J/ApJ/858/60ivo://CDS.VizieR/J/ApJ/858/60doi:10.26093/cds/vizier.18580060CDSBezanson R.van der Wel A.Pacifici C.Noeske K.Barisic I.Bell E.F.,Brammer G.B.Calhau J.Chauke P.van Dokkum P.Franx M.Gallazzi A.,van Houdt J.Labbe I.Maseda M.V.Munos-Mateos J.C.Muzzin A.van deSande J.Sobral D.Straatman C.Wu P.-F.2019-07-26T14:15:00Z2019-05-03T11:16:00ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyredshiftedgalaxy-classification-systemsgalaxy-kinematicsWe present stellar rotation curves and velocity dispersion profiles for 104 quiescent galaxies at z=0.6-1 from the Large Early Galaxy Astrophysics Census (LEGA-C) spectroscopic survey. Rotation is typically probed across 10-20kpc, or to an average of 2.7Re. Combined with central stellar velocity dispersions ({sigma}0) this provides the first determination of the dynamical state of a sample selected by a lack of star formation activity at large lookback time. The most massive galaxies (M_*_>2x10^11^M_{sun}_) generally show no or little rotation measured at 5 kpc (|V_5_|/{sigma}_0_<0.2 in eight of ten cases), while ~64% of less massive galaxies show significant rotation. This is reminiscent of local fast- and slow- rotating ellipticals and implies that low- and high-redshift quiescent galaxies have qualitatively similar dynamical structures. We compare |V_5_|/{sigma}_0_ distributions at z~0.8 and the present day by re-binning and smoothing the kinematic maps of 91 low-redshift quiescent galaxies from the Calar Alto Legacy Integral Field Area (CALIFA) survey and find evidence for a decrease in rotational support since z~1. This result is especially strong when galaxies are compared at fixed velocity dispersion; if velocity dispersion does not evolve for individual galaxies then the rotational velocity at 5kpc was an average of 94+/-22% higher in z~0.8 quiescent galaxies than today. Considering that the number of quiescent galaxies grows with time and that new additions to the population descend from rotationally supported star-forming galaxies, our results imply that quiescent galaxies must lose angular momentum between z~1 and the present, presumably through dissipationless merging, and/or that the mechanism that transforms star-forming galaxies also reduces their rotational support.2018ApJ...858...60Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/858/60CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/141/371 : Low-mass stars evolutionary tracks (Girardi+, 2000)J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)J/ApJ/665/1067 : Velocities in Cl 0024+16 and MS 0451-03 (Moran+, 2007)J/MNRAS/382/109 : Massive galaxies in Extended Groth Strip (Trujillo+, 2007)J/ApJ/706/1364 : SINS survey of high-redshift gal. (Forster Schreiber+, 2009)J/ApJ/720/723 : Compact galaxies in the local universe (Taylor+, 2010)J/MNRAS/414/888 : ATLAS3D project. III. (Emsellem+, 2011)J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)J/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)J/ApJ/762/77 : PM2GC mass-limited sample surface photom. (Poggianti+, 2013)J/ApJ/768/74 : PHIBSS: CO obs. of star-forming galaxies (Tacconi+, 2013)J/ApJ/771/85 : Dynamical masses of z~2 quiescent gal. (van de Sande+, 2013)J/MNRAS/454/2050 : SAMI Pilot Survey (Fogarty+, 2015)J/MNRAS/448/3484 : ATLAS3D Project. XXX (McDermid+, 2015)J/A+A/594/A36 : CALIFA Survey DR3 list of galaxies (Sanchez+, 2016)J/ApJ/830/14 : SIGMA: Keck spectra of z~2 gal. in CANDELS (Simons+, 2016)J/A+A/597/A48 : Stellar kinematics in CALIFA survey (Falcon-Barroso+, 2017)J/A+A/598/A32 : 2D decomposition of CALIFA galaxies (Mendez-Abreu+, 2017)J/ApJ/835/104 : SAMI Galaxy Survey: rotators classif. (van de Sande+, 2017)J/ApJS/239/27 : LEGA-C DR2: galaxies in the COSMOS field (Straatman+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/858/60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/858/60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/858/60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/858/60https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/858/60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/858/60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/858/60/table1 (Properties of quiescent galaxies in the LEGA-C sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/858/60/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/858/60/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/858/60/table1?GETtext/xml+votable180.050000true150.370382.11977620.0055555555555555566/27256 27258 27259https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/858/60?format=asciiOpticaldefaultJ/ApJ/858/60/table1Properties of quiescent galaxies in the LEGA-C samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[80755/240174] Muzzin+ (2013, J/ApJS/206/8) UltraVISTA catalog (1)meta.id;meta.mainintzspec[0.5/1.1] Spectroscopic redshiftsrc.redshiftfloatlogM[10.2/11.6] log_10 Stellar (Mass/M_sun) (2)log(solMass)phys.massfloatRe[0.07/2.6] Effective radius along the major axisarcsecphys.angSizefloate_Re[0/0.04] Uncertainty in Rearcsecstat.errorfloatq[0.2/1] Projected axis ratio, b/aphys.size.axisRatiofloate_q[0/0.01] Uncertainty in qstat.errorfloatPA[-45/45] Major axis position angle, east of northdegpos.posAngfloate_PA[0.1/1.5] Uncertainty in PAdegstat.errorfloatn[0.5/6] Sersic Indexstat.fit.paramfloate_n[0.01/0.3] Uncertainty in nstat.errorfloatV5[-164/154] Average line-of-sight rot. velocity at 5kpckm/sphys.veloc.rotatfloate_V5[1/23]? Uncertainty in V5km/sstat.errorfloatnullableVRe[-186.1/219] Average line-of sight rot. velocity at Rekm/sphys.veloc.rotatfloate_VRe[0.4/19]? Uncertainty in VRekm/sstat.errorfloatnullableVmax[-244/238] Average line-of sight rot. velocity at the maximum extent of the rotation curvekm/sphys.veloc;stat.meanfloate_Vmax[0.8/35.1]? Uncertainty in Vmaxkm/sstat.errorfloatnullablesigma0[96/384] Velocity dispersion in the central pixelkm/sphys.veloc.dispersionfloate_sigma0[2.7/24.1] Uncertainty in sigma0km/sstat.errorfloatDR2Display data from the LEGA-C DR2 catalog (Straatman+, 2018, J/ApJS/239/27)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Muzzin+ 2013, J/ApJS/206/8 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Muzzin+ 2013, J/ApJS/206/8 (declination part)degpos.eq.dec;meta.main