J/A+A/643/A12ivo://CDS.VizieR/J/A+A/643/A12doi:10.26093/cds/vizier.36430012CDSCasali G.Magrini L.Frasca A.Bragaglia A.Catanzaro G.D'Orazi V.,Sordo R.Carretta E.Origlia L.Andreuzzi G.Fu X.Vallenari A.2022-06-20T10:03:32Z2020-10-27T07:30:22ZCDS support team

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

cds-question@unistra.fropen-star-clusterschemical-abundancesOpen clusters are excellent tracers of the chemical evolution of the Galactic disc. The spatial distribution of their elemental abundances, through the analysis of high-quality and high-resolution spectra, provides insight into the chemical evolution and mechanisms of element nucleosynthesis in regions characterised by different conditions (e.g. star formation efficiency and metallicity). In the framework of the Stellar Population Astrophysics (SPA) project, we present new observations and spectral analysis of four sparsely studied open clusters located in the solar neighbourhood, namely Collinder 350, Gulliver 51, NGC 7044, and Ruprecht 171. We exploit the HARPS-N spectrograph at the TNG telescope to acquire high-resolution optical spectra for 15 member stars of four clusters. We derive stellar parameters (Teff, logg, [Fe/H] and {xi) using both the equivalent width (EW) analysis and the spectral fitting technique. We compute elemental abundances for light, {alpha}-, iron-peak, and n-capture elements using the EW measurement approach. We investigate the origin of the correlation between metallicity and stellar parameters derived with the EW method for the coolest stars of the sample (Teff<4300K). The correlation is likely due to the challenging continuum setting and to a general inaccuracy of model atmospheres used to reproduce the conditions of very cool giant stars. We locate the properties of our clusters in the radial distributions of metallicity and abundance ratios, comparing our results with clusters from the Gaia-ESO and APOGEE surveys. We present the [X/Fe]-[Fe/H] and [X/Fe]-RGC trends for elements in common between the two surveys. Finally, we derive the C and Li abundances as a function of the evolutionary phase and compare them with theoretical models. The SPA survey, with its high-resolution spectra, allows us to fully characterise the chemistry of nearby clusters. With a single set of spectra, we provide chemical abundances for a variety of chemical elements, which are comparable to those obtained in two of the largest surveys combined. The metallicities and abundance ratios of our clusters fit very well in the radial distributions defined by the recent literature, reinforcing the importance of star clusters to outline the spatial distribution of abundances in our Galaxy. Moreover, the abundances of C and Li, modified by stellar evolution during the giant phase, agree with evolutionary prescriptions (rotation-induced mixing) for their masses and metallicities.2020A&A...643A..12Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/643/A12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/643/A12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/643/A12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/643/A12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/643/A12https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/643/A12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/643/A12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/643/A12/stars (stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/643/A12/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/643/A12/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/643/A12/stars?GETtext/xml+votable180.050000true267.1825951.164203060.005555555555555556Cone search capability for table J/A+A/643/A12/table8 (Elemental abundances of each star with Teff>4300K, in the form 12+log(X/H))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/643/A12/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/643/A12/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/643/A12/table8?GETtext/xml+votable180.050000true267.1825951.164203060.0055555555555555566/3680 29152 29154 31068https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/643/A12?format=asciidefaultJ/A+A/643/A12/starsstarsSNameSimbad namemeta.idcharDEJ2000Declination (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAbundDisplay the abundances for this Starmeta.ref.urlcharStarStar Identificationmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/643/A12/table8Elemental abundances of each star with Teff>4300K, in the form 12+log(X/H)o_TiINumber of TiI linesmeta.numberintCaIAbundance A(CaI) (1)phys.abundfloate_CaIError on A(CaI)stat.errorfloato_CaINumber of CaI linesmeta.numberintTiIAbundance A(TiI) (1)phys.abundfloate_TiIError on A(TiI)stat.errorfloate_SiIError on A(SiI)stat.errorfloato_SiINumber of SiI linesmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar Identificationmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainFeIAbundance A(FeI) (1)phys.abundfloate_FeIError on A(FeI)stat.errorfloato_FeINumber of FeI linesmeta.numberintFeIIAbundance A(FeII) (1)phys.abundfloate_FeIIError on A(FeII)stat.errorfloato_FeIINumber of FeII linesmeta.numberintAlIAbundance A(AlI) (1)phys.abundfloate_AlIError on A(AlI)stat.errorfloato_AlINumber of AlI linesmeta.numberintCIAbundance A(CI) (1)phys.abundfloate_CIError on A(CI)stat.errorfloato_CINumber of CI linesmeta.numberfloatCeIIAbundance A(CeII) (1)phys.abundfloate_CeIIError on A(CeII)stat.errorfloato_CeIINumber of CeII linesmeta.numberintCoIAbundance A(CoI) (1)phys.abundfloate_CoIError on A(CoI)stat.errorfloato_CoINumber of CoI linesmeta.numberintCrIAbundance A(CrI) (1)phys.abundfloate_CrIError on A(CrI)stat.errorfloato_CrINumber of CrI linesmeta.numberintEuII? Abundance A(EuII) (1)phys.abundfloatnullablee_EuII? Error on A(EuII)stat.errorfloatnullableo_EuII? Number of EuII linesmeta.numberfloatnullableLaIIAbundance A(LaII) (1)phys.abundfloate_LaIIError on A(LaII)stat.errorfloato_LaIINumber of LaII linesmeta.numberintLiI? Abundance A(LiI) (1)phys.abundfloatnullablee_LiI? Error on A(LiI)stat.errorfloatnullableo_LiI? Number of LiI linesmeta.numberfloatnullableMgIAbundance A(MgI) (1)phys.abundfloate_MgIError on A(MgI)stat.errorfloato_MgINumber of MgI linesmeta.numberintNaIAbundance A(NaI) (1)phys.abundfloate_NaIError on A(NaI)stat.errorfloato_NaINumber of NaI linesmeta.numberintNiIAbundance A(NiI) (1)phys.abundfloate_NiIError on A(NiI)stat.errorfloato_NiINumber of NiI linesmeta.numberintScIIAbundance A(ScII) (1)phys.abundfloate_ScIIError on A(ScII)stat.errorfloato_ScIINumber of ScII linesmeta.numberintSiIAbundance A(SiI) (1)phys.abundfloatTiIIAbundance A(TiII) (1)phys.abundfloate_TiIIError on A(TiII)stat.errorfloato_TiIINumber of TiII linesmeta.numberintVIAbundance A(VI) (1)phys.abundfloate_VIError on A(VI)stat.errorfloato_VINumber of VI linesmeta.numberintYIIAbundance A(YII) (1)phys.abundfloate_YIIError on A(YII)stat.errorfloato_YIINumber of YII linesmeta.numberintZrIAbundance A(ZrI) (1)phys.abundfloate_ZrIError on A(ZrI)stat.errorfloato_ZrINumber of ZrI linesmeta.numberintZrIIAbundance A(ZrII) (1)phys.abundfloate_ZrIIError on A(ZrII)stat.errorfloato_ZrIINumber of ZrII linesmeta.numberint