J/A+A/659/A122ivo://CDS.VizieR/J/A+A/659/A122doi:10.26093/cds/vizier.36590122CDSCarretta E.Bragaglia A.2024-08-13T20:01:22Z2022-03-15T07:08:27ZCDS support team

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

cds-question@unistra.frglobular-star-clustersmetallicitypopulation-ii-starsvisible-astronomyNGC 6388 is one of the most massive Galactic globular clusters (GC) and it is an old, metal-rich, Galactic bulge cluster. By exploiting previous spectroscopic observations we were able to bypass the uncertainties in membership related to the strong field stars contamination. We present the abundance analysis of 12 new giant stars with UVES spectra and 150 giants with GIRAFFE spectra acquired at the ESO-VLT. We derived radial velocities, atmospheric parameters and iron abundances for all stars. When combined to previous data, we obtain a grand total of 185 stars homogeneously analysed in NGC 6388 from high-resolution spectroscopy. The average radial velocity of the 185 stars is 81.2+/-0.7, rms=9.4km/s. We obtain an average metallicity [Fe/H]=-0.480dex, rms=0.045 dex (35 stars) and [Fe/H]=-0.488dex, rms=0.040dex (150 stars) from the UVES and GIRAFFE samples, respectively. Comparing these values to internal errors in abundance, we exclude the presence of a significant intrinsic metallicity spread within the cluster. Since about a third of giants in NGC 6388 is claimed to belong to the anomalous red giants in the HST pseudo-colour map defining the so-called type-II GCs, we conclude that either enhanced metallicity is not a necessary requisite to explain this classification (as also suggested by the null iron spread for NGC 362) or NGC 6388 is not a type-II globular cluster.2022A&A...659A.122Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/659/A122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/505/117 : Red giants abundances in 15 globular clusters (Carretta+, 2009)J/ApJ/769/107 : RVs and [Fe/H] of star members of NGC 6388 (Lanzoni+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/659/A122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/659/A122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/659/A122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/659/A122https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/659/A122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/659/A122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/659/A122/table23 (ID, positions, magnitudes, radial velocity (table 2) and iron abundance (neutral and ionised) (table 3) of the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/659/A122/table23?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/659/A122/table23?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/659/A122/table23?GETtext/xml+votable180.050000true264.08082611-44.7331650.0055555555555555566/42314 423368.650015785639275e-20 4.826256797203527e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/659/A122?format=asciiOpticaldefaultJ/A+A/659/A122/table23ID, positions, magnitudes, radial velocity (table 2) and iron abundance (neutral and ionised) (table 3) of the starsSampleKind of spectrum (1)meta.idchar[A/H]Metallicity of atmospheric modelphys.abund.ZfloatVtMicroturbulent velocitykm/sphys.velocfloato_FeINumber of FeI linesmeta.numberint[Fe/H]INeutral iron abundancephys.abund.FefloatrmsFeIrms of neutral iron abundancestat.errorfloato_FeIINumber of FeII linesmeta.numberint[Fe/H]II? Ionised iron abundancephys.abund.FefloatnullablermsFeIIrms of ionised iron abundancestat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharStarStar IDmeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintS/NSignal-to-Noise ratiostat.snrintRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainVmagWFI magnitude in V bandmagphot.mag;em.opt.VfloatBmag? WFI magnitude in B bandmagphot.mag;em.opt.BfloatnullableKsmag? Ks magnitude from 2MASSmagphot.mag;em.IR.KfloatnullableWFI[0/1] WFI photometry present (=1) or not (=0)meta.codeintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatTeffStar TeffKphys.temperature.effectiveintloggStar surface gravitylog(cm.s**-2)phot.sbfloat