J/A+A/535/A42ivo://CDS.VizieR/J/A+A/535/A42doi:10.26093/cds/vizier.35350042CDSTrevisan M.Barbuy B.Eriksson K.Gustafsson B.Grenon M.Pompeia L.2017-06-12T08:24:28Z2011-10-31T07:20:10ZCDS support team

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

cds-question@unistra.frlate-type-starschemical-abundancesThe analysis of 71 metal-rich stars is based on optical high-resolution echelle spectra obtained with the FEROS spectrograph at the ESO 1.52-m Telescope at La Silla, Chile. The metallicities and abundances of C, O, Mg, Si, Ca, and Ti were derived based on LTE detailed analysis, employing the MARCS model atmospheres. We confirm the high metallicity of these stars reaching up to [FeI/H]=0.58, and the sample of metal-rich dwarfs can be kinematically subclassified in samples of thick disk, thin disk, and intermediate stellar populations. All sample stars show solar alpha-Fe ratios, and most of them are old and still quite metal rich. The orbits suggest that the thin disk, thick disk and intermediate populations were formed at Galactocentric distances of ~8kpc, ~6kpc, and ~7kpc, respectively. The mean maximum height of the thick disk subsample of Z_max_~380pc, is lower than for typical thick disk stars. A comparison of alpha-element abundances of the sample stars with bulge stars shows that the oxygen is compatible with a bulge or inner thick disk origin. Our results suggest that models of radial mixing and dynamical effects of the bar and bar/spiral arms might explain the presence of these old metal-rich dwarf stars in the solar neighbourhood.2011A&A...535A..42Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/535/A42CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/535/A42https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/535/A42http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/535/A42https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/535/A42https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/535/A42http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/535/A42GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/535/A42/stars (Observations and results of the spectroscopy: abundances and kinematics)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/535/A42/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/535/A42/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/535/A42/stars?GETtext/xml+votable180.050000true141.4243333-6.77216670.0055555555555555566/12464 16520 17011 17301 17453 17991 18591 18661 18747 19396 20512 20640 21117 22967 23159 23560 25322 26651 26745 26788 27403 28894 29848 29852 29881 30219 30665 31145 31500 33236 33243 33311 33518 33571 33991 34306 34739 35128 35581 35668 35839 36012 36374 36492 37947 38508 38747 39591 40143 40302 40375 40442 40822 41468 41721 42411 42776 43044 43650 45376 45445 45717 45974 46203 46536 46953 47247 48553 48764 49036https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/535/A42?format=asciiOpticaldefaultJ/A+A/535/A42/starsObservations and results of the spectroscopy: abundances and kinematicse_ecc? Error in eccstat.errorfloatnullableAirmassAirmassobs.airMassfloatS/NMean signal to noise ratiostat.snr;stat.meanintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharprimaryn_StarSimbad column added by the CDSmeta.ref.urlcharObs.dateDate of observationtime.epochnullableObs.TimeUT time of observationtime.epoch;obsnullableTexpExposure timestime.duration;obs.exposureintTeffEffective temperatureKphys.temperature.effectiveinte_TeffError in effective temperatureKstat.error;phys.temperature.effectiveintloggGravitylog(cm.s**-2)phys.gravityfloate_loggError in gravitylog(cm.s**-2)stat.errorfloatvtMicroturbulence velocity {xi}km/sphys.veloc.microTurbfloate_vtError in microturbulence velocitykm/sstat.errorfloat[Fe/H]Metallicity from Geneva photometrylog(Sun)phys.abund.Zfloat[FeI/H]Abundance of Fe Ilog(Sun)phys.abundfloate_[FeI/H]Error in abundance of Fe Ilog(Sun)stat.error;phys.abundfloat[FeII/H]Abundance of Fe IIlog(Sun)phys.abund.Fefloate_[FeII/H]Error in abundance of Fe IIlog(Sun)stat.error;phys.abundfloatMass? Stellar masssolMassphys.massfloatnullablee_Mass? Error in stellar masssolMassstat.error;phys.massfloatnullableAge? Stellar ageGyrtime.agefloatnullablee_Age? Error in stellar ageGyrstat.error;time.agefloatnullable[CaI/H]Abundance of Calog(Sun)phys.abundfloate_[CaI/H]Error in abundance of Calog(Sun)stat.error;phys.abundfloat[CaI/Fe]Ca-to-Fe ratiolog(Sun)phys.abundfloat[SiI/H]Abundance of Silog(Sun)phys.abundfloate_[SiI/H]Error in abundance of Silog(Sun)stat.error;phys.abundfloat[SiI/Fe]Si-to-Fe ratiolog(Sun)phys.abundfloat[TiI/H]Abundance of Tilog(Sun)phys.abundfloate_[TiI/H]Error in abundance of Tilog(Sun)stat.error;phys.abundfloat[TiI/Fe]Ti-to-Fe ratiolog(Sun)phys.abundfloat[C/H]? Abundance of Clog(Sun)phys.abundfloatnullable[C/Fe]? C-to-Fe ratiolog(Sun)phys.abundfloatnullable[NiI/H]Abundance of Nilog(Sun)phys.abundfloate_[NiI/H]Error in abundance of Nilog(Sun)stat.error;phys.abundfloat[NiI/Fe]Ni-to-Fe ratiolog(Sun)phys.abundfloat[O/H]? Abundance of Oxygenlog(Sun)phys.abundfloatnullable[O/Fe]? O-to-Fe ratiolog(Sun)phys.abundfloatnullable[Mg/H]Abundance of Magnesiumlog(Sun)phys.abundfloat[Mg/Fe]Mg-to-Fe ratiolog(Sun)phys.abundfloatUvelU component of the velocitykm/sphys.veloc;pos.cartesian.xintVvelV component of the velocitykm/sphys.veloc;pos.cartesian.yintWvelW component of the velocitykm/sphys.veloc;pos.cartesian.zintHVHeliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HVError in Heliocentric velocitykm/sstat.errorfloatRmin? Minimum distance from the Galactic centrekpcpos.distance;src.orbitalfloatnullablee_Rmin? Error in Rminkpcstat.errorfloatnullableRmax? Maximum distance from the Galactic centrekpcpos.distance;src.orbitalfloatnullablee_Rmax? Error in Rmaxkpcstat.errorfloatnullableZmax? Maximum height from the Galactic planekpcpos.distance;src.orbitalfloatnullablee_Zmax? Error in Zmaxkpcstat.errorfloatnullableecc? Eccentricity of the galactic orbitsrc.orbital.eccentricity;pos.galacticfloatnullableP1Probability of belonging to the thin disk%statintP2Probability of belonging to the thick disk%statintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSimbadSimbad column added by the CDScharJ/A+A/535/A42/tablea2Selected data from the PASTEL cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharTeffEffective temperatureKphys.temperature.effectiveinte_Teff? Error in effective temperatureKstat.error;phys.temperature.effectiveintnullablelogg? Gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Error in gravitylog(cm.s**-2)stat.errorfloatnullable[Fe/H]? Metallicityphys.abund.Zfloatnullablee_[Fe/H]? Error in metallicitystat.error;phys.abund.FefloatnullableRefReference code, in refs.dat filemeta.noteintJ/A+A/535/A42/tablea3Si I, Ca I, and Ti I line listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElemElementphys.atmol.elementcharIonIonization level (1=neutral)physintlambdaWavelength in Angstroms ({AA})0.1nmem.wlfloatXexcLower excitation potential {chi}eVphys.atmol.excitation;stat.minfloatloggfadopted log gf-valuesphys.atmol.oscStrengthfloatloggf1? log gf-values from Bensby et al. (2004, Cat. J/A+A/415/155)phys.atmol.oscStrengthfloatnullableloggf2? log gf-values from NISTphys.atmol.oscStrengthfloatnullableloggf3log gf-values from VALDphys.atmol.oscStrengthfloatloggf4? log gf-values from Barbuy et al. (2009A&A...507..405B)phys.atmol.oscStrengthfloatnullableJ/A+A/535/A42/tablea4Fe I and Fe II line listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElemElementphys.atmol.elementcharIonIonization level (1=neutral)physintlambdaWavelength in Angstroms ({AA})0.1nmem.wlfloatXexcLower excitation potential {chi}eVphys.atmol.excitation;stat.minfloatC6C6 value (van der Waals pressure broadening)stat.fit.paramdoubleloggfadopted log gf-valuesphys.atmol.oscStrengthfloatloggf1? log gf-values from VALDphys.atmol.oscStrengthfloatnullableloggf2? log gf-values from NISTphys.atmol.oscStrengthfloatnullableloggf3? log gf from Melendez et al. (2009ApJ...704L..66M) for Fe I and Melendez & Barbuy (2009A&A...497..611M) for Fe IIphys.atmol.oscStrengthfloatnullableJ/A+A/535/A42/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.note;meta.mainintprimaryBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar