J/ApJS/90/83ivo://CDS.VizieR/J/ApJS/90/83doi:10.26093/cds/vizier.20900083CDSCote P.Welch D.L.Fischer P.Da Costa G.S.Tamblyn P.Seitzer P.Irwin M.J.1997-12-09T20:18:05Z1997-12-09T21:17:57ZCDS support team

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

cds-question@unistra.frccd-photometryglobular-star-clustersradial-velocityWe present BV CCD and APM photometry, accurate astrometry and 1859 radial velocities for 1318 stars within ~36deg of the Galactic globular cluster NGC 3201. The field and cluster populations separate unambiguously in two distinct samples since the systemic radial velocity of NGC 3201 is 494.2km/s. After removal of the 19 known NGC 3201 photometric variables in our sample, we have a database of 930 radial velocities for 420 member giants (276 of which have multiple velocity measurements) with which to identify spectroscopic binaries on the basis of radial velocity variations. The mean time span of the observations is 1.7yr, with coverage up to ~6yr for our best-studied stars. Monte Carlo simulations of the observed velocity variations have provided _upper_limits_ to the cluster binary fraction (for binaries with 0.1<=P<=5-10yr and mass ratios in the range 0.1-1) of 0.06-0.10 (circular orbits) and 0.15-0.18 (eccentric orbits). These results suggest an incidence of binarism for NGC 3201 consistent with the corresponding incidence among nearby solar-type stars having similar periods and mass ratios (0.04-0.08) and that for a small sample of other globular clusters (0.05-0.12) studied by Hut et al. (1992PASP..104..981H). The detailed analysis of the cluster dynamics, based on the data given here, are presented by Cote et al. (1995ApJ...454..788C). Addresses: Cote P., Welch D.L. and Fischer P. Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada L8S 4M1 Da Costa G.S. Anglo-Australian Observatory, P.O. Box 296, Epping, NSW 2121, Australia Tamblyn P. Steward Observatory, University of Arizona, Tucson, AZ, 85721 Seitzer P. Department of Astronomy, University of Michigan, Ann Arbor, MI, 48109 Irwin M.J. Royal Greenwich Observatory, Madingley Road, Cambridge, CB3 0HA, UK1994ApJS...90...83Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/90/83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/90/83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/90/83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/90/83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/90/83https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/90/83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/90/83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/90/83/table2 (Radial velocities for photometric variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/90/83/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/90/83/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/90/83/table2?GETtext/xml+votable180.050000true154.2858333-46.35783330.005555555555555556Cone search capability for table J/ApJS/90/83/table3 (Radial velocities and photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/90/83/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/90/83/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/90/83/table3?GETtext/xml+votable180.050000true153.6581667-46.26363890.005555555555555556Cone search capability for table J/ApJS/90/83/table4 (Radial velocities for NGC 3201 field stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/90/83/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/90/83/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/90/83/table4?GETtext/xml+votable180.050000true153.5574167-46.38552780.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/90/83?format=asciiOpticaldefaultJ/ApJS/90/83/table2Radial velocities for photometric variablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVarID[1/19]+= Star number in this tablemeta.id;meta.mainintRAJ2000Right Ascension J2000 (hours)pos.eq.ra;meta.mainDEJ2000Declination J2000 (sign)pos.eq.dec;meta.mainnullableHJDHeliocentric Julian Date of observationdtime.epochdoubleRVelRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVelMean error on RVelkm/sstat.errorfloatPeriod*? Period of variabilitydtime.periodfloatr_RVel*Source of velocitymeta.refcharID(Saw)*Designation in Sawyer-Hog (1973)meta.idcharJ/ApJS/90/83/table3Radial velocities and photometrye_RVRV uncertaintykm/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar[1/420]+= Star identification numbermeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination signpos.eq.dec;meta.mainnullableDistDistance from cluster centerarcminpos.angDistancefloatHJDHJD of radial velocity observationdtime.epochdoubleRVHeliocentric radial velocitykm/sphys.veloc;pos.heliocentricfloatRVmeanWeighted mean heliocentric radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVmeanRVmean uncertaintykm/sstat.errorfloatVmagApparent V magnitudemagphot.mag;em.opt.VfloatB-VApparent B-V colormagphot.color;em.opt.B;em.opt.Vfloato_RVNumber of radial velocity measurementsmeta.numberint2_RVChi-square for radial velocitiesstat.fit.paramfloatChi2RV? Reduced chi-square for radial velocitiesstat.fit.paramfloatProb[0/1]? Probability of obtaining a chi-square at least this large purely as a consequence of measurement errorstat.fit.goodnessfloatSrcSource of photometry, 'APM' or 'CCD'meta.refcharJ/ApJS/90/83/table4Radial velocities for NGC 3201 field starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/879]+= Identification numbermeta.id;meta.mainintn_ID'*' if identified as member in another runmeta.notecharRA2000Right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination signpos.eq.dec;meta.mainnullableDistDistance from cluster centerarcminpos.angDistancefloatHJDHeliocentric Julian date of observationdtime.epochdoubleRVHeliocentric Radial Velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatVmag[]? V Magnitudemagphot.mag;em.opt.VfloatB-V[]? B-V Colourmagphot.color;em.opt.B;em.opt.VfloatPhotSource of Photometry (APM or CCD)meta.refcharObsRunObserving Run (1)meta.id;obschar