J/A+A/538/A69ivo://CDS.VizieR/J/A+A/538/A69doi:10.26093/cds/vizier.35380069CDSLieder S.Lisker T.Hilker M.Misgeld I.Durrell P.2018-01-02T13:42:49Z2012-05-19T15:00:06ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometryStudies of dwarf spheroidal (dSph) galaxies with statistically significant sample sizes are still rare beyond the Local Group, since these low surface brightness objects can only be identified with deep imaging data. In galaxy clusters, where they constitute the dominant population in terms of number, they represent the faint end slope of the galaxy luminosity function and provide important insight on the interplay between galaxy mass and environment. In this study we investigate the optical photometric properties of early-type galaxies (dwarf ellipticals (dEs) and dSphs) in the Virgo cluster core region, by analysing their location on the colour magnitude relation (CMR) and the structural scaling relations down to faint magnitudes, and by constructing the luminosity function to compare it with theoretical expectations.2012A&A...538A..69Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/538/A69CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)J/MNRAS/333/423 : Luminosity function of the Virgo Cluster (Trentham+, 2002)J/MNRAS/335/712 : R magnitude of cluster of galaxies (Trentham+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/538/A69https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/538/A69http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/538/A69https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/538/A69https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/538/A69http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/538/A69GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/538/A69/table3 (Properties of Virgo cluster objects found in this study but not included in the VCC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A69/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A69/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A69/table3?GETtext/xml+votable180.050000true186.0818212.327020.005555555555555556Cone search capability for table J/A+A/538/A69/table4 (Properties of VCC catalogued galaxies and spectroscopically confirmed cluster members investigated in this study)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A69/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A69/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A69/table4?GETtext/xml+votable180.050000true185.9106312.627730.0055555555555555565/6941 6/27772-27773 27936 27938 27944https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/538/A69?format=asciiOpticaldefaultJ/A+A/538/A69/table3Properties of Virgo cluster objects found in this study but not included in the VCCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/77] Galaxy sequential numbermeta.recordintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainVMAGAbsolute V magnitude in Virgo cluster distance (adopted m-M=31.09mag)magphys.magAbs;em.opt.Bfloate_VMAGrms uncertainty on VMAGmagstat.errorfloatIMAGAbsolute I magnitude in Virgo cluster distance (adopted m-M=31.09mag)magphys.magAbs;em.opt.Ifloate_IMAGrms uncertainty on IMAGmagstat.errorfloatV-IV-I colour index computed by the flux enclosed by an ellipse with half-light radius r50magphot.color;em.opt.V;em.opt.Ifloate_V-Irms uncertainty on V-Imagstat.error;phot.color;em.opt.VfloatellEllipticity at half-light aperturesrc.ellipticityfloatr50half-light radius determined by the half-light semi-major axis a50 and ellipticity of an ellipse by r50=a50SQRT(1-ell)pcphys.size.radiusintmueVEffective surface brightness in V-Band determined by the ellipse enclosing half of the total fluxmag.arcsec**-2phot.mag.sb;em.opt.VfloatRefLiterature reference catalogue if object was previously found (1)meta.ref;pos.frame;meta.tablecharJ/A+A/538/A69/table4Properties of VCC catalogued galaxies and spectroscopically confirmed cluster members investigated in this studySimbadNameSimbad column added by the CDSmeta.idcharz? Redshift taken from NEDsrc.redshiftfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCC? Galaxy VCC number (Binggeli et al., Cat. J/AJ/90/1681) (1)meta.id;meta.mainintnullableRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainVMAGAbsolute V magnitude in Virgo cluster distance (adopted m-M=31.09mag)magphys.magAbs;em.opt.Bfloate_VMAGrms uncertainty on VMAGmagstat.errorfloatIMAGAbsolute I magnitude in Virgo cluster distance (adopted m-M=31.09mag)magphys.magAbs;em.opt.Ifloate_IMAGrms uncertainty on IMAGmagstat.errorfloatV-IV-I colour index computed by the flux enclosed by an ellipse with half-light radius r50magphot.color;em.opt.V;em.opt.Ifloate_V-Irms uncertainty on V-Imagstat.error;phot.color;em.opt.VfloatellEllipticity at half-light aperturesrc.ellipticityfloatr50half-light radius determined by the half-light semi-major axis a50 and ellipticity of an ellipse by r50=a50SQRT(1-ell)pcphys.size.radiusintmueVEffective surface brightness in V-Band determined by the ellipse enclosing half of the total fluxmag.arcsec**-2phot.mag.sb;em.opt.VfloatNEDSimbad column added by the CDSmeta.ref.urlchar