J/ApJS/245/5ivo://CDS.VizieR/J/ApJS/245/5doi:10.26093/cds/vizier.22450005CDSBailin J.2021-07-07T16:55:36Z2020-04-29T09:55:43ZCDS support team

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

cds-question@unistra.frglobular-star-clustersmetallicityastronomical-reference-materialsWe present an up-to-date catalog of intrinsic iron abundance spreads in the 55 Milky Way globular clusters (GCs) for which sufficiently precise spectroscopic measurements are available. Our method combines multiple data sets when possible to improve the statistics, taking into account the fact that different methods and instruments can lead to systematically offset metallicities. Only high spectral resolution (R>14000) studies that measure the equivalent widths of individual iron lines are found to have uncertainties on the metallicities of the individual stars that can be calibrated sufficiently well for the intrinsic dispersion to be separated cleanly from a random measurement error. The median intrinsic iron spread is found to be 0.045dex, which is small but unambiguously measured to be nonzero in most cases. There is large variation between clusters, but more luminous GCs, above 10^5^L_{sun}_, have increasingly large iron spreads on average; no trend between the iron spread and metallicity is found.2019ApJS..245....5Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/245/5CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/195 : Globular Clusters in the Milky Way (Harris, 1996)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)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/464/927 : Abundances of red giants in NGC 6752 (Carretta+, 2007)J/A+A/505/139 : Abundances of red giants in 17 GCs (Carretta+, 2009)J/A+A/505/117 : Abundances of red giants in 15 GCs (Carretta+, 2009)J/A+A/520/A95 : Abundances of red giants in M54 and Sgr dSph (Carretta+, 2010)J/ApJ/754/91 : Abundances and velocities of NGC 6397 stars (Lovisi+, 2012)J/A+A/554/A81 : Abundances of 16 giants in M75 (Kacharov+, 2013)J/MNRAS/435/3667 : Equivalent widths of 6 NGC5694 stars (Mucciarelli+, 2013)J/A+A/561/A87 : FLAMES observations of Terzan 8 (Carretta+, 2014)J/A+A/564/A60 : NGC 4833 Na-O measured with FLAMES (Carretta+, 2014)J/ApJ/795/22 : Iron abundance of Terzan 5 stars (Massari+, 2014)J/MNRAS/446/3130 : NGC5694 RVs and metallicities (Bellazzini+, 2015)J/ApJ/804/109 : Equivalent widths of RGB stars in NGC 5053 (Boberg+, 2015)J/A+A/583/A69 : NGC 6139 BV photometry (Bragaglia+, 2015)J/ApJ/810/148 : Red giant abundances in NGC 2808 (Carretta, 2015)J/A+A/578/A116 : Abundances of red giants in NGC6093 (M80) (Carretta+, 2015)J/ApJ/813/97 : M62 (NGC 6266) giant branch stars abundances (Lapenna+, 2015)J/MNRAS/450/815 : Red giants in NGC 5286 (Marino+, 2015)J/ApJ/801/69 : Iron EWs for 21 giant stars of NGC3201 (Mucciarelli+, 2015)J/MNRAS/449/3889 : Detailed abundances of 15 stars in NGC4833 (Roederer+, 2015)J/AJ/149/204 : Spectroscopy of 25 stars in M68 (Schaeuble+, 2015)J/ApJ/824/5 : Chemical abundances in NGC 5024 (M53) (Boberg+, 2016)J/A+A/590/A9 : RGB stars in Galactic GC stellar parameters (Dias+, 2016)J/A+A/588/A148 : NGC 6397 stars MUSE spectra (Husser+, 2016)J/AJ/152/21 : Abundances for red giants in NGC6342 & NGC6366 (Johnson+, 2016)J/ApJ/824/73 : Abundances of NGC 6362 member stars (Mucciarelli+, 2016)J/A+A/594/A79 : NGC 6121 turnoff and subgiant stars abundances (Spite+, 2016)J/A+A/592/A66 : NGC 2808 AGB and RGB stars Na abundance (Wang+, 2016)J/A+A/607/A44 : FLAMES observations of NGC6535 (Bragaglia+, 2017)J/A+A/600/A118 : Abundances of red giant stars in NGC6093 (Carretta+, 2017)J/ApJ/836/168 : Abundances & RVs for stars near NGC6273 (Johnson+, 2017)J/AJ/154/155 : Abundance variations in the GC NGC 6229 (Johnson+, 2017)J/ApJ/846/23 : High-resolution spectra of 9 RGBs in NGC6681 (O'Malley+, 2017)J/MNRAS/464/2730 : M28 red giant branch stars abundances (Villanova+, 2017)J/A+A/607/A135 : NGC 104, 6121 & 6809 AGB & RGBs Na abundance (Wang+, 2017)J/A+A/616/A12 : Gaia DR2 sources in GC and dSph (Gaia Collaboration+, 2018)J/AJ/155/71 : RGB & HB members of the bulge cluster NGC 6569 (Johnson+, 2018)J/ApJS/237/18 : Cr, Co & Ni abundances for metal-poor red giants (Kirby+, 2018)J/ApJ/859/75 : NGC 5824 giant star members from VLT obs. (Mucciarelli+, 2018)J/A+A/622/A191 : 885 globular cluster giants abundances (Masseron+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/245/5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/245/5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/245/5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/245/5https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/245/5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/245/5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/245/5/table1 (Derived dispersions {sigma}_0_ and average metallicity [Fe/H] for each cluster)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/245/5/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/245/5/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/245/5/table1?GETtext/xml+votable180.050000true6.0223292-72.08144440.0055555555555555566/6389 9436 9666 10008 10321 10336 12405 12943 16647 19091 21017 24843 25873 27981 27986 28705 28769 28815 28882 28905 28970 28973 29216 30378 30769 30998 31019 31043 31115 31417 33321 33330 34242 37294 38465 41304 41522 42076 42314 42700 42761 42841 42955 42990 43125 43227 44086 44220 47125 47868 47903 47971 48035 48434 48698https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/245/5?format=asciidefaultJ/ApJS/245/5/table1Derived dispersions {sigma}_0_ and average metallicity [Fe/H] for each clusterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster identifiermeta.id;meta.maincharONameAlternative cluster namemeta.idchar[Fe/H][-2.5/-0.09] Average metallicityphys.abund.Z;stat.meanfloate_[Fe/H][0.003/0.03] Uncertainty in [Fe/H]stat.error;phys.abund.Fefloatsigma0[0/0.3] Derived intrinsic metallicity dispersionphys.abund.Z;instr.dispersionfloatE_sigma0[0.003/0.2] Upper uncertainty in sigma0stat.error;stat.maxfloate_sigma0[0/0.03] Lower uncertainty in sigma0stat.errorfloatRefReference code(s) (see refs.dat file)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar_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/ApJS/245/5/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintBibCodeBibcode of the referencemeta.bib.bibcodecharAuthFirst author's name(s)meta.bib.authorcharCommVizieR catalog referencemeta.id;meta.datasetchar