J/A+A/488/943ivo://CDS.VizieR/J/A+A/488/943doi:10.26093/cds/vizier.34880943CDSSestito P.Bragaglia A.Randich S.Pallavicini R.Andrievsky S.M.,Korotin S.A.2008-12-11T16:32:54Z2008-12-11T17:28:53ZCDS support team

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

cds-question@unistra.fropen-star-clustersgiant-starschemical-abundancesTo constrain the formation and chemical evolution of the Galactic disk, we surveyed open clusters of different ages, metal contents, and distances form the Galactic centre. We employed FLAMES on VLT-UT2 to collect UVES spectra of bright giant stars in each of the selected clusters, and used them to derive the iron abundance and the detailed chemical composition. Equivalent widths were measured and abundance analysis was performed using the MOOG code and Kurucz model atmospheres. We derived the abundance of Fe for Mg, Al, Ca, Si, Ti, Cr, Ni, and Ba. We employed direct line profile fitting to derive non-LTE Na abundances. We found [Fe/H]=-0.30, -0.31, +0.13, -0.33 for Be 20, Be 29, Cr 261, and Melotte 66, respectively (with rms values of 0.02 to 0.05dex). Alpha- and Fe-peak elements have solar ratios, Ba is enhanced, and Na has solar ratios, suggesting that treatment of non-LTE is very important. We confirm the presence of a metallicity gradient in the inner disk, and a flattening in the outer part.2008A&A...488..943Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/488/943CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/480/79 : Abundances of giants in five Galactic clusters (Bragaglia+ 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/488/943https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/488/943http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/488/943https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/488/943https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/488/943http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/488/943GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/488/943/stars (Star positions, photometry and radial velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/488/943/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/488/943/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/488/943/stars?GETtext/xml+votable180.050000true83.1532250.184677780.0055555555555555566/22887 23861 39129 39131 41613https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/488/943?format=asciiOpticaldefaultJ/A+A/488/943/starsStar positions, photometry and radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (1)meta.id.parentcharStarStar number within clustermeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainBmag? B magnitudemagphot.mag;em.opt.BfloatnullableVmagV magnitudemagphot.mag;em.opt.VfloatImagI magnitudemagphot.mag;em.opt.IfloatRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatMmMembership notesmeta.code.membercharWEBDA? WEBDA numbermeta.idintnullableEWDisplay equivalent widthsmeta.ref.urlcharNameStar namemeta.idcharJ/A+A/488/943/ewEquivalent widthsElElementphys.atmol.elementcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharStarStar number within clustermeta.id;meta.mainintlambdaWavelength0.1nmem.wlfloatEWEquivalent width0.1pmspect.line.eqWidthfloat