J/MNRAS/469/1330ivo://CDS.VizieR/J/MNRAS/469/1330doi:10.26093/cds/vizier.74691330CDSAlonso-Santiago J.Negueruela I.Marco A.Tabernero H.M.,Gonzalez-Fernandez C.Castro N.2024-08-17T20:19:02Z2020-05-14T06:20:36ZCDS support team

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

cds-question@unistra.fropen-star-clustersstellar-populationschemical-abundancesNGC 6067 is a young open cluster hosting the largest population of evolved stars among known Milky Way clusters in the 50-150Ma age range. It thus represents the best laboratory in our Galaxy to constrain the evolutionary tracks of 5-7M_{sun}_ stars. We have used high-resolution spectra of a large sample of bright cluster members (45), combined with archival photometry, to obtain accurate parameters for the cluster as well as stellar atmospheric parameters. We derive a distance of 1.78+/-0.12 kpc, an age of 90+/-20Ma and a tidal radius of 14.8^+6.8^_-3.2_ arcmin. We estimate an initial mass above 5700M_{sun}_, for a present-day evolved population of two Cepheids, two A supergiants and 12 red giants with masses ~=6M_{sun}_. We also determine chemical abundances of Li, O, Na, Mg, Si, Ca, Ti, Ni, Rb, Y and Ba for the red clump stars. We find a supersolar metallicity, [Fe/H]=+0.19+/-0.05, and a homogeneous chemical composition, consistent with the Galactic metallicity gradient. The presence of a Li-rich red giant, star 276 with A(Li)=2.41, is also detected. An overabundance of Ba is found, supporting the enhanced s-process. The ratio of yellow to red giants is much smaller than 1, in agreement with models with moderate overshooting, but the properties of the cluster Cepheids do not seem consistent with current Padova models for supersolar metallicity.2017MNRAS.469.1330Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/469/1330CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttps://webda.physics.muni.cz : WEBDA database HomePagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/469/1330https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/469/1330http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/469/1330https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/469/1330https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/469/1330http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/469/1330GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/469/1330/table1 (Log of the observed stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/469/1330/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/469/1330/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/469/1330/table1?GETtext/xml+votable180.050000true243.01933111-54.284728890.0055555555555555566/42150 42153 421568.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/469/1330?format=asciidefaultJ/MNRAS/469/1330/table1Log of the observed starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmoreindicates data in other tablesmeta.ref.urlcharStarStar designation (1)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainSpTypeSpectral typesrc.spTypecharTexpExposure timestime.duration;obs.exposureintSNRSignal-to-noise ratiostat.snrintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on radial velocitykm/sstat.errorfloatMember[yn? ] Member ?meta.code.membercharNotesNotesmeta.notecharSimbadNameSimbad column added by the CDSmeta.idcharJ/MNRAS/469/1330/table5Stellar atmospheric parameters for the hot starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMembers[MN ] Member ?meta.code.membercharStarStar designationmeta.id;meta.maincharn_Star[a] Note on Star (1)meta.notecharl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsiniRotational velocitykm/sphys.veloc.rotatfloate_vsini? rms uncertainty on rotational velocitykm/sstat.error;phys.veloc.rotatfloatnullableVturMicroturbulent velocitykm/sphys.velocfloate_Vtur? rms uncertainty on microturbulent velocitykm/sstat.errorfloatnullableTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on effective temperatureKstat.error;phys.temperature.effectiveintl_loggLower limit flag on loggmeta.code.errorcharloggSurface gravitylog(cm.s**-2)phys.gravityfloate_logg? rms uncertainty on surface gravitylog(cm.s**-2)stat.errorfloatnullablen_logg[b] Note on logg (2)meta.notechar[Fe/H]? Metallicity (only in table6.dat)phys.abund.Zfloatnullablee_[Fe/H]? rms uncertainty on metallicity (only in table6.dat)stat.error;phys.abund.Fefloatnullablel_VturLimit flag on Vturmeta.code.errorcharJ/MNRAS/469/1330/table6Stellar atmospheric parameters for the cool starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMembers[MN ] Member ?meta.code.membercharStarStar designationmeta.id;meta.maincharn_Star[a] Note on Star (1)meta.notecharl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsiniRotational velocitykm/sphys.veloc.rotatfloate_vsini? rms uncertainty on rotational velocitykm/sstat.error;phys.veloc.rotatfloatnullablel_VturLimit flag on Vturmeta.code.errorcharVturMicroturbulent velocitykm/sphys.velocfloate_Vtur? rms uncertainty on microturbulent velocitykm/sstat.errorfloatnullableTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on effective temperatureKstat.error;phys.temperature.effectiveintl_loggLower limit flag on loggmeta.code.errorcharloggSurface gravitylog(cm.s**-2)phys.gravityfloate_logg? rms uncertainty on surface gravitylog(cm.s**-2)stat.errorfloatnullablen_logg[b] Note on logg (2)meta.notechar[Fe/H]? Metallicity (only in table6.dat)phys.abund.Zfloatnullablee_[Fe/H]? rms uncertainty on metallicity (only in table6.dat)stat.error;phys.abund.FefloatnullableJ/MNRAS/469/1330/table9Chemical abundances, relative to solar abundances by Asplund et al. (2005, ASP Conf. Ser. 336, 25), measured on the cool starsStarStar designation (1)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMembers[MN ] Member ?meta.code.memberchar[O/H]? Abundance [O/H]log(Sun)phys.abundfloatnullablee_[O/H]? rms uncertainty on [O/H] abundancelog(Sun)stat.error;phys.abundfloatnullable[Na/H]Abundance [Na/H]log(Sun)phys.abundfloate_[Na/H]rms uncertainty on [Na/H] abundancelog(Sun)stat.error;phys.abundfloat[Mg/H]? Abundance [Mg/H]log(Sun)phys.abundfloatnullablee_[Mg/H]? rms uncertainty on [Mg/H] abundancelog(Sun)stat.error;phys.abundfloatnullable[Si/H]Abundance [Si/H]log(Sun)phys.abundfloate_[Si/H]rms uncertainty on [Si/H] abundancelog(Sun)stat.error;phys.abundfloat[Ca/H]Abundance [Ca/H]log(Sun)phys.abundfloate_[Ca/H]rms uncertainty on [Ca/H] abundancelog(Sun)stat.error;phys.abundfloat[Ti/H]Abundance [Ti/H]log(Sun)phys.abundfloate_[Ti/H]rms uncertainty on [Ti/H] abundancelog(Sun)stat.error;phys.abundfloat[Ni/H]Abundance [Ni/H]log(Sun)phys.abundfloate_[Ni/H]rms uncertainty on [Ni/H] abundancelog(Sun)stat.error;phys.abundfloat[Rb/H]? Abundance [Rb/H]log(Sun)phys.abundfloatnullablee_[Rb/H]? rms uncertainty on [Rb/H] abundancelog(Sun)stat.error;phys.abundfloatnullable[Y/H]? Abundance [Y/H]log(Sun)phys.abundfloatnullablee_[Y/H]? rms uncertainty on [Y/H] abundancelog(Sun)stat.error;phys.abundfloatnullable[Ba/H]? Abundance [Ba/H]log(Sun)phys.abundfloatnullablee_[Ba/H]? rms uncertainty on [Ba/H] abundancelog(Sun)stat.error;phys.abundfloatnullableJ/MNRAS/469/1330/tablea1Photometric magnitudes of the stars observed spectroscopicallyCPDCPD namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar designationmeta.id;meta.maincharn_StarNote on Star (1)meta.notecharSpTypeSpectral typesrc.spTypecharBmag? B magnitude (2)magphot.mag;em.opt.BfloatnullableVmag? V magnitude (2)magphot.mag;em.opt.VfloatnullableJmag2MASS J magnitudemagphot.mag;em.IR.Jfloate_Jmag2MASS J magnitude errormagstat.error;phot.mag;em.IR.JfloatHmag2MASS H magnitudemagphot.mag;em.IR.Hfloate_Hmag2MASS H magnitude errormagstat.error;phot.mag;em.IR.HfloatKsmag2MASS Ks magnitudemagphot.mag;em.IR.Kfloate_Ksmag2MASS Ks magnitude errormagstat.error;phot.mag;em.IR.KfloatJ/MNRAS/469/1330/tablea2Number of red giant stars and yellow supergiants in open clusters, containing no Cepheids, with ages between 50 and 150MaClusterCluster namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlogtauAge, taken from the WEBDA data base (https://webda.physics.muni.cz)log(yr)time.agefloatNRGNumber of red giantsmeta.numberintNYG? Number of yellow supergiantsmeta.numberchar