J/A+A/523/A11ivo://CDS.VizieR/J/A+A/523/A11doi:10.26093/cds/vizier.35230011CDSMagrini L.Randich S.Zoccali M.Jilkova L.Carraro G.Galli D.,Maiorca E.Busso M.2017-07-04T07:07:59Z2010-11-12T09:41:33ZCDS support team

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

cds-question@unistra.fropen-star-clustersmetallicityIn the framework of the study of the Galactic metallicity gradient and its time evolution, we present new high-resolution spectroscopic observations obtained with FLAMES and the fiber link to UVES at VLT of three open clusters (OCs) located within ~7kpc from the Galactic Center (GC): NGC 6192, NGC 6404, NGC 6583. We also present new orbit determination for all OCs with Galactocentric distances (R_gc_)<=8kpc and metallicity from high-resolution spectroscopy. We have derived memberships of a group of evolved stars for each clusters, obtaining a sample of 4, 4, and 2 member stars in NGC 6192, NGC 6404, and NGC 6583, respectively. Using standard LTE analysis we derived stellar parameters and abundance ratios for the iron-peak elements Fe, Ni, Cr, and for the {alpha}-elements Al, Mg, Si, Ti, Ca. We calculated the orbits of the OCs currently located within 8kpc from the GC, and discuss their implication on the present-time radial location. The average metallicities of the three clusters are all oversolar: [Fe/H]= +0.12+/-0.04 (NGC 6192), +0.11+/-0.04 (NGC 6404), +0.37+/-0.03 (NGC 6583). They are in qualitative agreement with their galactocentric distances, being all internal OCs, and thus expected to be metal richer than the solar neighborhood. The abundance ratios of the other elements over iron [X/Fe] are consistent with solar values. The clusters we have analysed, together with other OC and Cepheid data, confirm a steep gradient in the inner disk, a signature of an evolutionary rate different than in the outer disk.2010A&A...523A..11Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/523/A11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/523/A11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/523/A11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/523/A11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/523/A11https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/523/A11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/523/A11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/523/A11/stars (List of stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/523/A11/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/523/A11/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/523/A11/stars?GETtext/xml+votable180.050000true250.190125-43.40216670.0055555555555555566/28806 29066 424028.650015785639275e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/523/A11?format=asciiOpticaldefaultJ/A+A/523/A11/starsList of starsEWDisplay the EW datameta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGCCluster NGC numbermeta.id.parentintStarStar number in clustermeta.id;meta.mainintRAJ2000Right Ascension J2000pos.eq.ra;meta.mainDEJ2000Declination J2000pos.eq.dec;meta.mainVmagJohnson V magnitudemagphot.mag;em.opt.VfloatV-IV-I color indexmagphot.color;em.opt.V;em.opt.IfloatJmag2MASS J magnitudemagphot.mag;em.IR.JfloatHmag2MASS H magnitudemagphot.mag;em.IR.HfloatKmag2MASS Ks magnitudemagphot.mag;em.IR.KfloatS/NSignal to noise ratio (at 650nm)stat.snrintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatMm[M NM] Membership (Member of NotMember)meta.code.membercharSimbadSimbad column added by the CDSmeta.refcharJ/A+A/523/A11/ewsEquivalent widths of evolved stars in NGC 6192, 6406 and 6583lambdaRest frame wavelength0.1nmem.wldoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIonphys.atmol.ionStagecharNGCCluster NGC numbermeta.id.parentintnullableStarStar ID numbermeta.id;meta.mainintEWEquivalent width0.1pmspect.line.eqWidthfloatJ/A+A/523/A11/tablea4Solar equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaRest frame wavelength0.1nmem.wldoubleIonIonphys.atmol.ionStagecharEPExcitation potentialeVphys.atmol.excitationfloatlog(gf)Oscillator strengthsphys.atmol.oscStrengthfloatEWEquivalent Width0.1pmspect.line.eqWidthfloat