J/ApJ/805/121ivo://CDS.VizieR/J/ApJ/805/121doi:10.26093/cds/vizier.18050121CDSDarvish B.Mobasher B.Sobral D.Scoville N.Aragon-Calvo M.2017-01-23T22:00:00Z2015-10-19T14:26:51ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesphotometryredshiftedIt is well-known that a galaxy's environment has a fundamental influence in shaping its properties. We study the environmental effects on galaxy evolution, with an emphasis on the environment defined as the local number density of galaxies. The density field is estimated with different estimators (weighted adaptive kernel smoothing, 10th and 5th nearest neighbors, Voronoi and Delaunay tessellation) for a K_s_<24 sample of ~190000 galaxies in the COSMOS field at 0.1<z<3.1. The performance of each estimator is evaluated with extensive simulations. We show that overall there is a good agreement between the estimated density fields using different methods over ~2dex in overdensity values. However, our simulations show that adaptive kernel and Voronoi tessellation outperform other methods. Using the Voronoi tessellation method, we assign surface densities to a mass complete sample of quiescent and star-forming galaxies out to z~3. We show that at a fixed stellar mass, the median color of quiescent galaxies does not depend on their host environment out to z~3. We find that the number and stellar mass density of massive (>10^11^M_{sun}_) star-forming galaxies have not significantly changed since z~3, regardless of their environment. However, for massive quiescent systems at lower redshifts (z<~1.3), we find a significant evolution in the number and stellar mass densities in denser environments compared to lower density regions. Our results suggest that the relation between stellar mass and local density is more fundamental than the color-density relation and that environment plays a significant role in quenching star-formation activity in galaxies at z<~1.2015ApJ...805..121Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/805/121CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)VII/265 : COSMOS Morphological Catalog (V1.1) (Tasca+ 2009)VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)J/ApJS/209/10 : UGSs. V. kernel approach (Massaro+, 2013)J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)J/A+A/556/A55 : Multi-color phot. of star-forming galaxies (Ilbert+, 2013)J/ApJ/763/127 : GCls discovered in the SPT survey (Reichardt+, 2013)J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)J/ApJ/753/121 : zCOSMOS 20k sample group catalog to z<~1.2 (Knobel+, 2012)J/MNRAS/423/1024 : XCS-DR1 Cluster Catalogue (Mehrtens+, 2012)J/A+A/536/A8 : Planck early results. VIII. ESZ sample. (Planck+, 2011)J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA) DR1 (Driver+, 2011)J/ApJS/191/254 : GMBCG galaxy cluster catalog from SDSS DR7 (Hao+, 2010)J/ApJ/697/1842 : zCOSMOS 10K sample group catalog to z=1 (Knobel+, 2009)J/ApJ/669/714 : Subaru weak-lensing survey. I. (Miyazaki+, 2007)J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)J/A+A/470/821 : BLOX Cluster catalog (Dietrich+, 2007)J/ApJ/660/239 : MaxBCG cat. of galaxy clusters from SDSS (Koester+, 2007)J/AJ/130/968 : SDSS-C4 cluster catalog (Miller+, 2005)J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)J/AJ/123/1807 : SDSS galaxy clusters redshifts (Goto+, 2002)J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)J/MNRAS/301/881 : The ROSAT brightest cluster sample - I. (Ebeling+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/805/121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/805/121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/805/121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/805/121https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/805/121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/805/121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/805/121/table1 (Overdensity values evaluated using the adaptive kernel estimator for sample galaxies selected in Section 2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/805/121/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/805/121/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/805/121/table1?GETtext/xml+votable180.050000true150.020251.679510.0055555555555555565/6814 6/27245 27247 273447.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/805/121?format=asciiOpticalInfrareddefaultJ/ApJ/805/121/table1Overdensity values evaluated using the adaptive kernel estimator for sample galaxies selected in Section 2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning sequence numbermeta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedzph[0.05/3.2] Ilbert et al. 2013, J/A+A/556/A55, photometric redshiftsrc.redshiftfloatKsmag[15/24] McCracken et al. 2012, J/A+A/544/A156, KS_AUTO magnitudemagphot.mag;em.IR.Kfloatlogdel[-1.9/1.5]? log overdensity kernel (1)phys.density;arith.ratiofloatnullableCCatSources within 0.5" from McCracken+, 2012, J/A+A/544/A156 and Ilbert=, 2013, J/A+A/556/A55meta.ref.urlintnullable