J/A+A/603/L7ivo://CDS.VizieR/J/A+A/603/L7doi:10.26093/cds/vizier.36039007CDSMucciarelli A.Monaco L.Bonifacio P.Saviane I.2017-09-04T07:56:52Z2017-07-19T07:11:15ZCDS support team

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

cds-question@unistra.frstellar-associationsgiant-starsline-intensitiesWe observed six He-clump stars of the intermediate-age stellar cluster Gaia1 with the MIKE/MAGELLAN spectrograph. A possible extra-galactic origin of this cluster, recently discovered thanks to the first data release of the ESA Gaia mission, has been suggested, based on its orbital parameters. Abundances for Fe, {alpha}, proton- and neutron-capture elements have been obtained. We find no evidence of intrinsic abundance spreads. The iron abundance is solar ([FeI/H]=+0.00+/-0.01; {sigma}=0.03dex). All the other abundance ratios are generally solar-scaled, similar to the Galactic thin disk and open cluster stars of similar metallicity. The chemical composition of Gaia1 does not support an extra-galactic origin for this stellar cluster, which can be considered as a standard Galactic open cluster.2017A&A...603L...7Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/603/L7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/603/L7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/603/L7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/603/L7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/603/L7https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/603/L7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/603/L7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/603/L7/table1 (Main information on the observed MIKE targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/603/L7/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/603/L7/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/603/L7/table1?GETtext/xml+votable180.050000true101.49249889-16.699908890.0055555555555555566/20934 209408.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/603/L7?format=asciidefaultJ/A+A/603/L7/table1Main information on the observed MIKE targetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/7] Star identification numbermeta.idint2MASS2MASS name (HHMMSSss+DDMMSSs)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainJmag2MASS J magnitudemagphot.mag;em.IR.JfloatKsmag2MASS Ks magnitudemagphot.mag;em.IR.KfloatRVRadial velocity (1)km/sphys.veloc;pos.heliocentricfloatTeff? Effective temperature (1)Kphys.temperature.effectiveintnullablee_Teff? rms uncertainty on Teff (1)Kstat.error;phys.temperature.effectiveintnullablelogg? Surface gravity (1)log(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logg (1)log(cm.s**-2)stat.errorfloatnullableVt? Microturbulent velocity (1)km/sphys.velocfloatnullablee_Vt? rms uncertainty on Vt (1)km/sstat.errorfloatnullableSNRSignal-to-noise ratio measured at 600nmstat.snrintEWDisplay the equivalent widthsmeta.ref.urlcharJ/A+A/603/L7/tablea1Atomic data and equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/7] Star identification numbermeta.idintlambdaWavelength0.1nmem.wlfloatElementElementphys.atmol.elementfloatlog(gf)Oscillator strengthphys.atmol.oscStrengthfloatEpExcitation potentialeVphys.atmol.excitationfloatEWMeasured equivalent width0.1pmspect.line.eqWidthfloat