2?GETtext/xml+votable180.050000true10.69570722240.8719886110.0055555555555555566/2622-26232.0401237512456292e-19 3.9057996558789745e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/539/A138?format=asciidefaultJ/A+A/539/A138/table2The RR Lyr variable stars we have identifiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameVariable name, VNNN (1)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainPerPerioddtime.periodfloatTypeRR Lyrae type (2)meta.notechar<F606W>Light-curve weighted mean magnitude calibrated in HST VEGAMAGmagphot.mag;em.opt.RfloatVampAmplitude in filter F606Wmagphot.mag;em.opt.Rfloat<F814W>light-curve weighted mean magnitude calibrated in HST VEGAMAG for 2-filter RR Lyrae and from Dolphot output for 1-filter RR Lyraemagphot.mag;em.opt.IfloatIamp? Amplitude in filter F814W (only available for 2-filter RR Lyrae)magphot.mag;em.opt.Ifloatnullable<V0mag>? Dereddened mean magnitude <F606W> (3)magphot.mag;em.opt.Vfloatnullable<I0mag>? Dereddened mean magnitude <F814W> (3)magphot.mag;em.opt.IfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar