J/MNRAS/393/272ivo://CDS.VizieR/J/MNRAS/393/272doi:10.26093/cds/vizier.73930272CDSWarren S.R.Cole A.A.2024-07-08T20:15:21Z2015-07-09T07:24:59ZCDS support team

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

cds-question@unistra.fropen-star-clustersglobular-star-clustersgiant-starschemical-abundancesradial-velocityNear-infrared spectra of 133 red giant stars from 10 Galactic open clusters and two Galactic globular clusters spanning 2.2dex in metallicity and 11Gyr in age are presented. We combine this sample with 10 clusters from Cole and collaborators (2004MNRAS.347..367C) to investigate the CaII triplet line strengths and their relation to cluster metallicity and position along the red giant branch. We show that characterizing the stellar surface gravity using K_s_-band photometry (relative to the horizontal branch) taken from the Two Micron All-Sky Survey allows for metallicity measurements at least as precise as those derived using V- or I-band data. This has the great advantage that uniform photometry and reliable astrometry are available for a large number of clusters. Using K_s_-band photometry also reduces the effect of differential reddening within a given cluster. We find no significant evidence for age or metallicity effects to the linear CaII triplet-metallicity relationship over the small range in magnitudes studied when homogeneous reference metallicities are used. We derive the first spectroscopic metallicity and new radial velocity estimates for five open clusters: Berkeley 81, Berkeley 99, IC 1311, King 2 and NGC7044. King2 has an anomalous radial velocity compared with the local disc population. We discuss the possibility that it is part of the Monoceros tidal stream.2009MNRAS.393..272Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/393/272CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/121/95 : Giant stars abundances in 24 clusters (Carretta+ 1997)J/MNRAS/299/1 : BVI photometry in four open clusters (Sagar+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/393/272https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/393/272http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/393/272https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/393/272https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/393/272http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/393/272GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/393/272/clusters (List of studied clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/393/272/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/393/272/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/393/272/clusters?GETtext/xml+votable180.050000true322.49291712.1679440.005555555555555556Cone search capability for table J/MNRAS/393/272/tables3 (Sample of cluster giants and derived parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/393/272/tables3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/393/272/tables3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/393/272/tables3?GETtext/xml+votable180.050000true322.491708312.24055560.0055555555555555565/3688 6/2991 3014-3015 3020-3021 4298 12405 12943 13990 13996 14173 14175 14573 14575 14584 14740 15593-15595 15759 15827 15833 21017 21719 22887 23745 24843 30308 33321 34242 39129 396427.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/393/272?format=asciiOpticaldefaultJ/MNRAS/393/272/clustersList of studied clustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id;meta.maincharprimaryNNumber of stars observed in this clustermeta.numberintnullableRAJ2000Right ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Declination (J2000) (1)pos.eq.dec;meta.main[Fe/H][-2.2/0.2]? Metallicitylog(Sun)phys.abund.Zfloatnullablee_[Fe/H][0.01/0.14]? rms uncertainty on [Fe/H]log(Sun)stat.error;phys.abund.FefloatnullableDist[3/6.5]? Distance of clusterkpcpos.distance;pos.heliocentricfloatnullableAge[1/13] Cluster ageGyrtime.agefloatKsmagKs magnitude of red clump (RC)magphot.mag;em.IR.Kfloate_Ksmagrms uncertainty on Ksmagmagstat.error;phot.mag;em.IR.KfloatRefReferences (2)meta.refcharC04[*] * for Cole et al. (2004MNRAS.347..367C) clustersmeta.codecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/393/272/tables3Sample of cluster giants and derived parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentchar2MASS2MASS ID (HHMMSSss+DDMMSSs)meta.id;meta.maincharKsmag[5.1/13.3] 2MASS Ks magnitudemagphot.mag;em.IR.Kfloate_Ksmag[0.01/0.05] rms uncertainty on Ksmagmagstat.error;phot.mag;em.IR.KfloatRV[-723/619] Radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV[0.01/5.32] rms uncertainty on RVkm/sstat.errorfloatSW(CaT)[-1.2/15] Calcium Triplet index (1)0.1nmspect.indexfloate_SW(CaT)[0.14/12] rms uncertainty on SW(CaT)0.1nmstat.errorfloatNotesNotes, 1=accepted star member (2)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.main