J/MNRAS/455/820ivo://CDS.VizieR/J/MNRAS/455/820doi:10.26093/cds/vizier.74550820CDSOldham L.J.Auger M.W.2024-08-15T20:17:06Z2015-11-18T09:53:45ZCDS support team

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

cds-question@unistra.frgalaxiesglobular-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryWe present a new photometric catalogue of the rich globular cluster (GC) system around M87, the brightest cluster galaxy in Virgo. Using archival Next Generation Virgo Cluster Survey images in the ugriz bands, observed with Canada-France-Hawaii Telescope/MegaPrime, we perform a careful subtraction of the galaxy's halo light in order to detect objects at small galactocentric radii as well as in the wider field, and find 17620 GC candidates over a radius range from 1.3 to 445kpc with g<24mag. By inferring their colour, radial and magnitude distributions in a Bayesian way, we find that they are well described as a mixture of two GC populations and two distinct contaminant populations, but confirm earlier findings of radius-dependent colour gradients in both GC populations. This is consistent with a picture in which the more enriched GCs reside deeper in the galaxy's potential well, indicating a role for dissipative collapse in the formation of both the red and the blue GCs.2016MNRAS.455..820Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/455/820CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/73/671 : M87 globular clusters BVI photometry (Couture+, 1990)J/AJ/106/493 : Globular clusters in M87 (Lee+, 1993)J/AJ/115/1801 : VRI photometry of M87 globular clusters (Harris+ 1998)J/ApJ/513/733 : Globular cluster system in M87 (Kundu+, 1999)J/ApJ/559/812 : Globular cluster system in M87 (Hanes+, 2001)J/ApJ/613/279 : ACS Virgo Cluster Survey. III. M87 (Jordan+, 2004)J/AJ/131/866 : Hot populations in M87 globular clusters (Sohn+, 2006)J/ApJ/703/42 : HST photometry of M87 globular clusters (Peng+, 2009)J/ApJS/197/33 : The M87 globular cluster system (Strader+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/455/820https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/455/820http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/455/820https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/455/820https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/455/820http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/455/820GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/455/820/catalog (Globular cluster candidate catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/455/820/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/455/820/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/455/820/catalog?GETtext/xml+votable180.050000true187.803911.48630.0055555555555555565/6941 6984 6/27743 27773 27914 27944https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/455/820?format=asciiOpticalInfrareddefaultJ/MNRAS/455/820/catalogGlobular cluster candidate cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainumag? AB magnitude in CFHT/MegaCam u-bandmagphot.mag;em.opt.Ufloatnullablee_umag? Uncertainty in u-band magnitudemagstat.error;phot.mag;em.opt.Ufloatnullablegmag? AB magnitude in CFHT/MegaCam g-bandmagphot.mag;em.opt.Bfloatnullablee_gmag? Uncertainty in g-band magnitudemagstat.error;phot.mag;em.opt.Bfloatnullablermag? AB magnitude in CFHT/MegaCam r-bandmagphot.mag;em.opt.Rfloatnullablee_rmag? Uncertainty in r-band magnitudemagstat.error;phot.mag;em.opt.Rfloatnullableimag? AB magnitude in CFHT/MegaCam i-bandmagphot.mag;em.opt.Ifloatnullablee_imag? Uncertainty in i-band magnitudemagstat.error;phot.mag;em.opt.Ifloatnullablezmag? AB magnitude in CFHT/MegaCam z-bandmagphot.mag;em.opt.Ifloatnullablee_zmag? Uncertainty in z-band magnitudemagstat.error;phot.mag;em.opt.Ifloatnullablep(red)Probability of belonging to red GC populationstat.fit.goodnessfloate_p(red)Uncertainty in probability of belonging to red GC populationstat.errorfloatp(blue)Probability of belonging to blue GC populationstat.fit.goodnessfloate_p(blue)Uncertainty in probability of belonging to blue GC populationstat.errorfloatp(MW)Probability of belonging to Milky Way/Sagittarius stellar interloper populationstat.fit.goodnessfloate_p(MW)Uncertainty in probability of belonging to Milky Way/Sagittarius stellar interloper populationstat.errorfloatp(star)Probability of belonging to uniform-colour interloper populationstat.fit.goodnessfloate_p(star)Uncertainty in probability of belonging to uniform-colour interloper populationstat.errorfloatHRV? Velocity (1)km/sspect.dopplerVelocintnullablee_HRV? Velocity uncertainty (1)km/sstat.errorintnullable