J/ApJ/655/144ivo://CDS.VizieR/J/ApJ/655/144doi:10.26093/cds/vizier.16550144CDSMei S.Blakeslee J.P.Cote P.Tonry J.L.West M.J.Ferrarese L.,Jordan A.Peng E.W.Anthony A.Merritt D.2021-08-04T07:09:04Z2014-04-23T13:18:26ZCDS support team

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

cds-question@unistra.frgalaxy-clustersvisible-astronomysloan-photometryradial-velocityThe ACS Virgo Cluster Survey consists of HST-ACS Advance Camera for Surveys) imaging for 100 early-type galaxies in the Virgo Cluster, observed in the F475W (~SDSS g) and F850LP (~SDSS z) filters. We derive distances for 84 of these galaxies using the method of surface brightness fluctuations (SBFs), present the SBF distance catalog, and use this database to examine the three-dimensional distribution of early-type galaxies in the Virgo Cluster. The SBF distance moduli have a mean (random) measurement error of 0.07mag (0.5Mpc), or roughly 3 times better than previous SBF measurements for Virgo Cluster galaxies. Five galaxies lie at a distance of d~23Mpc and are members of the W' cloud. The remaining 79 galaxies have a narrow distribution around our adopted distance of <d>=16.5+/-0.1 (random mean error) +/-1.1Mpc (systematic). The rms distance scatter of this sample is {sigma}(d)=0.6+/-0.1Mpc, with little or no dependence on morphological type or luminosity class (i.e., 0.7+/-0.1 and 0.5+/-0.1Mpc for the giants and dwarfs, respectively). The back-to-front depth of the cluster measured from our sample of early-type galaxies is 2.4+/-0.4Mpc (i.e., +/-2{sigma} of the intrinsic distance distribution). The M87 (cluster A) and M49 (cluster B) subclusters are found to lie at distances of 16.7+/-0.2 and 16.4+/-0.2Mpc, respectively. There may be a third subcluster associated with M86. A weak correlation between velocity and line-of-sight distance may be a faint echo of the cluster velocity distribution not having yet completely virialized. In three dimensions, Virgo's early-type galaxies appear to define a slightly triaxial distribution, with axis ratios of (1:0.7:0.5). The principal axis of the best-fit ellipsoid is inclined ~20{deg}-40{deg} from the line of sight, while the galaxies belonging to the W' cloud lie on an axis inclined by ~10{deg}-15{deg}.2007ApJ...655..144Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/655/144CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/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/ApJS/171/101 : ACS Virgo cluster Survey. XII. (Jordan+, 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/ApJ/655/144https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/655/144http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/655/144https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/655/144https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/655/144http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/655/144GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/655/144/table1 (SBF (Surface Brightness Fluctuations) distances for ACS Virgo Cluster Survey (ACSVCS) galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/655/144/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/655/144/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/655/144/table1?GETtext/xml+votable180.050000true187.4449583338.0004166670.0055555555555555565/6935 6941 6978 6/26361 26362 26542 27718 27719 27721 27724 27728 27730 27731 27733 27734 27735 27736 27738 27739 27756 27763 27769 27771 27773 27774 27859 27861 27862 27904 27906 27907 27908 27910 27916 27919 27936 27938 27939 27943 27944 27945 27946 27948 27951 27960 28032 28033 28037 28038 28044 28045https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/655/144?format=asciiOpticaldefaultJ/ApJ/655/144/table1SBF (Surface Brightness Fluctuations) distances for ACS Virgo Cluster Survey (ACSVCS) galaxiesACSVCS[1/100] ACSVCS number (Cote et al. 2004, Cat. J/ApJS/163/223)meta.id;meta.mainintprimaryVCCVirgo Cluster Catalog number (VCC, see Binggeli et al. 1985, Cat. J/AJ/90/1681)meta.idint(g-z)0? (F475W-F850LP)_0_ colour index (1)magphot.colorfloatnullablee_(g-z)0? rms uncertainty on (g-z)0magstat.errorfloatnullableM850? Absolute SBF magnitude in z_850_magphys.magAbsfloatnullablee_M850? rms uncertainty on M850magstat.errorfloatnullablef_M850Notes about M850 results (5)meta.codecharm-M? Distance modulus (2)magphot.mag.distModfloatnullablee_m-M? rms uncertainty on m-Mmagstat.errorfloatnullableBTmagB_T_ magnitude (3)magphot.mag;em.opt.Bfloat<RV>Mean radial velocity (4)km/sspect.dopplerVeloc;stat.meaninte_<RV>rms uncertainty on <RV>km/sstat.errorintMTypeMorphological type (3)src.morph.typecharONameOther name(s)meta.idcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar_RAPositions from Paper I (Cote et al., 2004, J/ApJS/163/223 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Paper I (Cote et al., 2004, J/ApJS/163/223 (declination part)degpos.eq.dec;meta.main