J/ApJS/171/101ivo://CDS.VizieR/J/ApJS/171/101doi:10.26093/cds/vizier.21710101CDSJordan A.McLaughlin D.E.Cote P.Ferrarese L.Peng E.W.Mei S.,Villegas D.Merritt D.Tonry J.L.West M.J.2017-11-29T11:47:57Z2009-06-11T16:50:44ZCDS support team

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

cds-question@unistra.frglobular-star-clusterssurveysWe analyze the luminosity function of the globular clusters (GCs) belonging to the early-type galaxies observed in the ACS Virgo Cluster Survey. We have obtained maximum likelihood estimates for a Gaussian representation of the globular cluster luminosity function (GCLF) for 89 galaxies. We have also fit the luminosity functions with an "evolved Schechter function", which is meant to reflect the preferential depletion of low-mass GCs, primarily by evaporation due to two-body relaxation, from an initial Schechter mass function similar to that of young massive clusters in local starbursts and mergers. We find a highly significant trend of the GCLF dispersion {sigma} with galaxy luminosity, in the sense that the GC systems in smaller galaxies have narrower luminosity functions. The GCLF dispersions of our Galaxy and M31 are quantitatively in keeping with this trend, and thus the correlation between {sigma} and galaxy luminosity would seem more fundamental than older notions that the GCLF dispersion depends on Hubble type. We show that this narrowing of the GCLF in a Gaussian description is driven by a steepening of the cluster mass function above the classic turnover mass, as one moves to lower luminosity host galaxies. In a Schechter function description, this is reflected by a steady decrease in the value of the exponential cutoff mass scale. We argue that this behavior at the high-mass end of the GC mass function is most likely a consequence of systematic variations of the initial cluster mass function rather than long-term dynamical evolution.2007ApJS..171..101Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/171/101CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)J/A+A/343/86 : Virgo cluster radio luminosity function. I. (Gavazzi+ 1999)J/MNRAS/333/423 : Luminosity function of the Virgo Cluster (Trentham+, 2002)J/ApJS/153/223 : ACS Virgo Cluster Survey. I. (Cote+, 2004)J/ApJS/154/509 : ACS Virgo Cluster Survey. II. (Jordan+, 2004)J/ApJ/613/279 : ACS Virgo Cluster Survey. III. M87 (Jordan+, 2004)J/ApJS/164/334 : ACS Virgo Cluster Survey. VI. (Ferrarese+, 2006)J/ApJ/655/144 : ACS Virgo Cluster Survey. XIII. (Mei+, 2007)J/ApJ/681/197 : ACS Virgo Cluster Survey. XV. (Peng+, 2008)J/ApJS/180/54 : ACS Virgo Cluster Survey. XVI. (Jordan+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/171/101https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/171/101http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/171/101https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/171/101https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/171/101http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/171/101GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/171/101/galaxies (Galaxies studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/171/101/galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/171/101/galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/171/101/galaxies?GETtext/xml+votable180.050000true182.34291713.99250.0055555555555555565/6935 6941 6978 6/26361 26362 26542 27718 27719 27724 27728 27730 27731 27734 27736 27738 27739 27756 27763 27769 27773 27774 27859 27861 27862 27904 27907 27908 27910 27919 27936 27938 27939 27944 27945 27946 27948 27951 27960 28032 28033 28037 28038 28044 28045https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/171/101?format=asciiOpticaldefaultJ/ApJS/171/101/table1Luminosity Function Histograms for Globular Clusters and Expected ContaminantsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCCThe Virgo Cluster Catalog numbermeta.id;meta.mainintz1Mean z band magnitude of bin (1)magphot.mag;em.opt.IfloatNz1Total number of objects in the z bin (1)meta.numberintCz1Expected number of contaminants in the z bin (1)meta.numberfloatfz1GC completeness fraction in the z bin (1)meta.notefloatg1Mean g band magnitude of bin (1)magphot.mag;em.opt.BfloatNg1Total number of objects in the g bin (1)meta.numberintCg1Expected number of contaminants in the g bin (1)meta.numberfloatfg1GC completeness fraction in the g bin (1)meta.notefloatz2Mean z band magnitude of bin (2)magphot.mag;em.opt.IfloatNz2Total number of objects in the z bin (2)meta.numberintCz2Expected number of contaminants in the z bin (2)meta.numberfloatfz2GC completeness fraction in the z bin (2)meta.notefloatg2Mean g band magnitude of bin (2)magphot.mag;em.opt.BfloatNg2Total number of objects in the g bin (2)meta.numberintCg2Expected number of contaminants in the g bin (2)meta.numberfloatfg2GC completeness fraction in the g bin (2)meta.notefloatJ/ApJS/171/101/galaxiesGalaxies studiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCCVCC galaxy numbermeta.id;meta.mainintprimaryRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainBmag? Simbad B band magnitudemagphot.mag;em.opt.BfloatnullableVmag? Simbad V band magnitudemagphot.mag;em.opt.VfloatnullableMTypeSimbad morphological typesrc.morph.typechargalDisplay the VCC catalog original data (Bingelli et al 1985, Cat. J/AJ/90/1681)meta.ref.urlcharSimbadSimbad column added by the CDScharNEDSimbad column added by the CDSchar