J/other/RMxAA/42ivo://CDS.VizieR/J/other/RMxAA/42.75CDSArellano Ferro A.Garcia Lugo G.Rosenzweig P.2017-11-29T11:48:11Z2006-06-10T13:43:58ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsccd-photometryResults of CCD photometry using V and R filters are reported for 33 RR Lyrae stars in M15. Applying the approach of Fourier decomposition of the light curves, the physical parameters of the type RRab and RRc variables were estimated. The cluster is Oosterhoff type II and the values for the iron content and distance are: [Fe/H]=-1.98+/-0.24 and d=8.67+/-0.41kpc, respectively. The mean values of the physical parameters determined for the RR Lyrae stars place the cluster precisely into the sequences Oosterhoff type - metallicity and metallicity - effective temperature, valid for globular clusters. Evidences of evolution from the ZAHB are found for the RRc but not for the RRab stars.2006RMxAA..42...75Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RMxAA/42.75CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/110/704 : RR Lyrae Variables in M15 (Silbermann+ 1995)J/ApJ/602/264 : Proper motions and radial velocities in M15 (Mcnamara+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RMxAA/42.75https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RMxAA/42.75http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RMxAA/42.75https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RMxAA/42.75https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RMxAA/42.75http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RMxAA/42.75GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/other/RMxAA/42.75/table4Ephemeris of the RR Lyrae stars in M15 used in the present workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarVariable number in M15, Cl* NGC 7078 Saw VNN in Simbad (G1)meta.id;meta.maincharprimaryTypeRR Lyrae typemeta.notecharHJDEpoch of maximum lightdtime.epochdoubleP0Fundamental periodtime.perioddoubleu_P0[?] Uncertainty flag on P0meta.code.errorcharP1? Second period for double mode or RRd pulsatortime.perioddoublenullabler_P0[abc] Reference for Periods (1)meta.bibcharLCurvePlot the light curvemeta.ref.urlcharSimbadSimbad column added by the CDScharJ/other/RMxAA/42.75/table1Johnson V CCD photometry of RR Lyraes in M15recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarVariable number in M15, Cl* NGC 7078 Saw VNN in Simbad (G1)meta.id;meta.maincharBand[VR] Johnson V or R band for magnitudeinstr.bandpasscharmagJohnson V or R magnitudemagphot.magfloatHJDHeliocentric Julian Datedtime.epochdoubleJ/other/RMxAA/42.75/table2Johnson R CCD photometry of RR Lyraes in M15recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarVariable number in M15, Cl* NGC 7078 Saw VNN in Simbad (G1)meta.id;meta.maincharBand[VR] Johnson V or R band for magnitudeinstr.bandpasscharmagJohnson V or R magnitudemagphot.magfloatHJDHeliocentric Julian Datedtime.epochdouble