J/ApJ/796/140ivo://CDS.VizieR/J/ApJ/796/140doi:10.26093/cds/vizier.17960140CDSProchaska J.X.Lau M.W.Hennawi J.F.2017-09-18T13:01:36Z2017-08-22T14:56:49ZCDS support team

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

cds-question@unistra.frquasarsgalaxy-clustersredshiftedline-intensitiesWe survey the incidence and absorption strength of the metal-line transitions C II 1334 and C IV 1548 from the circumgalactic medium (CGM) surrounding z~2 quasars, which act as signposts for massive dark matter halos M_halo_~10^12.5^ M_{sun}_. On scales of the virial radius (r_vir_~160 kpc), we measure a high covering fraction f_C_=0.73+/-0.10 to strong C II 1334 absorption (rest equivalent width W_1334_>=0.2 {AA}), implying a massive reservoir of cool (T~10^4^ K) metal enriched gas. We conservatively estimate a metal mass exceeding 10^8^ M_{sun}_. We propose that these metals trace enrichment of the incipient intragroup/intracluster medium that these halos eventually inhabit. This cool CGM around quasars is the pinnacle among galaxies observed at all epochs, as regards covering the fraction and average equivalent width of H I Ly{alpha} and low-ion metal absorption. We argue that the properties of this cool CGM primarily reflect the halo mass, and that other factors such as feedback, star-formation rate, and accretion from the intergalactic medium are secondary. We further estimate that the CGM of massive, z~2 galaxies accounts for the majority of strong Mg II absorption along random quasar sightlines. Last, we detect an excess of strong C IV 1548 absorption (W_1548_>=0.3 {AA}) over random incidence to the 1 Mpc physical impact parameter and measure the quasar-C IV cross-correlation function: {zeta}_CIV_-Q(r)=(r/r_0_)^-{gamma}^ with r_0_=7.5_-1.4_^+2.8^ h^-1^ Mpc and {gamma}=1.7_-0.2_^+0.1^. Consistent with previous work on larger scales, we infer that this highly ionized C IV gas traces massive (10^12^ M_{sun}_) halos.2014ApJ...796..140Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/796/140CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/69 : Asiago Catalogue of QSOs (Barbieri+ 1983)VII/241 : The 2dF QSO Redshift Survey (Croom+ 2004)J/AJ/131/1 : Binary quasars in the SDSS (Hennawi+, 2006)J/AJ/133/2222 : Clustering of high-redshift QSOs from SDSS (Shen+, 2007)J/MNRAS/401/2715 : CIV column densities in z<2.5 QSOs (D'odorico+, 2010)J/ApJ/762/L19 : Quasar pairs spectroscopy (Prochaska+, 2013)J/ApJ/776/136 : QPQ VI. HI absorption of z~2 quasars (Prochaska+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/796/140https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/796/140http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/796/140https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/796/140https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/796/140http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/796/140GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/796/140/table1 (QPQ7 Spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/796/140/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/796/140/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/796/140/table1?GETtext/xml+votable180.050000true0.5694519-5.50211690.005555555555555556Cone search capability for table J/ApJ/796/140/table5 (SDSS C IV Survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/796/140/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/796/140/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/796/140/table5?GETtext/xml+votable180.050000true39.8520169-9.02740920.0055555555555555566/4115 4185 4229 4238 4269 4346 4604 4608 4626 4631 4665 4710 4761 4762 4790 4800 4802 4943 4952 4959 5002 5025 5039 5047 5092 5162 5331 5359 5360 5362 5402 5410 5428 5442 5445 5454 5494 5504 5529 5551 5586 5648 5649 5657 5669 5686 5704 5709 5715 5722 5723 5725 5739 5754 5772 5804 5822 5828 5841 5846 5855 5920 5944 5957 5971 5982 6066 6068 6132 6142 6166 6216 6226 6230 6246 6345 6353 6363 6385 6409 6422 6432 6441 6449 6454 6464 6469 6470 6471 6489 6523 6534 6536 6539 6541 6549 6551 6576 6579 6604 6617 6624 6634 6637 6643 6649 7253 7256 7305 7316 7440 7500 7503 8194 8212 8231 8262 8330 8338 8414 8473 8489 8494 8508 8538 8547 8550 8553 8583 8621 8623 8953 8983 8991 9033 9050 9052 9081 9118 9131 9135 9144 9182 9222 9225 9272 9307 9332 9350 9364 9375 9378 9381 9395 9410 9412 9419 9446 9451 9477 9486 9729 9730 9813 9821 9861 9864 9877 9958 9961 9969 9973 9978 10016 10311 10362 10365 10366 10386 10446 10451 10454 10459 10470 10472 10492 10496 10497 10498 10501 10511 10512 10513 10529 10540 10545 10547 10601 10625 10636 10658 10675 10724 10743 10776 10779 10787 10791 10796 10798 10799 10801 10859 10860 10899 10912 10914 10919 10975 10976 11024 11025 11129 11212 11253 11258 11347 11395 11446 11803 11813 11907 11925 11932 12364 12369 17223 17233 17357 17661 17686 17693 17732 17753 17758 17764 17772 17773 17791 17807 17811 17820 17829 17831 17836 17840 17847 17877 17900 18010 18011 18026 18043 18051 18061 18071 18076 18082 18083 18084 18087 18088 18091 18192 18202 18240 18283 18381 18408 18416 18685 18743 18751 18798 18800 18812 18843 18855 18858 18860 18879 18947 19026 19028 19029 19043 19052 19053 19058 19068 19087 19089 19092 19094 19109 19111 19116 19137 19138 19162 19167 19182 19186 19209 19354 19380 19387 19388 19692 20032 21844 22006 22367 23104 23144 23189 25592 25909 25931 25943 25953 25956 25968 25972 25977 25980 25996 26003 26004 26022 26028 26033 26064 26074 26078 26091 26096 26098 26103 26195 26217 26230 26234 26235 26238 26245 26246 26248 26257 26261 26262 26264 26268 26277 26283 26313 26315 26324 26343 26346 26350 26353 26368 26955 26965 26966 26968 26983 26990 27006 27017 27023 27030 27044 27069 27075 27084 27191 27211 27220 27221 27222 27224 27233 27243 27248 27261 27263 27281 27289 27297 27298 27299 27309 27341 27343 27352 27356 27360 27396 27430 27439 27459 27509 27528 27588 27654 27682 27683 27701 27782 27803 27932 28041 28173 28174 28332 28539 28601 28622 28625 28626 28649 28651 31357 31411 31444 31447 31454 31455 31467 31530 31661 31691 31716 32395 32426 32430 32435 32443 32446 32457 32463 32481 32500 32673 32680 36784 36862 45047 49106https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/796/140?format=asciiOpticaldefaultJ/ApJ/796/140/table1QPQ7 SpectraSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintb/gQBackground quasar identifier (JHHMMSS.ss+DDMMSS.s)meta.id.assoccharf/gQForeground quasar identifier (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharzfgForeground quasar redshiftsrc.redshift;pos.heliocentricfloatRphysImpact parameterkpcsrc.impactParamintInstrInstrument used in the observationinstr.setup;obscharWaveWavelength coverage of Instr in Angstroms (1)0.1nmem.wlcharEWEquivalent widths in table2meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/796/140/table2QPQ7 EW MeasurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf/gQForeground quasar identifier (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharb/gQBackground quasar identifier (JHHMMSS.ss+DDMMSS.s)meta.id.assoccharRphysImpact parameterkpcsrc.impactParamintzfgForeground quasar redshiftsrc.redshift;pos.heliocentricfloatdelvVelocity offset (1)km/sphys.veloc;arith.diffintW1334? Equivalent width of C II 1334{AA} line (G1)0.1nmspect.line.eqWidthfloatnullablee_W1334? Uncertainty in W1334 (G1)0.1nmstat.errorfloatnullableW1548? Equivalent width of C IV 1548{AA} line (G1)0.1nmspect.line.eqWidthfloatnullablee_W1548? Uncertainty in W1548 (G1)0.1nmstat.errorfloatnullableJ/ApJ/796/140/table5SDSS C IV SurveySimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQuasarQuasar identifier (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharzqQuasar emission redshiftsrc.redshift;pos.heliocentricfloatzstartStarting redshift (1)src.redshift;pos.heliocentricfloatzendEnding redshift (2)src.redshift;pos.heliocentricfloatzCIV? C IV 1548 line redshiftsrc.redshift;pos.heliocentricfloatnullableWCIV? Equivalent width of C IV 1548{AA} line (G1)0.1nmspect.line.eqWidthfloatnullablee_WCIV? Uncertainty in WCIV0.1nmstat.errorfloatnullableSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main