J/A+A/505/139ivo://CDS.VizieR/J/A+A/505/139doi:10.26093/cds/vizier.35050139CDSCarretta E.Bragaglia A.Gratton R.G.Lucatello S.2017-06-30T05:49:18Z2009-12-10T11:57:03ZCDS support team

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

cds-question@unistra.frglobular-star-clustersgiant-starschemical-abundancesWe present homogeneous abundance determinations for iron and some of the elements involved in the proton-capture reactions (O, Na, Mg, Al, and Si) for 202 red giants in 17 Galactic globular clusters (GCs) from the analysis of high-resolution UVES spectra obtained with the FLAMES facility at the ESO VLT2 telescope. Our programme clusters span almost the whole range of the metallicity distribution of GCs and were selected to sample the widest range of global parameters (horizontal-branch morphology, masses, concentration, etc). In this paper we focus on the discussion of the Na-O and Mg-Al anticorrelations and related issues. Our study finds clear Na and O star-to-star abundance variations, exceeding those expected from the error in the analysis, in all clusters. Variations in Al are present in all but a few GCs. Finally, a spread in abundances of Mg and Si are also present in a few clusters. Mg is slightly less overabundant and Si slightly more overabundant in the most Al-rich stars.2009A&A...505..139Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/505/139CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/455/271 : Abundances of red giants in NGC 6441 (Gratton+, 2006)J/A+A/464/927 : Abundances of red giants in NGC 6752 (Carretta+, 2007)J/A+A/464/953 : Abundances of red giants in NGC 6441 (Gratton+, 2007)J/A+A/464/939 : Abundances of red giants in NGC 6218 (Carretta+, 2007)J/A+A/464/967 : Abundances of red giants in NGC 6388 (Carretta+, 2007)J/A+A/505/117 : Abundances of red giants in 15 GC (Carretta+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/505/139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/505/139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/505/139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/505/139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/505/139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/505/139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/505/139/stars (ID, positions, magnitudes, RVs, atmospheric parameters and abundances for stars in 17 GCs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/505/139/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/505/139/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/505/139/stars?GETtext/xml+votable180.050000true6.07032083-72.1970750.0055555555555555566/12405 12943 16647 21017 24843 30769 31019 31115 31416-31417 33321 37294 37636 38465 42076 42955 47125 47168 47970-47971 48434 484402.367228618189496e-19 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/505/139?format=asciiOpticaldefaultJ/A+A/505/139/starsID, positions, magnitudes, RVs, atmospheric parameters and abundances for stars in 17 GCsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGCNGC numbermeta.id.parentintIDStar IDmeta.id;meta.mainintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainBmag? Johnson B magnitudemagphot.mag;em.opt.BfloatnullableVmag? Johnson V magnitudemagphot.mag;em.opt.VfloatnullableIcmag? Cousins I magnitudemagphot.mag;em.opt.IfloatnullableKmag? 2MASS K magnitudemagphot.mag;em.IR.KfloatnullableHRVHeliocentric radial velocity (in grating HR11)km/sspect.dopplerVeloc;pos.heliocentricfloate_HRVrms uncertainty on HRVkm/sstat.errorfloatTeffEffective temperatureKphys.temperature.effectiveintloggGravitylog(cm.s**-2)phys.gravityfloat[A/H]Input metallicitylog(Sun)phys.abundfloatvtMicroturbulent velocitykm/sphys.velocfloato_[FeI/H]Number of FeI linesmeta.numberint[FeI/H]Metallicity [FeI/H]Ilog(Sun)phys.abund.Zfloate_[FeI/H]rms uncertainty on [FeI/H]log(Sun)stat.error;phys.abundfloato_[FeII/H]Number of FeII linesmeta.numberint[FeII/H]Metallicity [FeII/H]log(Sun)phys.abund.Zfloate_[FeII/H]rms uncertainty on [FeII/H]log(Sun)stat.error;phys.abundfloato_[O/Fe]Number of O linesmeta.numberintl_[O/Fe]Limit flag on [O/Fe]meta.code.error;phys.abundchar[O/Fe]? [O/Fe] abundancelog(Sun)phys.abundfloatnullablee_[O/Fe]? rms uncertainty on [O/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[Na/Fe]Number of Na linesmeta.numberint[Na/Fe]? [Na/Fe] abundancelog(Sun)phys.abundfloatnullablee_[Na/Fe]? rms uncertainty on [Na/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[Mg/Fe]Number of Mg linesmeta.numberint[Mg/Fe]? [Mg/Fe] abundancelog(Sun)phys.abundfloatnullablee_[Mg/Fe]? rms uncertainty on [Mg/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[Al/Fe]Number of Al linesmeta.numberintl_[Al/Fe]Limit flag on [Al/Fe]meta.code.error;phys.abundchar[Al/Fe]? [Al/Fe] abundancelog(Sun)phys.abundfloatnullablee_[Al/Fe]? rms uncertainty on [Al/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[Si/Fe]Number of Si linesmeta.numberint[Si/Fe]? [Si/Fe] abundancelog(Sun)phys.abundfloatnullablee_[Si/Fe]? rms uncertainty on [Si/Fe]log(Sun)stat.error;phys.abundfloatnullableerrMean errors on atmospheric parameters and abundances in this clustermeta.ref.urlcharJ/A+A/505/139/table6Sensitivity to errors in Teff, logg, Vt, [A/H]recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGCNGC numbermeta.id.parentintprimaryDMg1Delta[Mg/Fe] for Delta Teff=+50Kstat.errorfloatDAl1Delta[Al/Fe] for Delta Teff=+50Kstat.errorfloatDSi1Delta[Si/Fe] for Delta Teff=+50Kstat.errorfloatDMg2Delta[Mg/Fe] for Delta Vt=+0.1km/sstat.errorfloatDAl2Delta[Al/Fe] for Delta Vt=+0.1km/sstat.errorfloatDSi2Delta[Si/Fe] for Delta Vt=+0.1km/sstat.errorfloatDMg3Delta[Mg/Fe] for Delta logg=+0.2dexstat.errorfloatDAl3Delta[Al/Fe] for Delta logg=+0.2dexstat.errorfloatDSi3Delta[Si/Fe] for Delta logg=+0.2dexstat.errorfloatDMg4Delta[Mg/Fe] for Delta [A/H]=+0.1dexstat.errorfloatDAl4Delta[Al/Fe] for Delta [A/H]=+0.1dexstat.errorfloatDSi4Delta[Si/Fe] for Delta [A/H]=+0.1dexstat.errorfloatObsObservations for this clustermeta.ref.urlcharStarsStars observed in this clustermeta.ref.urlcharJ/A+A/505/139/table8Errors on abundances of FeI, FeII, O, Na, Mg Al, Si for 17 GCsNGCNGC designationmeta.id.parentintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElement (1)phys.atmol.elementcharerrTError in abundance due to Tefflog(Sun)stat.errorfloaterrgError in abundance due to logglog(Sun)stat.errorfloaterrAError in abundance due to [A/H]log(Sun)stat.errorfloaterrVError in abundance due to Vtlog(Sun)stat.errorfloatNlinesNumber of linesmeta.numberinterrEWError in abundance due to EWlog(Sun)stat.errorfloaterr1Error in abundance due to Teff+Vt+EWlog(Sun)stat.errorfloaterr2Error in abundance due to alllog(Sun)stat.errorfloatJ/A+A/505/139/table1Log of observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGCNGC numbermeta.id;meta.mainintObs.DateDate of observationtime.epochnullableObs.TimeUT time of the beginning of the observationtime.epochnullableExpTimeExposure timestime.duration;obs.exposureintAirmassAirmass at the beginning of the observationobs.airMassfloat