J/A+A/581/A11ivo://CDS.VizieR/J/A+A/581/A11doi:10.26093/cds/vizier.35810011CDSMoretti A.Bettoni D.Poggianti B.M.Fasano G.Varela J.D'Onofrio M.,Vulcani B.Cava A.Fritz J.Couch W.J.Moles M.Kjaergaard P.2018-01-04T08:21:41Z2015-12-11T08:14:42ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometryUsing V band photometry of the WINGS survey, we derive galaxy luminosity functions (LF) in nearby clusters. This sample is complete down to M_V_=-15.15, and it is homogeneous, thus facilitating the study of an unbiased sample of clusters with different characteristics. We constructed the photometric LF for 72 out of the original 76 WINGS clusters, excluding only those without a velocity dispersion estimate. For each cluster we obtained the LF for galaxies in a region of radius=0.5xr_200_, and fitted them with single and double Schechter's functions. We also derive the composite LF for the entire sample, and those pertaining to different morphological classes. Finally, we derive the spectroscopic cumulative LF for 2009 galaxies that are cluster members. The double Schechter fit parameters are correlated neither with the cluster velocity dispersion nor with the X-ray luminosity. Our median values of the Schechter's fit slope are, on average, in agreement with measurements of nearby clusters, but are less steep that those derived from large surveys, such as the SDSS. Early-type galaxies out number late-types at all magnitudes, but both early and late types contribute equally to the faint end of the LF. Finally, the spectroscopic LF is in excellent agreement with the one derived for A2199, A85 and Virgo, and with the photometric LF at the bright magnitudes (where both are available). There is a large spread in the LF of different clusters, however, this spread is not caused by correlation of the LF shape with cluster characteristics such as X-ray luminosity or velocity dispersions. The faint end is flatter than previously derived ({alpha}_f_=-1.7), which is at odds with that predicted from numerical simulations.2015A&A...581A..11Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/581/A11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/497/667 : 77 nearby clusters WINGS deep optical phot. (Varela+, 2009)J/MNRAS/281/799 : XBACs, the sample (Ebeling+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/581/A11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/581/A11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/581/A11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/581/A11https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/581/A11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/581/A11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/581/A11/table1 (Schechter function parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/581/A11/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/581/A11/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/581/A11/table1?GETtext/xml+votable180.050000true10.4075-9.34250.0055555555555555566/1006 2186 5030 5305 5370 6002 6223 8268 8442 8648 8788 9776 9943 9983 10311-10312 12118 12121 15085 16410 16434 16492 16713 16765 17237 18009 18016 18035 18324 18411 18607 18622 18939 19130 19204 19608 19993 20021 20072 20083 20361 20481 20706 24622 24637 24943 25042 26734 26770 27224 28005 32746 33235 33628 33649 34805 39077 40777 40809 43830 43835 43838 43939 43950 43977 45981 45984 46652 46911 48594https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/581/A11?format=asciiOpticaldefaultJ/A+A/581/A11/table1Schechter function parametersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id;meta.maincharAreaArea covered by our observationsMpc**2phys.area;obsfloatDGRDwarf-to-giant ratiometa.code.classfloatVMAGbFitted bright part absolute V magnitude (1)magphys.magAbsfloate_VMAGb? relative error on VMAGbmagstat.errorfloatnullablealphabFitted bright part alpha slope (1)spect.indexfloate_alphab? relative error on alphabstat.errorfloatnullableVMAGfFitted faint part absolute V magnitude (1)magphys.magAbsfloate_VMAGf? relative error on VMAGfmagstat.errorfloatnullablealphafFitted faint part alpha slope (1)spect.indexfloate_alphaf? relative error on alphafstat.errorfloatnullablechi2chi^2^ of the fit (per degree of freedom)stat.fit.chi2;stat.fit.param;meta.modelledfloatNgxNumber of galaxiesmeta.numberintsigmaGalaxy velocity dispersionkm/sphys.veloc.dispersionintlogLXX-ray luminosity in the range 0.1-4keV from Ebeling et al. (1996MNRAS.281..799E, Cat. J/MNRAS/281/799)log(1e-07W)phys.luminosity;em.X-rayfloatVMAGlimLimiting absolute magnitudemagphys.magAbsfloat_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