J/A+A/430/411ivo://CDS.VizieR/J/A+A/430/411doi:10.26093/cds/vizier.34300411CDSGavazzi G.Donati A.Cucciati O.Sabatini S.Boselli A.Davies J.,Zibetti S.2017-12-15T10:55:34Z2005-03-08T17:07:51ZCDS support team

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

cds-question@unistra.frgalaxy-clustersccd-photometrygalaxy-classification-systemsWe report on a complete CCD imaging survey of 226 elliptical galaxies in the North-East quadrant of the Virgo cluster, representative of the properties of giant and dwarf elliptical galaxies in this cluster. We fit their radial light profiles with the Sersic r^1/n^ model of light distribution. We confirm the result of Graham & Guzman (2003AJ....125.2936G) that the apparent dichotomy between E and dE galaxies in the luminosity-<{mu}>_e_ plane no longer appears when other structural parameters are considered and can be entirely attributed to the onset of "core" galaxies at B_T_~-20.5mag. When "core" galaxies are not considered, E and dE form a unique family with n linearly increasing with the luminosity. For 90 galaxies we analyze the B-I color indices, both in the nuclear and in the outer regions. Both indices are bluer toward fainter luminosities. We find also that the outer color gradients do not show any significant correlation with the luminosity. The scatter in all color indicators increases significantly toward lower luminosities, e.g. galaxies fainter than B_T_~-15 have a B-I spread>0.5mag.2005A&A...430..411Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/430/411CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/106/199 : B-band photometry in Fornax and Virgo (Caon+ 1994)J/A+AS/127/367 : Virgo Photometry Catalogue (VPC) (Young+ 1998)J/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)J/AJ/108/1598 : Virgo cluster ellipticals. III. (Ferrarese+, 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/430/411https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/430/411http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/430/411https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/430/411https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/430/411http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/430/411GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/430/411/table2 (B-band parameters of the observed galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/430/411/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/430/411/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/430/411/table2?GETtext/xml+votable180.050000true184.412916714.27722220.0055555555555555565/6943 6978 7008 7011 6/27741-27743 27764-27765 27767 27860-27861 27863 27906-27908 27910 27916 27936 27938 27944 27946-27947 28038 28041https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/430/411?format=asciiOpticaldefaultJ/A+A/430/411/table2B-band parameters of the observed galaxiesBandsAvailable band(s)instr.bandpasscharNotesNotes (2)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCCVCC designation of the galaxymeta.id;meta.mainintONameOther name of the galaxymeta.idcharMTypeMorphological type from the VCC dE: dwarfs elliptical, E: giant ellipticalsrc.morph.typecharn_MType[N-] N: Nucleatedmeta.notecharPmagPhotographic magnitude m[p] from the VCC.magphot.mag;em.opt.BfloatSersicSersic index nstat.fit.paramfloatSuBr0Sersic extrapolation to r=0 of the central surface brightness {mu}_0_mag.arcsec**-2phot.mag.sbfloatBTmagTotal asymptotic magnitude B[T]magphot.mag;em.opt.BfloatC31Light concentration index C[31]meta.code;phys.composition.massLightRatiofloatSuBreMean effective surface brightnessmag.arcsec**-2phot.mag.sb;em.opt.BfloatreEffective major-axis radius r[e]arcsecphys.angSizefloatWFS[HV] Horizontal (H) or vertical (V) strip (1)meta.notecharRefReference to other works (3)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refchar_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.main