J/ApJ/837/16ivo://CDS.VizieR/J/ApJ/837/16doi:10.26093/cds/vizier.18370016CDSDarvish B.Mobasher B.Martin D.C.Sobral D.Scoville N.Stroe A.,Hemmati S.Kartaltepe J.2019-02-27T12:12:47Z2019-02-26T07:47:00ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsredshiftedWe use a mass complete (log(M/M_{sun}_)>=9.6) sample of galaxies with accurate photometric redshifts in the COSMOS field to construct the density field and the cosmic web to z=1.2. The comic web extraction relies on the density field Hessian matrix and breaks the density field into clusters, filaments, and the field. We provide the density field and cosmic web measures to the community. We show that at z<~0.8, the median star formation rate (SFR) in the cosmic web gradually declines from the field to clusters and this decline is especially sharp for satellites (~1dex versus ~0.5dex for centrals). However, at z>~0.8, the trend flattens out for the overall galaxy population and satellites. For star-forming (SF) galaxies only, the median SFR is constant at z>~0.5 but declines by ~0.3-0.4dex from the field to clusters for satellites and centrals at z<~0.5. We argue that for satellites, the main role of the cosmic web environment is to control their SF fraction, whereas for centrals, it is mainly to control their overall SFR at z<~0.5 and to set their fraction at z>~0.5. We suggest that most satellites experience a rapid quenching mechanism as they fall from the field into clusters through filaments, whereas centrals mostly undergo a slow environmental quenching at z<~0.5 and a fast mechanism at higher redshifts. Our preliminary results highlight the importance of the large-scale cosmic web on galaxy evolution.2017ApJ...837...16Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/837/16CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/86 : Groups of Galaxies. I. Nearby Groups (Huchra+ 1982)II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)J/ApJ/690/1236 : COSMOS photometric redshift catalog (Ilbert+, 2009)J/ApJS/184/218 : The zCOSMOS 10k-bright spectroscopic sample (Lilly+, 2009)J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)J/MNRAS/422/25 : SDSS DR7 groups, clusters and filaments (Smith+, 2012)J/A+A/556/A55 : Multi-color photom. of star-forming galaxies (Ilbert+, 2013)J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)J/MNRAS/440/843 : SIM2D parameters of SDSS-DR7 galaxies (Omand+, 2014)J/MNRAS/438/3465 : Cosmic web filaments in the SDSS (Tempel+, 2014)J/ApJ/805/121 : Overdensities of 0<z<3 COSMOS galaxies (Darvish+, 2015)J/MNRAS/450/630 : MC2: SFR in CIZA J2242.8+5301 (Sobral+, 2015)J/MNRAS/458/3443 : Cl0939+4713 H{alpha} z~0.4 star-forming gal. (Sobral+ 2016)J/ApJ/833/178 : GLASS. VII. H{alpha} maps (Vulcani+, 2016)J/ApJS/224/24 : The COSMOS2015 catalog (Laigle+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/837/16https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/837/16http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/837/16https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/837/16https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/837/16http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/837/16GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/837/16/table1 (galaxies with estimated density values, cosmic web environments, and galaxy type)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/837/16/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/837/16/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/837/16/table1?GETtext/xml+votable180.050000true150.041038061.679103890.0055555555555555565/6814 6/27245 27247 27344https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/837/16?format=asciidefaultJ/ApJ/837/16/table1galaxies with estimated density values, cosmic web environments, and galaxy typerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCOSMOS2015Original sequence number in Laigle+ 2016, J/ApJS/224/24meta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedzph[0.1/1.2] Photometric redshiftsrc.redshiftfloatDen[0.01/93] DensityMpc**-2phys.densityfloatOden[0/37.3] Density divided by the median density at each redshiftphys.densityfloatSCl[0/0.9] Cluster signal, resemblance of the local geometry to a clusterstat.fit.paramdoubleSFil[0/0.9] Filament signal, resemblance of the local geometry to a filamentstat.fit.paramdoubleCWECosmic Web Environment (1)src.classcharGroup[1/7231]? Group ID (2)meta.idintnullableNgroup[2/377]? Number of members in Groupmeta.numberintnullableTypeGalaxy type ("satellite" (21316 occurrences), "isolated" (16874 occurrences) or "central")src.classcharFlagFlag (1=Objects that are close to the edge or masked area; not used for the analysis)meta.code.errorint