J/A+A/474/121ivo://CDS.VizieR/J/A+A/474/121doi:10.26093/cds/vizier.34740121CDSBorissova J.Ivanov V.D.Stephens A.W.Catelan M.Minniti M.Prieto G.2008-02-10T12:32:47Z2008-02-10T13:31:54ZCDS support team

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

cds-question@unistra.frglobular-star-clustersinfrared-photometryWe have obtained deep infrared images and K-band spectra of the Galactic globular cluster 2MASS GC02. A variable star search has also been carried out. Some basic physical properties of the cluster, such as metallicity, reddening, distance modulus and radial velocity, are derived. These measurements are based on an analysis of the J-Ks versus Ks color-magnitude diagram of the cluster. Spectroscopically derived metallicities and radial velocities of 15 stars are presented. In addition, periods and amplitudes are provided for five RR Lyrae stars discovered in the field. The cluster is moderately metal-rich and has a relatively high radial velocity. Its horizontal branch appears to be predominantly red, though our photometry cannot rule out the presence of a blue component as seen in NGC 6388 and NGC 6441. Similar to these two clusters, the detected RR Lyrae stars in GC02 have anomalously long periods for the cluster's moderately high metallicity, which suggests that it too is an Oosterhoff type III cluster. Comparison with the existing kinematic and abundance information for the Galactic globular clusters shows that GC02 most probably belongs to the bulge sub population, although an inner halo association cannot be ruled out.2007A&A...474..121Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/474/121CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/474/121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/474/121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/474/121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/474/121https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/474/121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/474/121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/474/121/table1 (Metallicity and radial velocities of the program stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/474/121/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/474/121/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/474/121/table1?GETtext/xml+votable180.050000true272.3960833-20.78816670.005555555555555556Cone search capability for table J/A+A/474/121/phot (Individual J-Ks colors and Ks magnitudes of the Galactic globular cluster 2MASS GC02)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/474/121/phot?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/474/121/phot?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/474/121/phot?GETtext/xml+votable180.050000true272.4066553-20.75626470.0055555555555555566/29090https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/474/121?format=asciiInfrareddefaultJ/A+A/474/121/table1Metallicity and radial velocities of the program starsRV1Radial velocity of first template star (1)km/sspect.dopplerVelocintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainKsmag? Ks magnitudemagphot.mag;em.IR.KfloatnullableJ-Ks? J-Ks colour indexmagphot.color;em.IR.J;em.IR.KfloatnullableEWNaEquivalent width of NaI (2.21um)spect.line.eqWidthfloatEWCaEquivalent width of CaI (2.26um)spect.line.eqWidthfloatEWCOEquivalent width of CO (2.29um)spect.line.eqWidthfloat[Fe/H]Metallicitylog(Sun)phys.abund.ZfloatRV2Radial velocity of second template star (1)km/sspect.dopplerVelocintRVRadial velocity (mean of RV1 and RV2) (1)km/sspect.dopplerVeloc;pos.heliocentricinte_RVrms uncertainty on RVkm/sstat.errorintMemb[yes no] Member ?meta.code.memberchar2MASS2MASS name (JHHMMSSss+DDMMSSs)meta.id;meta.maincharJ/A+A/474/121/photIndividual J-Ks colors and Ks magnitudes of the Galactic globular cluster 2MASS GC02recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXposX coordinate (1)pixpos.cartesian.x;instr.detfloatYposY coordinate (1)pixpos.cartesian.y;instr.detfloatJ-KsJ-Ks color indexpixphot.color;em.IR.J;em.IR.KfloatKsmagKs magnitudepixphot.mag;em.IR.KfloatNote[p] p for program star, in table1meta.notechar_RAPosition computed from a comparison with 2MASS (II/246) ({sigma}=0.3'') (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from a comparison with 2MASS (II/246) ({sigma}=0.3'') (declination part)degpos.eq.dec;meta.main