J/AJ/121/1840ivo://CDS.VizieR/J/AJ/121/1840doi:10.26093/cds/vizier.51211840CDSHall P.B.Sawicki M.Martini P.Finn R.A.Pritchet C.J.Osmer P.S.,McCarthy D.W.Evans A.S.Lin H.Hartwick F.D.A.2023-04-06T16:50:41Z2001-06-09T21:52:36ZCDS support team

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

cds-question@unistra.frgalaxy-clustersvisible-astronomybroad-band-photometryinfrared-photometryWe have previously identified an excess population of predominantly red galaxies around a sample of 31 radio-loud quasars (RLQs) at 1<z<2. Here we show that these fields have a surface density of extremely red objects (EROs, with R-K>6) 2.7 times higher than the general field. Assuming these EROs are passively evolved galaxies at the quasar redshifts, they have characteristic luminosities of only ~L*. Only one of four RLQ fields has an excess of J-K-selected EROs with J-K>2.5; thus, those objects are mostly unrelated to the quasars. We also present new multiwavelength data and analyses on the fields of four of these quasars at z_q_~1.54, obtained to build more detailed pictures of the environments of these quasars and the galaxies within them.2001AJ....121.1840Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/121/1840CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/121/1840https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/121/1840http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/121/1840https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/121/1840https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/121/1840http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/121/1840GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/121/1840/table4SED-fitting resultsModel[BC] Model (1)meta.id;stat.fitcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField (Q0835+580 or Q1126+101)obs.fieldchar[HSM2001]Identification numbermeta.id;meta.mainintoRAOffset in right ascensionarcsecpos.eq.ra;arith.difffloatoDEOffset in declinationarcsecpos.eq.dec;arith.difffloatKmagK magnitudemagphot.mag;em.IR.Kfloate_Kmagrms uncertainty on Kmagmagstat.errorfloatl_r-KLimit flag on r-Kmeta.code.errorcharr-Kr-K colour indexmagphot.color;em.opt.R;em.IR.Kfloate_r-Krms uncertainty on r-Kmagstat.errorfloatJ-KJ-K colour indexmagphot.color;em.IR.J;em.IR.Kfloate_J-K? rms uncertainty on J-Kmagstat.errorfloatnullablel_z-JLimit flag on z-Jmeta.code.errorcharz-J? z-J indexmagphot.color;em.opt;em.IRfloatnullablee_z-J? rms uncertainty on z-Jmagstat.errorfloatnullablechi2{chi}^2^_{nu}_ valuestat.fit.chi2floatzphPhotometric redshiftsrc.redshiftfloatE_zphError on zph (upper limit)stat.errorfloate_zphError on zph (lower limit)stat.errorfloatE(B-V)Reddeningmagphot.color.excessfloatE_E(B-V)Error on E(B-V) (upper limit)magstat.errorfloate_E(B-V)Error on E(B-V) (lower limit)magstat.errorfloatAgeAgeGyrtime.agefloatE_AgeError on Age (upper limit)Gyrstat.errorfloate_AgeError on Age (lower limit)Gyrstat.errorfloatNotesNotesmeta.notechar