J/A+A/597/A122ivo://CDS.VizieR/J/A+A/597/A122doi:10.26093/cds/vizier.35970122CDSSaracco P.Gargiulo A.Ciocca F.Marchesini D.2022-02-04T12:04:27Z2017-06-12T07:41:18ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiescatalogsgalaxy-classification-systemsThe aim of this work is twofold: first, to assess whether the population of elliptical galaxies in cluster at z~1.3 differs from the population in the field and whether their intrinsic structure depends on the environment where they belong; second, to constrain their properties 9Gyr back in time through the study of their scaling relations. We compared a sample of 56 cluster elliptical galaxies selected from three clusters at 1.2<z<1.4 with elliptical galaxies selected at comparable redshift in the GOODS-South field (~30), in the COSMOS area (~180), and in the CANDELS fields (~220). To single out the environmental effects, we selected cluster and field elliptical galaxies according to their morphology. We compared physical and structural parameters of galaxies in the two environments and we derived the relationships between effective radius, surface brightness, stellar mass, and stellar mass density {Sigma}_R_e__ within the effective radius and central mass density {Sigma}_1kpc_, within 1kpc radius. We find that the structure and the properties of cluster elliptical galaxies do not differ from those in the field: they are characterized by the same structural parameters at fixed mass and they follow the same scaling relations. On the other hand, the population of field elliptical galaxies at z~1.3 shows a significant lack of massive (M_*_>2x10^11^M_{sun}_) and large (R_e_>4-5kpc) elliptical galaxies with respect to the cluster. Nonetheless, at M_*_<2x10^11^M_{sun}_, the two populations are similar. The size-mass relation of cluster and field ellipticals at z~1.3 clearly defines two different regimes, above and below a transition mass m_t_~=2-3x10^10^M_{sun}_ at lower masses the relation is nearly flat (R_e_{prop}M*^-0.1+/-0.2^), the mean radius is nearly constant at ~1kpc and, consequently, {Sigma}_Re_~={Sigma}_1kpc_ while, at larger masses, the relation is R_e_{prop}M*^0.64+/-0.09^. The transition mass marks the mass at which galaxies reach the maximum stellar mass density. Also the {Sigma}_1kpc_-mass relation follows two different regimes, above and below the transition mass ({Sigma}_1kpc_{prop}M*_1.07<mt_^0.64>mt^) defining a transition mass density {Sigma}_1kpc_~=2-3x10^3^M_{sun}_/pc^2^. The effective stellar mass density {Sigma}_Re_ does not correlate with mass; dense/compact galaxies can be assembled over a wide mass regime, independently of the environment. The central stellar mass density, {Sigma}_1kpc_, besides being correlated with the mass, is correlated to the age of the stellar population: the higher the central stellar mass density, the higher the mass, the older the age of the stellar population. While we found some evidence of environmental effects on the elliptical galaxies as a population, we did not find differences between the intrinsic properties of cluster and field elliptical galaxies at comparable redshift. The structure and the shaping of elliptical galaxies at z~1.3 do not depend on the environment. However, a dense environment seems to be more efficient in assembling high-mass large ellipticals, much rarer in the field at this redshift. The correlation found between the central stellar mass density and the age of the galaxies beside the mass shows the close connection of the central regions to the main phases of mass growth.2017A&A...597A.122Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/597/A122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/597/A122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/597/A122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/597/A122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/597/A122https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/597/A122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/597/A122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/597/A122/tableb1 (Morphological parameters of cluster elliptical galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A122/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A122/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A122/tableb1?GETtext/xml+votable180.050000true338.8625125-25.970586110.005555555555555556Cone search capability for table J/A+A/597/A122/tableb2 (Morphological parameters of elliptical galaxies in the field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A122/tableb2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A122/tableb2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A122/tableb2?GETtext/xml+votable180.050000true53.1305833327.859022220.0055555555555555566/848 7178 17689 47053https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/597/A122?format=asciiOpticaldefaultJ/A+A/597/A122/tableb1Morphological parameters of cluster elliptical galaxiesSimbadNameSimbad column added by the CDSmeta.idcharnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster or field name (1)meta.id.parentcharIDGalaxy identification numbermeta.id;meta.mainintDEJ2000Declination (J2000)pos.eq.dec;meta.mainn850Sersic indexstat.fit.paramfloate_n850rms uncertainty on n850stat.errorfloatb/aAxial ratiophys.angSize;arith.ratiofloatF850fitF850LP apparent magnitudemagphot.mag;em.opt.Ifloate_F850fitrms uncertainty on F850fitmagstat.errorfloatReF850Effective radius as derived from the fitting to the surface brightness profile in the F850LP imagekpcmeta.ref;pos.framefloate_ReF850rms uncertainty on ReF850kpcstat.errorfloatmuF850Effective surface brightnessmag.arcsec**-2phot.mag.sb;em.opt.Bfloate_muF850rms uncertainty on ReF850mag.arcsec**-2stat.errorfloatEvBLuminosity evolution in the B band (2)magstat.fit.paramfloatAgeAge of the populationGyrtime.agefloatlogM*Stellar mass fittinglog(solMass)phys.massfloatlogM1kpcStellar mass within 1kpc radiuslog(solMass)phys.massfloatBMAGAbsolute B magnitudemagphys.magAbsfloatJ/A+A/597/A122/tableb2Morphological parameters of elliptical galaxies in the fieldSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster or field name (1)meta.id.parentcharIDGalaxy identification numbermeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainn850Sersic indexstat.fit.paramfloate_n850rms uncertainty on n850stat.errorfloatb/aAxial ratiophys.angSize;arith.ratiofloatF850fitF850LP apparent magnitudemagphot.mag;em.opt.Ifloate_F850fitrms uncertainty on F850fitmagstat.errorfloatReF850Effective radius as derived from the fitting to the surface brightness profile in the F850LP imagekpcmeta.ref;pos.framefloate_ReF850rms uncertainty on ReF850kpcstat.errorfloatmuF850Effective surface brightnessmag.arcsec**-2phot.mag.sb;em.opt.Bfloate_muF850rms uncertainty on ReF850mag.arcsec**-2stat.errorfloatEvBLuminosity evolution in the B band (2)magstat.fit.paramfloatAgeAge of the populationGyrtime.agefloatlogM*Stellar mass fittinglog(solMass)phys.massfloatlogM1kpcStellar mass within 1kpc radiuslog(solMass)phys.massfloatBMAGAbsolute B magnitudemagphys.magAbsfloat