J/A+A/619/A176ivo://CDS.VizieR/J/A+A/619/A176doi:10.26093/cds/vizier.36190176CDSBragaglia A.Fu X.Mucciarelli A.Andreuzzi G.Donati P.2020-06-25T14:40:08Z2018-11-22T08:21:28ZCDS support team

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

cds-question@unistra.fropen-star-clustersmilky-way-galaxychemical-abundanceshertzsprung-russell-diagramspectroscopyRuprecht 147 (NGC 6774) is the closest old open cluster, with a distance of less than 300pc and an age of about 2.5Gyr. It is therefore well suited for testing stellar evolution models and for obtaining precise and detailed chemical abundance information. We combined photometric and astrometric information coming from literature and the Gaia mission with very high-resolution optical spectra of stars in different evolutionary stages to derive the cluster distance, age, and detailed chemical composition. We obtained spectra of six red giants using HARPS-N at the Telescopio Nazionale Galileo (TNG). We also used European Southern Observatory (ESO) archive spectra of 22 main sequence (MS) stars, observed with HARPS at the 3.6m telescope. The very high resolution (115000) and the large wavelength coverage (about 380-680nm) of the twin instruments permitted us to derive atmospheric parameters, metallicity, and detailed chemical abundances of 23 species from all nucleosynthetic channels. We employed both equivalent widths and spectrum synthesis. We also re-derived the cluster distance and age using Gaia parallaxes, proper motions, and photometry in conjunction with the PARSEC stellar evolutionary models. We fully analysed those stars with radial velocity and proper motion/parallax in agreement with the cluster mean values. We also discarded one binary not previously recognised, and six stars near the MS turn-off because of their high rotation velocity. Our final sample consists of 21 stars (six giants and 15 MS stars). We measured metallicity (the cluster average [Fe/H] is +0.08, rms=0.07) and abundances of light, alpha, Fe-peak, and neutron-capture elements. The Li abundance follows the expectations, showing a tight relation between temperature and abundance on the MS, at variance with M67, and we did not detect any Li-rich giant.2018A&A...619A.176Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/619/A176CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/145/134 : Radial velocities of 108 stars in Ruprecht 147 (Curtis+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/619/A176https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/619/A176http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/619/A176https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/619/A176https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/619/A176http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/619/A176GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/619/A176/table1 (Information on the 6 giants)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/619/A176/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/619/A176/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/619/A176/table1?GETtext/xml+votable180.050000true288.85883333-16.099194440.005555555555555556Cone search capability for table J/A+A/619/A176/table2 (Information on the main sequence stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/619/A176/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/619/A176/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/619/A176/table2?GETtext/xml+votable180.050000true288.927875-16.55138890.0055555555555555566/29045 29047 29728 297301.9867573869263685e-19 4.851276835901009e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/619/A176?format=asciidefaultJ/A+A/619/A176/table1Information on the 6 giantsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCWWCurtis et al. (2013, Cat. J/AJ/145/134) IDmeta.id;meta.mainintGaiaGaia DR2 (Cat. I/335) IDmeta.idRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainExptimeExposure time (1)stime.duration;obs.exposureintObs.DateObservation datetime.epoch;obsnullableObs.TimeObservaiton time (beginning obs) (hh:mm:ss.sss)time.epochnullablePlxGaia DR2 Parallaxmaspos.parallaxfloate_PlxError on Gaia Plxmasstat.error;pos.parallaxfloatpmRAGaia DR2 proper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.rafloate_pmRAError on Gaia DR2 pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia DR2 proper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDEError on Gaia DR2 pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatGmagGaia DR2 G magnitudemagphot.mag;em.optfloatGBPmagGaia DR2 G_BP magnitudemagphot.mag;em.opt.BfloatGRPmagGaia DR2 G_RP magnitudemagphot.mag;em.opt.RfloatRVGaia DR2 radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVError on Gaia DR2 RVkm/sstat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/619/A176/table2Information on the main sequence starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCWWCurtis et al. (2013, Cat. J/AJ/145/134) IDmeta.id;meta.mainintGaiaGaia DR2 (Cat. I/345) IDmeta.idRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainNrNumber of exposures in ESO ADP archive (1)meta.numberintPlxGaia DR2 Parallaxmaspos.parallaxfloate_PlxError on Gaia Plxmasstat.error;pos.parallaxfloatpmRAGaia DR2 proper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.rafloate_pmRAError on Gaia DR2 pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia DR2 proper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDEError on Gaia DR2 pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatGmagGaia DR2 G magnitudemagphot.mag;em.optfloatGBPmagGaia DR2 G_BP magnitudemagphot.mag;em.opt.BfloatGRPmagGaia DR2 G_RP magnitudemagphot.mag;em.opt.RfloatRV? Gaia DR2 radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV? Error on Gaia DR2 RVkm/sstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/619/A176/table3RV, Vrot, atmospheric parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCWWCurtis et al. (2013, Cat. J/AJ/145/134) IDmeta.id;meta.mainintn_CWW[*] * CWW58 is binarymeta.notecharSNRSignal-to-noise ratiostat.snrintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVError on RVkm/sstat.errorfloatNrNumber of spectra co-addedmeta.numberintTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? Error on TeffKstat.error;phys.temperature.effectiveintnullablelogg? Gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Error on logglog(cm.s**-2)stat.errorfloatnullable[M/H]? Total metallicityphys.abund.Zfloatnullablee_[M/H]? Error on metallicitystat.error;phys.abundfloatnullablexi? Microturbulent velocitykm/sphys.velocfloatnullablee_xi? Error on xikm/sstat.errorfloatnullablenFeI? Number of FeI linesmeta.numberintnullablenFeII? Number of FeII linesmeta.numberintnullablevsini? Rotation velocitykm/sphys.veloc.rotatfloatnullablee_vsini? Error on vsinikm/sstat.error;phys.veloc.rotatfloatnullableInstInstrument (1)meta.id;instrcharMass? Mass from isochronesolMassphys.massfloatnullablee_Mass? Error on masssolMassstat.error;phys.massfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/619/A176/abundLight, alpha element (table4), Fe-peak element (table5) and neutron-capture element (table6) abundances (+ Sun)LiLTELiI (LTE) abundancephys.abundfloatTiITitanium I abundancephys.abundfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCWWCurtis et al. (2013, Cat. J/AJ/145/134) ID (0 for Sun)meta.id;meta.mainintl_LiNLTEUpper limit flag in LiNLTEmeta.code.errorcharLiNLTE? LiI (NLTE) abundancephys.abundfloatnullableO? Oxygen abundancephys.abundfloatnullableNaLTESodium (LTE) abundancephys.abundfloate_NaLTE? rms uncertainty on Na (LTE)stat.errorfloatnullableNaNLTE? Sodium (NLTE) abundancephys.abundfloatnullablee_NaNLTE? rms uncertainty on Na (NLTE)stat.errorfloatnullableMgMagnesium abundancephys.abundfloate_Mg? rms uncertainty on Mgstat.errorfloatnullableAlAluminum abundancephys.abundfloate_Al? rms uncertainty on Alstat.errorfloatnullableSiSilicon abundancephys.abundfloate_Si? rms uncertainty on Sistat.errorfloatnullableCaCalcium abundancephys.abundfloate_Ca? rms uncertainty on Castat.errorfloatnullablee_TiI? rms uncertainty on TiIstat.errorfloatnullableTiIITitanium II abundancephys.abundfloate_TiII? rms uncertainty on TiIIstat.errorfloatnullableScIScandium I abundancephys.abundfloate_ScI? rms uncertainty on ScIstat.errorfloatnullableVVanadium abundancephys.abundfloate_V? rms uncertainty on Vstat.error;pos.cartesian.yfloatnullableCoCobalt abundancephys.abundfloate_Co? rms uncertainty on Costat.errorfloatnullableNiNichel abundancephys.abundfloate_Ni? rms uncertainty on Nistat.errorfloatnullableCuCopper abundancephys.abundfloate_Cu? rms uncertainty on Custat.errorfloatnullableZnZinc abundancephys.abundfloatYYttrium II abundancephys.abundfloate_Y? rms uncertainty on Y IIstat.error;pos.cartesian.yfloatnullableZrIZirconium I abundancephys.abundfloatZrIIZirconium II abundancephys.abundfloate_ZrII? rms uncertainty on Zr IIstat.errorfloatnullableBaBarium II abundancephys.abundfloate_Ba? rms uncertainty on Ba IIstat.errorfloatnullableLaLanthanum II abundancephys.abundfloate_La? rms uncertainty on La IIstat.errorfloatnullableCeCerium II abundancephys.abundfloate_Ce? rms uncertainty on Ce IIstat.errorfloatnullableEuEuropium II abundancephys.abundfloatJ/A+A/619/A176/table8Mean [X/Fe] for giants, dwarfs, total samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[X/Fe]Parameter [X/Fe] (for Fe: [Fe/H])meta.id;stat.fit.paramcharmeanGMean [X/Fe] for giantsphys.abundfloatrmsGrms uncertainty on [X/Fe] for giantsstat.errorfloatNrGNumber of giantsmeta.numberintmeanD? Mean [X/Fe] for dwarfsphys.abundfloatnullablermsD? rms uncertainty on [X/Fe] for dwarfsstat.errorfloatnullableNrD? Number of dwarfsmeta.numberintnullablemeanMean [X/Fe] for total samplephys.abundfloatrmsrms uncertainty on mean [X/Fe] for total samplestat.errorfloatNrNumber of stars for total samplemeta.numberint