J/ApJ/907/65ivo://CDS.VizieR/J/ApJ/907/65doi:10.26093/cds/vizier.19070065CDSGolden-Marx E.Blanton E.L.Paterno-Mahler R.Brodwin M.Ashby M.L.N.,Moravec E.Shen L.Lemaux B.C.Lubin L.M.Gal R.R.Tomczak A.R.2023-05-30T07:43:34Z2022-06-27T07:15:25ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-sourcesinfrared-astronomyredshiftedThe shape of bent, double-lobed radio sources requires a dense gaseous medium. Bent sources can therefore be used to identify galaxy clusters and characterize their evolutionary history. By combining radio observations from the Very Large Array Faint Images of the Radio Sky at Twenty centimeters (VLA FIRST) survey with optical and infrared imaging of 36 red sequence selected cluster candidates from the high-z Clusters Occupied by Bent Radio AGN (COBRA) survey (0.35<z<2.2), we find that radio sources with narrower opening angles reside in richer clusters, indicating that the cluster environment impacts radio morphology. Within these clusters, we determine 55.5% of our radio host galaxies are brightest cluster galaxies (BCGs) and that the remainder are associated with other luminous galaxies. The projected separations between the radio sources and cluster centers and the sizes of the opening angles of bent sources follow similar distributions for BCG and non-BCG host populations, suggesting that COBRA host galaxies are either BCGs or galaxies that may evolve into BCGs. By measuring the orientation of the radio sources relative to the cluster centers, we find between 30% and 42% of COBRA bent sources are outgoing and have passed through the cluster center, while between 8% and 58% of COBRA bent sources are infalling. Although these sources typically do not follow directly radial paths, the large population of outgoing sources contrasts what is observed in low-z samples of bent sources and may indicate that the intracluster medium is less dense in these high-z clusters.2021ApJ...907...65Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/907/65CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/169/225 : Photometry of galaxies in the Coma cluster (Eisenhardt+, 2007)J/AJ/141/88 : Galaxy cluster environments of radio sources (Wing+, 2011)J/ApJS/199/34 : Clusters of galaxies in SDSS-III (Wen+, 2012)J/MNRAS/430/3086 : CoNFIG AGN sample (Gendre+, 2013)J/ApJ/769/79 : Spitzer observations radio-loud AGNs (CARLA) (Wylezalek+, 2013)J/A+A/572/A41 : VUDS Dicovery of a high-redshift protocluster (Lemaux+, 2014)J/ApJ/785/104 : redMaPPer. I. Algorithm applied to SDSS DR8 (Rykoff+, 2014)J/ApJS/213/25 : WISE Massive & Distant Clusters (MaDCoWS) II. (Stanford+, 2014)J/ApJ/786/17 : Luminosity functions for 1.3<z<3.2 galaxies (Wylezalek+, 2014)J/ApJ/807/178 : Newly rich galaxy clusters identified in SDSS-DR12 (Wen+, 2015)J/ApJ/816/98 : Galaxies Xray clusters with DES. I. Stellar mass (Zhang+, 2016)J/ApJ/844/78 : High-redshift COBRA survey; IRAC obs. (Paterno-Mahler+, 2017)J/ApJ/859/38 : HST grism obs. CARLA galaxy cluster candidates (Noirot+, 2018)J/AJ/157/126 : RGZ distortion radio galaxies by galaxy clusters (Garon+, 2019)J/ApJS/240/33 : MaDCoWS. I. Catalog of z~1 galaxy clusters (Gonzalez+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/907/65https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/907/65http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/907/65https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/907/65https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/907/65http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/907/65GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/907/65/table1 (COBRA red sequence clusters and radio source properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/907/65/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/907/65/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/907/65/table1?GETtext/xml+votable180.050000true14.65429171.22438890.0055555555555555566/4742 5169 5219 5227 5697 6218 6338 6976 7436 8438 8923 9185 9330 9513 9623 9777 9995 10041 10087 10380 10510 10629 11001 11095 11378 17807 17828 18006 18029 19029 26398 26584 27928 28155 28436 28570 31393 324935.517906024225661e-20 5.517906024225661e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/907/65?format=asciiInfraredRadiodefaultJ/ApJ/907/65/table1COBRA red sequence clusters and radio source propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType of source (1)meta.id;stat.fitcharCOBRACOBRA identifiermeta.id;meta.maincharprimaryf_COBRAFlag on identifier (2)meta.codecharz[0.35/2.18] Redshiftsrc.redshiftfloatRAJ2000[0/22] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainRAC[0/22] RS Cluster Hour of right ascension (J2000)pos.eq.raDECRS Cluster Degree of declination (J2000)pos.eq.decAGN[-593/1216]? AGN offsetkpcpos.distancefloatnullableInf[0.8/146]? Infall angledegpos.posAngfloatnullableRS[1/9.6] Overdensity signifiance RSphys.density;arith.ratiofloatComb[0.8/6.7] Overdensity signifiance combinedmeta.notefloatJ/ApJ/907/65/table2COBRA radio source propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCOBRAIdentifier of the sourcemeta.id;meta.maincharTypeType of source (1)meta.id;stat.fitcharf_COBRAFlag on identifier (2)meta.codecharAng[36/161] Opening angledegpos.posAngfloate_Ang[0/7] Error on Angdegstat.errorfloatLength[123/595] Radio source lengthkpcsrc.morph.scLengthfloate_Length[-22/-1] Negative error on Lengthkpcstat.error;phys.sizefloatE_Length[2/18] Positive error on Lenghtkpcstat.error;stat.maxfloatFlux[3.87/286] Radio FluxmJyphot.flux.density;em.radiofloatP1.44[0.5/363] Radio power (10^25^W/Hz)W/Hzphys.luminosityfloate_P1.44[-40/-0] Negative error on P1.44W/Hzstat.errorfloatE_P1.44[0/40.53] Positive error on P1.44W/Hzstat.error;stat.maxfloat3.6mag[16.5/23.1]? 3.6{mu}m magnitudemagphot.mag;em.IR.3-4umfloatnullable3.6MAG[-25.3/-18.4]? 3.6{mu}m absolute magnitudemagphys.magAbs;em.IR.3-4umfloatnullable