J/ApJ/834/101ivo://CDS.VizieR/J/ApJ/834/101doi:10.26093/cds/vizier.18340101CDSTran K.-V.H.Alcorn L.Y.Kacprzak G.G.Nanayakkara T.Straatman C.,Yuan T.Cowley M.Dave R.Glazebrook K.Kewley L.J.Labbe I.,Martizzi D.Papovich C.Quadri R.Spitler L.R.Tomczak A.2020-01-29T14:41:34Z2017-11-28T10:34:22ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesinfrared-astronomyspectroscopyredshiftedvisible-astronomyh-alpha-photometryWe compare galaxy scaling relations as a function of environment at z~2 with our ZFIRE survey where we have measured H{alpha} fluxes for 90 star-forming galaxies selected from a mass-limited (log(M_*_/M_{sun}_)>9) sample based on ZFOURGE. The cluster galaxies (37) are part of a confirmed system at z=2.095 and the field galaxies (53) are at 1.9<z<2.4; all are in the COSMOS legacy field. There is no statistical difference between H{alpha}-emitting cluster and field populations when comparing their star formation rate (SFR), stellar mass (M_*_), galaxy size (r_eff_), SFR surface density ({Sigma}(H{alpha}_star_)), and stellar age distributions. The only difference is that at fixed stellar mass, the H{alpha}-emitting cluster galaxies are log(r_eff_)~0.1 larger than in the field. Approximately 19% of the H{alpha} emitters in the cluster and 26% in the field are IR-luminous (L_IR_>2x10^11^L_{sun}_). Because the luminous IR galaxies in our combined sample are ~5 times more massive than the low-IR galaxies, their radii are ~70% larger. To track stellar growth, we separate galaxies into those that lie above, on, or below the H{alpha} star-forming main sequence (SFMS) using {Delta}SFR(M*)=+/-0.2dex. Galaxies above the SFMS (starbursts) tend to have higher H{alpha} SFR surface densities and younger light-weighted stellar ages than galaxies below the SFMS. Our results indicate that starbursts (+SFMS) in the cluster and field at z~2 are growing their stellar cores. Lastly, we compare to the (SFR-M*) relation from Rhapsody-G cluster simulations and find that the predicted slope is nominally consistent with the observations. However, the predicted cluster SFRs tend to be too low by a factor of ~2, which seems to be a common problem for simulations across environment.2017ApJ...834..101Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/834/101CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/265 : COSMOS Morphological Catalog (V1.1) (Tasca+ 2009)J/ApJ/830/51 : FourStar galaxy evolution survey (ZFOURGE) (Straatman+, 2016)J/ApJ/828/21 : ZFIRE v1.0 data release (Nanayakkara+, 2016)J/ApJ/817/118 : SFR-M_*_ relation from ZFOURGE (Tomczak+, 2016)J/ApJS/219/15 : Morphologies of z=0-10 galaxies with HST data (Shibuya+, 2015)J/ApJS/218/33 : Spitzer-CANDELS catalog within 5 deep fields (Ashby+, 2015)J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)J/ApJS/212/18 : An atlas of UV-to-MIR galaxy SEDs (Brown+, 2014)J/ApJS/203/24 : Structural param. of galaxies in CANDELS (van der Wel+, 2012)J/ApJ/682/985 : FIREWORKS photometry of GOODS CDF-S (Wuyts+, 2008)J/ApJ/655/51 : HDFS IRAC observations of 2<z<3.5 galaxies (Wuyts+, 2007)http://zfire.swinburne.edu.au/ : ZFIRE home pagehttp://zfourge.tamu.edu/ : ZFOURGE home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/834/101https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/834/101http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/834/101https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/834/101https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/834/101http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/834/101GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/834/101/table1 (Galaxy properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/834/101/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/834/101/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/834/101/table1?GETtext/xml+votable180.050000true150.190572.188480.0055555555555555566/27258https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/834/101?format=asciiOpticalInfrareddefaultJ/ApJ/834/101/table1Galaxy propertiesn[0.3/8]? Sersic indexstat.fit.paramfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZFIRE[237/9922] ZFIRE source identifier (1)meta.id;meta.mainintZFOURGE[912/14346] ZFOURGE source identifier (1)meta.idintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainzsp[1.9/2.4] Spectroscopic redshiftsrc.redshiftfloatFHa[0.4/11.2] Observed H{alpha} flux, 10-17erg/s/cm21e-20W.m**-2phot.flux;em.line.Halphafloate_FHa[0.05/0.3] Uncertainty in FHa1e-20W.m**-2stat.errorfloatLIR[8.7/12.3]? Log of IR luminosity (2)log(solLum)phys.luminosity;em.IRfloatnullableMstar[8.9/11] Log of stellar masslog(solMass)phys.massfloatAv[0/1.6] Extinctionmagphys.absorptionfloatt[7.9/9.4] Log of stellar age (3)log(Gyr)time.agefloatSFR[1/84] H{alpha} based star formation rate (4)solMass/yrphys.SFR;spect.linefloatReff[0.1/0.9]? Effective radiusarcsecphys.angSizefloatnullablePflag[-99/2]? Quality of profile fit (0=good fit) (5)meta.codeintnullableCANDELSDisplay data from CANDELS catalogs (van der Wel+, 2012, J/ApJS/203/24; Skelton+, 2014, J/ApJS/214/24 and Ashby+, 2015, J/ApJS/218/33) within 0.3"meta.ref.urlintnullableCOSMOSDisplay data from Tasca+ 2009, VII/265 within 0.3"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar