J/ApJS/176/39ivo://CDS.VizieR/J/ApJS/176/39doi:10.26093/cds/vizier.21760039CDSQuillen A.C.Zufelt N.Park J.O'Dea C.P.Baum S.A.Privon G.,Noel-Storr J.Edge A.Russell H.Fabian A.Donahue M.Bregman J.N.,McNamara B.R.Sarazin C.L.2017-06-19T07:57:37Z2009-09-19T08:29:00ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesgalaxy-clustersinfrared-photometrysurveysWe report on an imaging survey with the Spitzer Space Telescope of 62 brightest cluster galaxies (BCGs) with optical line emission. These galaxies are located in the cores of X-ray luminous clusters selected from the ROSAT All-Sky Survey. We find that about half of these sources have a sign of excess infrared emission; 22 objects out of 62 are detected at 70um, 18 have 8/5.8um flux ratios above 1.0 and 28 have 24/8um flux ratios above 1.0. Altogether 35 of 62 objects in our survey exhibit at least one of these signs of infrared excess. Four galaxies with infrared excesses have a 4.5/3.6um flux ratio indicating the presence of hot dust, and/or an unresolved nucleus at 8um. Three of these have high measured [OIII](5007{AA})/H{beta} flux ratios suggesting that these four, Abell 1068, Abell 2146, Zwicky 2089, and R0821+07, host dusty active galactic nuclei (AGNs). Nine objects (including the four hosting dusty AGNs) have infrared luminosities greater than 10^11^L_{sun}_ and so can be classified as luminous infrared galaxies (LIRGs). Excluding the four systems hosting dusty AGNs, the excess mid-infrared emission in the remaining brightest cluster galaxies is likely related to star formation.2008ApJS..176...39Qhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/176/39CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/109/147 : ROSAT AGN content (Brinkmann+, 1995)J/MNRAS/301/881 : The ROSAT brightest cluster sample - I. (Ebeling+, 1998)J/MNRAS/306/857 : ROSAT Brightest Cluster Sample. III. (Crawford+, 1999)J/ApJ/519/533 : ROSAT observations of ACO clusters (David+, 1999)J/MNRAS/318/333 : Extended ROSAT Bright Cluster Sample (Ebeling+ 2000)J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/176/39https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/176/39http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/176/39https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/176/39https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/176/39http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/176/39GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/176/39/BCGs (Brightest cluster galaxy sample: luminosities, IR photometry and estimated IR luminosities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/176/39/BCGs?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/176/39/BCGs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/176/39/BCGs?GETtext/xml+votable180.050000true3.140833-16.4683330.0055555555555555566/3 87 361 2432 4394 4867 5536 5585 5881 6092 6611 6639 8223 8258 8264 8589 8788 8823 8963 9052 9144 9583 9664 9727 10180 10182 10442 10691 11672 11809 16434 17168 17237 17797 18034 19097 19314 19501 19516 19935 19941 20083 20095 20361 20371 21977 22007 23324 24853 26746 27595 27676 27760 28005 28220 28471 31537 32500 32693 34443 40615 464843.036429446233786e-20 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/176/39?format=asciiInfrareddefaultJ/ApJS/176/39/BCGsBrightest cluster galaxy sample: luminosities, IR photometry and estimated IR luminositiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id.parentcharn_Name[a-g, ] Notes on cluster (G1)meta.notecharRAJ2000BCG Hour of right ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000BCG Degree of declination (J2000) (2)pos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatLXX-ray luminosity based on 0.1-2.4keV ROSAT fluxes (in 10^44^erg/s) (3)1e+37Wphys.luminosity;em.X-rayfloatf_LX[a] X-ray contamination (4)meta.codecharr_LXLuminosity measurement reference (5)meta.ref;pos.frameintLHa? H{alpha} luminosity (in 10^40^erg/s)1e+33Wphys.luminosity;em.line.HalphafloatnullableO3/Hb? [OIII](5007)/H{beta} flux ratiophot.flux;arith.ratiofloatnullabler_O3/Hb? Optical line flux and ratio measurement reference (5)meta.ref;pos.frameintnullablel_L1.4GHzLimit flag on L1.4GHz (3{sigma} upper limit)meta.code.errorcharL1.4GHz? Integrated luminosities at 1.4GHz (6)1e+24W.Hz**-1phys.luminosity;em.radiofloatnullabler_L1.4GHz? Radio flux survey reference (5)meta.ref;pos.frameintnullableNote[*] Duplicate line for RXC J0751.3+5012 (pair of galaxies)meta.notecharl_LIRLimit flag on L_IR_meta.code.errorcharLIREstimated infrared luminosity of BCG (2)1e+37Wphys.luminosity;em.IRfloatF3.6umIRAC 3.6um aperture photometry (2)mJyphot.mag;em.IR.3-4umfloatF4.5umIRAC 4.5um aperture photometry (2)mJyphot.mag;em.IR.4-8umfloatF5.8umIRAC 5.8um aperture photometry (2)mJyphot.flux.density;em.IR.4-8umfloatF8umIRAC 8um aperture photometry (2)mJyphot.flux.density;em.IR.8-15umfloatl_F24umLimit flag on 24ummeta.code.errorcharF24umIRAC 24um aperture photometry (2)mJyphot.flux.density;em.IR.15-30umfloatl_F70umLimit flag on 70ummeta.code.errorcharF70umIRAC 70um aperture photometrymJyphot.flux.density;em.IR.30-60umint