J/MNRAS/382/109ivo://CDS.VizieR/J/MNRAS/382/109doi:10.26093/cds/vizier.73820109CDSTrujillo I.Conselice C.J.Bundy K.Cooper M.C.Eisenhardt P.,Ellis R.S.2024-07-05T20:15:44Z2008-07-09T12:26:03ZCDS support team

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

cds-question@unistra.frgalaxiesphotometrygalaxy-classification-systemsredshiftedUsing the combined capabilities of the large near-infrared Palomar/DEEP-2 survey, and the superb resolution of the Advanced Camera for Surveys HST camera, we explore the size evolution of 831 very massive galaxies (M*>=10^11^h^-2^_70_M_{sun}_) since z~2. We split our sample according to their light concentration using the Sersic index n. At a given stellar mass, both low (n<2.5) and high (n>2.5) concentrated objects were much smaller in the past than their local massive counterparts. This evolution is particularly strong for the highly concentrated (spheroid like) objects. At z~1.5, massive spheroid-like objects were a factor of 4(+/-0.4) smaller (i.e. almost two orders of magnitudes denser) than those we see today. These small sized, high-mass galaxies do not exist in the nearby Universe, suggesting that this population merged with other galaxies over several billion years to form the largest galaxies we see today.2007MNRAS.382..109Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/382/109CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/382/109https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/382/109http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/382/109https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/382/109https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/382/109http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/382/109GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/382/109/tablea1 (Properties of the Palomar/DEEP2 sample galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/382/109/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/382/109/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/382/109/tablea1?GETtext/xml+votable180.050000true214.25886552.39994390.0055555555555555566/11424-11425 11428https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/382/109?format=asciiOpticaldefaultJ/MNRAS/382/109/tablea1Properties of the Palomar/DEEP2 sample galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TCB2007]Galaxy identification numbermeta.id;meta.mainintKsKs magnitude (in Vega system)magphot.mag;em.IR.KfloataeEffectif radius along semi-major axisarcsecphys.angSizefloatnSersic index (f(r){prop.to}r^1/n^)stat.fit.paramfloatepsEllipticity of the sourcesrc.ellipticityfloatMstarStellar mass of the galaxy (in 10^10^(h_70_)^-2^M_{sun}_1e+10solMasssrc.class.starGalaxyfloatzMeasured redshift (see 'n_z' column)src.redshiftfloatn_z[0/1] spectroscopic (0) or photometric (1) redshiftmeta.noteintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main