J/MNRAS/454/1332ivo://CDS.VizieR/J/MNRAS/454/1332doi:10.26093/cds/vizier.74541332CDSShetty S.Cappellari M.2024-08-15T20:15:42Z2016-09-15T14:51:18ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsWe study the star formation history for a sample of 154 galaxies with stellar mass 10^10^<~M*<~10^12^M_{sun}_ in the redshift range 0.7<z<0.9. We do this using stellar population models combined with full-spectrum fitting of good quality spectra and high-resolution photometry. For a subset of 68 galaxies (M*>~10^11^M_{sun}_) we additionally construct dynamical models. These use an axisymmetric solution to the Jeans equations, which allows for velocity anisotropy, and adopts results from abundance matching techniques to account for the dark matter content. We find that (i) the trends in star formation history observed in the local Universe are already in place by z~1: the most massive galaxies are already passive, while lower mass ones have a more extended star formation histories, and the lowest mass galaxies are actively forming stars; (ii) we place an upper limit of a factor 1.5 to the size growth of the massive galaxy population; (iii) we present strong evidence for low dark matter fractions within 1Re (median of 9 per cent and 90th percentile of 21 per cent) for galaxies with M*>~10^11^M_{sun}_ at these redshifts; and (iv) we confirm that these galaxies have, on average, a Salpeter normalization of the stellar initial mass function.2015MNRAS.454.1332Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/454/1332CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/301 : The DEEP2-DR1 Photometric Catalog (Coil+ 2004)III/268 : DEEP2 Redshift Survey, Data Release 4 (Matthews+ 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/454/1332https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/454/1332http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/454/1332https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/454/1332https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/454/1332http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/454/1332GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/454/1332/table1 (Results of Stellar Population Modelling)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/454/1332/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/454/1332/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/454/1332/table1?GETtext/xml+votable180.050000true214.3396761152.354773890.005555555555555556Cone search capability for table J/MNRAS/454/1332/table3 (Results of our Dynamical Modelling)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/454/1332/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/454/1332/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/454/1332/table3?GETtext/xml+votable180.050000true214.3820852.397651940.0055555555555555566/11424-11425https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/454/1332?format=asciidefaultJ/MNRAS/454/1332/table1Results of Stellar Population ModellingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDEEP2DEEP2 galaxy identifiermeta.id;meta.mainzDEEP2 estimated redshiftsrc.redshiftfloatReEffective radius of the galaxy derived analytically from the circularized MGE model (1)kpcphys.size.radiusfloatReMajMajor axis of the isophote containing half of the observed light of the galaxy (2)kpcmeta.notefloatBMAGAbsolute B-(Vega) band magnitude of the galaxies derived analytically through MGE models of the F814W photometrymagphys.magAbsfloatM*/LSalBMass-weighted M*/LB derived through the regularized full-spectrum fit using the entire template grid (3)solMass/solLumphys.composition.massLightRatiofloatAgeMMass-weighted age of the galaxies calculated from the regularized full-spectra fit using the entire template gridGyrtime.agefloatAgeLLuminosity-weighted age of the galaxies calculated from a regularized full-spectra fit using the entire template gridGyrtime.age;meta.modelledfloatlogM*Sallog of the stellar mass (4)log(solMass)phys.massfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions form DEEP2 (Coil et al., 2004, Cat. II/301) catalog (right ascension part)degpos.eq.ra;meta.main_DEPositions form DEEP2 (Coil et al., 2004, Cat. II/301) catalog (declination part)degpos.eq.dec;meta.mainJ/MNRAS/454/1332/table3Results of our Dynamical ModellingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDEEP2DEEP2 galaxy identifiermeta.id;meta.mainsigmaVelocity dispersion as measured by full-spectrum fitting of the galaxy spectrakm/sphys.veloc.dispersionfloate_sigmaError on the derived velocity disperion of the galaxy through a bootstrapping techniquekm/sstat.errorfloatM*/LJAMB-band stellar (M_*_/L) derived through dynamical modelling (1)solMass/solLumphys.composition.massLightRatiofloatlogM*JAMlog of the stellar mass of the galaxy derived using the absolute luminosity and the M/L of M*/LJAMlog(solMass)phys.massfloatfDMFraction of dark matter within 1Re of the galaxy (2)phys.mass;arith.ratiofloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions form DEEP2 (Coil et al., 2004, Cat. II/301) catalog (right ascension part)degpos.eq.ra;meta.main_DEPositions form DEEP2 (Coil et al., 2004, Cat. II/301) catalog (declination part)degpos.eq.dec;meta.main