J/PASP/109/883ivo://CDS.VizieR/J/PASP/109/883doi:10.26093/cds/vizier.61090883CDSRutledge G.A.Hesser J.E.Stetson P.B.Mateo M.Simard L.,Bolte M.Friel E.D.Copin Y.2025-09-09T14:12:15Z1998-03-27T02:56:26ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvisible-astronomynarrow-band-photometryradial-velocityWe have obtained 2640 CCD spectra with resolution ~4{AA} in the region 7250-9000{AA} for 976 stars lying near the red giant branches in color-magnitude diagrams of 52 Galactic globular clusters. Radial velocities of ~16km/s accuracy per star determined from the spectra are combined with other criteria to assess quantitative membership probabilities. Measurements of the equivalent widths of the infrared calcium triplet lines yield a relative metal-abundance ranking with a precision that compares favorably to other techniques. Regressions between our system and those of others are derived. Our reduction procedures are discussed in detail, and the resultant catalog of derived velocities and equivalent widths is presented. The metal abundances derived from these data will be the subject of a future paper. (c) Astronomical Society of the Pacific1997PASP..109..883Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/109/883CatalogResearchIsServedByTAP VizieR generic servicerelated-toVII/195 : Globular Clusters in the Milky Way (Harris, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/109/883https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/109/883http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/109/883https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASP/109/883https://vizier.iucaa.in/viz-bin/votable?-source=J/PASP/109/883http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASP/109/883GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/PASP/109/883/table9Individual star data and resultsNotes*Notesmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCluster*Cluster namemeta.id.parentcharStarStar namemeta.id;meta.maincharDRV*Calulated velocity minus cluster velocitykm/sstat.fit.omc;phys.velocintV(HB)-VmagV magnitude of star above the horizontal branchmagphot.mag;arith.difffloat(B-V)0*? Dereddened B-V colormagphot.color;em.opt.B;em.opt.VfloatnullabledCaWeighted mean {SIGMA}Ca (net Ca II index) of the star0.1nmspect.indexfloate_dCaExternal error of dCa0.1nmstat.errorfloatPmu? Probability of membership from proper-motion data%stat.fit.goodnessintnullablePvelProbability of membership from our calculated velocities%stat.fit.goodnessintfp*? f_p_ valuestat.valuefloatnullablefr*? f_r_ valuestat.fit.paramfloatnullablew*? w valuestat.valuefloatnullableNspectNumber of spectra analyzed for the starmeta.numberintNight*Night the star was observedtime.epochchar