J/MNRAS/376/125ivo://CDS.VizieR/J/MNRAS/376/125doi:10.26093/cds/vizier.73760125CDSSanchez S.F.Cardiel N.Verheijen M.A.W.Pedraz S.Covone G.2024-07-04T20:18:01Z2007-12-03T17:52:42ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometrygalaxy-classification-systemsWe present a study of the stellar populations and morphologies of galaxies in the core of the galaxy cluster Abell 2218. Integral field spectroscopy (IFS) observations were performed using PMAS in the PPAK mode covering a field of view of ~74x64arcsec^2^ centred on the core of the cluster, in order to obtain spectroscopy of an unbiased flux-limited sample of cluster galaxies. 43 objects were detected in the IFS data, 31 of them with enough signal-to-noise ratio to derive the redshift, all of them brighter than I<21.5mag. 28 are at the redshift of the cluster (17 with previously unknown redshift). Individual spectra of the cluster members were extracted and compared with single stellar population models to derive the luminosity-weighted ages and metallicities. In addition, deep Hubble Space Telescope (HST)/ACS F475W-, F555W-, F625W- and F850LP-band images centred on the cluster core were obtained from the HST archive (zlim~28mag). A detailed morphological analysis of all the galaxies within the field of view of these images down to zlim<22.5mag was performed classifying them as late-type, intermediate and early-type, on the basis of their Sersic indices. The literature was scanned to look for spectroscopically confirmed cluster members located within the field of view of the ACS image. The final sample of 59 galaxies comprises our reported sample of 28 galaxies in the core, and 31 additional galaxies in the outer regions. In addition, multiband broad-band photometry was extracted from the literature for all objects.2007MNRAS.376..125Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/376/125CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/130/1002 : Stroemgren photometry in Abell 2125 and 2218 (Rakos+, 2005)J/A+A/407/791 : ACO 370, 2218 and 2390 fluxes at 7 and 15um (Metcalfe+, 2003)J/MNRAS/323/839 : HST photometry of A2218 early-type galaxies (Smail+, 2001)J/AJ/98/1148 : VLA survey of 0016+16, Abell 665 and 2218 (Moffet+, 1989)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/376/125https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/376/125http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/376/125https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/376/125https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/376/125http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/376/125GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/376/125/table2 (Summary of the photometric analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/376/125/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/376/125/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/376/125/table2?GETtext/xml+votable180.050000true248.953729766.21179060.0055555555555555566/11626https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/376/125?format=asciiOpticaldefaultJ/MNRAS/376/125/table1Summary of the HST/ACS imagesNFrameNumber of framesmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiltFiltermeta.id;instr.filtercharLambdaPivot lambda0.1nminstr.filter;em.wl.centraldoubleWidthWavelength width0.1nminstr.bandwidthfloatExpTimeExposure timestime.duration;obs.exposureintmaglimLimiting magnitude (15sigma)magphot.magfloatJ/MNRAS/376/125/table2Summary of the photometric analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SCV2007]Sequential numbermeta.recordintprimaryRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degreesdegpos.eq.dec;meta.mainBmag? B (F475W) magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? rms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag? V (F555W) magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatnullableRmag? R (F625W) magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? rms uncertainty on Rmagmagstat.error;phot.mag;em.opt.RfloatnullableImag? I (F775W) magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? rms uncertainty on Imagmagstat.error;phot.mag;em.opt.Ifloatnullablezmagz (F850LP) magnitudemagphot.mag;em.opt.Ifloate_zmagrms uncertainty on zmagmagstat.error;phot.mag;em.opt.IfloatJ/MNRAS/376/125/table3Summary of the morphological analysisAAsymmetry indexmeta.code;spect.indexfloatnSerSersic numberstat.fit.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SCV2007]Sequential numbermeta.recordintchi2/nuchi^2^/nu of fitting procedurestat.fit.paramfloatzmagz (F850LP) magnitudemagphot.mag;em.opt.Ifloate_zmagrms uncertainty on zmagmagstat.error;phot.mag;em.opt.IfloatReEffective radiusarcsecphys.angSizefloate_Rerms uncertainty on Rearcsecstat.errorfloata/ba/b axis ratiophys.angSize;arith.ratiofloate_a/brms uncertainty on a/bstat.errorfloatPA[-90/90] Position angledegpos.posAnginte_PArms uncertainty on PAdegstat.errorinte_nSerrms uncertainty on nSerstat.errorfloatJ/MNRAS/376/125/table4Summary of the parameters derived from the spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIFUIFU identification numbermeta.noteint[SCV2007]SExtractor Sequential numbermeta.recordintz? Redshiftsrc.redshiftfloatnullableu_z[?] Uncertainty flag on zmeta.code.error;src.redshiftcharHb? H{beta} index0.1nmspect.index;em.line.Hbetafloatnullableu_HbUncertainty flag on Hbmeta.code.errorchare_Hb? rms uncertainty on Hb0.1nmstat.errorfloatnullableu_e_HbUncertainty flag on e_Hbmeta.code.errorcharMgb? Mgb index0.1nmmeta.code;spect.indexfloatnullableu_MgbUncertainty flag on Mgbmeta.code.errorchare_Mgb? rms uncertainty on Mgb0.1nmstat.errorfloatnullableu_e_MgbUncertainty flag on e_Mgbmeta.code.errorcharAgeAgeGyrtime.agefloate_Agerms uncertainty on AgeGyrstat.error;time.agefloatZMetallicityphys.abund.Zfloate_Zrms uncertainty on Zstat.error;src.redshiftfloatMassMass1e+10solMassphys.massfloate_Massrms uncertainty on Mass1e+10solMassstat.error;phys.massfloat