J/A+A/601/A112ivo://CDS.VizieR/J/A+A/601/A112doi:10.26093/cds/vizier.36010112CDSPancino E.Romano D.Tang B.Tautvaisiene G.Casey A.R.Gruyters P.,Geisler D.San Roman I.Randich S.Alfaro E.J.Bragaglia A.,Flaccomio E.Korn A.J.Recio-Blanco A.Smiljanic R.Carraro G.,Bayo A.Costado M.T.Damiani F.Jofre P.Lardo C.de Laverny P.,Monaco L.Morbidelli L.Sbordone L.Sousa S.G.Villanova S.2025-09-15T20:00:32Z2017-05-16T07:21:03ZCDS support team

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

cds-question@unistra.frsurveysvisible-astronomyglobular-star-clusterschemical-abundanceseffective-temperatureWe use Gaia-ESO Survey iDR4 data to explore the Mg-Al anti-correlation in globular clusters, that were observed as calibrators, as a demonstration of the quality of Gaia-ESO Survey data and analysis. The results compare well with the available literature, within 0.1~[-] or less, after a small (compared to the Minternal spreads) offset between the UVES and the GIRAFFE data of 0.10-0.15dex was taken into account. In particular, we present for the first time data for NGC 5927, one of the most metal-rich globular clusters studied in the literature so far with [Fe/H]=-0.49dex, that was included to connect with the open cluster regime in the Gaia-ESO Survey internal calibration. The extent and shape of the Mg-Al anti-correlation provide strong constraints on the multiple population phenomenon in globular clusters. In particular, we studied the dependency of the Mg-Al anti-correlation extension with metallicity, present-day mass, and age of the clusters, using GES data in combination with a large set of homogenized literature measurements. We find a dependency with both metallicity and mass, that is evident when fitting for the two parameters simultaneously, but no significant dependency with age. We confirm that the Mg-Al anti-correlation is not seen in all clusters, but disappears for the less massive or most metal-rich ones. We also use our dataset to see whether a normal anti-correlation would explain the low [Mg/{alpha}] observed in some extragalactic globular clusters, but find that none of the clusters in our sample can reproduce it, and more extreme chemical compositions (like the one of NGC 2419) would be required. We conclude that GES iDR4 data already meet the requirements set by the main survey goals, and can be used to study in detail globular clusters even if the analysis procedures were not specifically designed for them.2017A&A...601A.112Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/601/A112CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/598/A5 : Gaia-ESO Survey iDR4 calibrators (Pancino+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/601/A112https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/601/A112http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/601/A112https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/601/A112https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/601/A112http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/601/A112GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/601/A112/table1 (Globular clusters list with basic properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/601/A112/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/601/A112/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/601/A112/table1?GETtext/xml+votable180.050000true6.0223292-72.08144440.005555555555555556Cone search capability for table J/A+A/601/A112/table2 (Member stars with parameters and abundances (corrected version))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/601/A112/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/601/A112/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/601/A112/table2?GETtext/xml+votable180.050000true5.3455417-72.08413890.005555555555555556Cone search capability for table J/A+A/601/A112/fig5 (*The [Al/Mg] indicators of the anti-correlation extension (Data behind Figure 5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/601/A112/fig5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/601/A112/fig5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/601/A112/fig5?GETtext/xml+votable180.050000true6.0223292-72.08144440.0055555555555555566/9436 9666 10321 10336 12405 12943 16647 19091 21017 24843 27981 30769 31019 31115 31417 33321 33323 33330 34242-34243 37294 37636 38465 41522 41852 42955 47125 47168 47971 48434https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/601/A112?format=asciiOpticaldefaultJ/A+A/601/A112/table1Globular clusters list with basic propertiesNGCNGC cluster identificationmeta.id.parentcharprimarySimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintANameCluster alternate namemeta.id;meta.mainchar[Fe/H]HCluster metallicity from Harris, 1996AJ....112.1487H, Cat. VII/195phys.abund.FefloatRVCluster radial velocity from Harris, 1996AJ....112.1487H, Cat. VII/195km/sphys.veloc;pos.heliocentricfloatlogMCluster logarithmic masslog(solMass)phys.massfloate_logMError on cluster masslog(solMass)stat.errorfloatr_logM[a/b] Reference for cluster mass (1)meta.ref;pos.framechar[Fe/H]GCluster metallicity from Gaia-ESO surveyphys.abund.Zfloate_[Fe/H]GError on cluster metallicitystat.error;phys.abund.FefloatRVGRadial velocity from Gaia-ESO surveykm/sphys.veloc;pos.heliocentricfloate_RVGError on radial velocitykm/sstat.errorfloatNstarNumber of member stars analyzedmeta.numberint_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/601/A112/table2Member stars with parameters and abundances (corrected version)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGESGES star ID based on sexagesimal coordinates, HHMMSSss+DDMMSSsmeta.id;meta.maincharTeff[4087/5386] Effective temperatureKphys.temperature.effectiveinte_Teff[36/199] Error on the effective temperatureKstat.error;phys.temperature.effectiveintlogg[1/4.5] Logarithm of surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.1/0.3] Error on surface gravitylog(cm.s**-2)stat.errorfloat[Fe/H][-2.1/-0.2] Metallicity based on iron abundancephys.abund.Zfloate_[Fe/H][0.05/0.2] Error on metallicitystat.error;phys.abund.FefloatlogAO[5.97/8.8]? O abundancephys.abundfloatnullablee_logAO[0.08/0.5]? Error on O abundancestat.errorfloatnullableNGCNGC cluster of which the star is membermeta.id.parentcharprimarySimbadSimbad column added by the CDSmeta.ref.urlcharlogANa[4/6.52]? Na abundancephys.abundfloatnullablee_logANa[0.04/0.1]? Error on Na abundancestat.errorfloatnullablelogAMg[5.5/7.71]? Mg abundancephys.abundfloatnullablee_logAMg[0.01/0.14]? Error on Mg abundancestat.errorfloatnullablelogAAl[4.69/6.9]? Al abundancephys.abundfloatnullablee_logAAl[0.01/0.2]? Error on Al abundancestat.errorfloatnullable_RAPositions from GES name (right ascension part)degpos.eq.ra;meta.main_DEPositions from GES name (declination part)degpos.eq.dec;meta.mainJ/A+A/601/A112/fig5*The [Al/Mg] indicators of the anti-correlation extension (Data behind Figure 5)NGCNGC number of the clustermeta.id;meta.maincharprimarySimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[Fe/H][-2.4/-0.38] Average [Fe/H] of the clusterphys.abund.Fe;stat.meanfloate_[Fe/H][0.04/0.15] Error on average [Fe/H]stat.error;phys.abund.Fefloat[Mg/Fe][0.13/0.56] Average [Mg/Fe] of the clusterphys.abund;stat.meanfloate_[Mg/Fe][0.028/0.26] Error on average [Mg/Fe]stat.error;phys.abundfloat[Al/Fe][-0.24/1.1] Average [Al/Fe] of the clusterphys.abund;stat.meanfloate_[Al/Fe][0.05/0.55] Error on average [Al/Fe]stat.error;phys.abundfloatsigAlMg[0.05/0.64] Spread in [Al/Mg] estimated as a standard deviationstat.stdev;phys.abund;arith.ratiofloatdelAlMg[0.18/2.31] Spread in [Al/Mg] estimated from the min and max valuesstat.param;phys.abund;arith.ratiofloatlogM[4.19/6.05] Logarithmic mass of the clusterlog(solMass)stat.error;phys.massfloate_logM[0.04/0.21] Error on LogMlog(solMass)stat.errorfloatrelAge[0.78/1.09]? Relative age parametertime.age;arith.ratiofloatnullableabsAge[10.75/13]? Age of the clusterGyrtime.agefloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main