J/ApJ/764/9ivo://CDS.VizieR/J/ApJ/764/9doi:10.26093/cds/vizier.17640009CDSMatejek M.S.Simcoe R.A.Cooksey K.L.Seyffert E.N.2017-12-05T05:09:53Z2014-11-14T09:30:54ZCDS support team

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

cds-question@unistra.frquasarsredshiftedline-intensitiesWe present a detailed study of HI and metals for 110 MgII absorption systems discovered at 1.98<=z<=5.33 in the infrared spectra of high-redshift QSOs. Using new measurements of rest-frame UV lines from optical spectra of the same targets, we compare the high-redshift sample with carefully constructed low-redshift control samples from the literature to study evolutionary trends from z=0-->5.33 (>12Gyr). We observe a significant strengthening in the characteristic N(HI) for fixed MgII equivalent width as one moves toward higher redshift. Indeed, at our sample's mean <Z>=3.402, all MgII systems are either damped Ly{alpha} absorbers (DLAs) or sub-DLAs, with 40.7% of systems exceeding the DLA threshold (compared to 16.7% at <Z>=0.927). We set lower limits on the metallicity of the MgII systems where we can measure HI; these results are consistent with the full DLA population. The classical MgII systems (W({lambda}2796)_0_=0.3-1.0{AA}), which preferentially associate with sub-DLAs, are quite metal rich at ~0.1 solar. We applied quantitative classification metrics to our absorbers to compare with low-redshift populations, finding that weak systems are similar to classic MgII absorbers at low redshift. The strong systems either have very large MgII and FeII velocity spreads implying non-virialized dynamics or are more quiescent DLAs. There is tentative evidence that the kinetically complex systems evolve in similar fashion to the global star formation rate. We speculate that if weaker MgII systems represent accreting gas as suggested by recent studies of galaxy-absorber inclinations, then their high metal abundance suggests re-accretion of recently ejected material rather than first-time infall from the metal-poor intergalactic medium, even at early times.2013ApJ...764....9Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/764/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)J/ApJ/763/37 : Metals in SDSS QSOs. I. 1.5<z<4.5 CIV (Cooksey+, 2013)J/ApJ/761/112 : Pap. I. MgII absorption QSOs with FIRE (Matejek+, 2012)J/ApJ/748/131 : MgII absorbers in SDSS-DR7 quasar catalog (Shen+, 2012)J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)J/ApJ/724/L176 : MgII absorbing gas around galaxies (Chen+, 2010)J/ApJ/714/1521 : Spectroscopy of galaxies around distant QSOs (Chen+, 2010)J/ApJ/698/819 : MgII and LRGs cross-correlation analysis (Lundgren+, 2009)J/ApJ/679/239 : Associated MgII absorbers (Vanden+, 2008)J/ApJ/660/1093 : Weak MgII absorbers at 0.4<z<2.4 (Narayanan+, 2007)J/ApJS/171/29 : UCSD/Keck DLA Abundance Database (Prochaska+, 2007)J/ApJ/639/766 : SDSS-DR3 strong MgII absorbers (Prochter+, 2006)J/ApJ/636/610 : Damped Ly{alpha} systems at z<1.65 (Rao+, 2006)J/MNRAS/371/495 : Cat. of 1806 MgII absorbers from SDSS DR3 (Bouche+, 2006)J/ApJ/635/123 : The SDSS-DR3 damped Ly{alpha} survey (Prochaska+, 2005)J/MNRAS/354/L25 : MgII absorbers in SDSS QSOs (Bouche+, 2004)J/A+A/283/759 : CIV QSO absorption systems (Petitjean+ 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/764/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/764/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/764/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/764/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/764/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/764/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/764/9/linefire (List of sight lines observed with FIRE (table added by CDS))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/764/9/linefire?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/764/9/linefire?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/764/9/linefire?GETtext/xml+votable180.050000true1.7154167-62.13444440.005555555555555556Cone search capability for table J/ApJ/764/9/lowz (List of sight lines in the low-z compilation (table added by CDS))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/764/9/lowz?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/764/9/lowz?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/764/9/lowz?GETtext/xml+votable180.050000true0.92758.99444440.0055555555555555566/272 532 1546 2257 2348 2397 4027 4273 4280 4322 4332 4333 4448 4594 4662 4693 4862 5264 5271 5306 5870 5918 6618 6853 7253 7349 7424 7706 7741 7857 7964 8117 8253 8276 8300 8303 8360 8510 8638 8709 8713 8858 8912 8939 9252 9272 9519 10084 10298 10495 10501 10659 10765 10801 10807 10940 11502 11723 11725 11845 11924 12740 12886 13213 14520 15241 15300 16405 16417 16589 16622 16652 16656 16752 17509 17516 17561 17639 17662 17693 17749 17813 17818 17820 17825 17849 17859 18030 18032 18039 18042 18081 18084 18099 18101 18366 18627 18642 18945 19190 19239 19416 19456 19483 19510 19536 19542 19560 19608 19685 19703 19807 19842 20116 20133 20202 20516 21012 21126 21714 21872 21990 22364 22452 22501 22544 22576 22578 22594 22595 22690 23016 23121 23284 23304 23397 25120 25540 25817 25818 25977 26000 26015 26056 26125 26239 26245 26276 26323 26496 26524 26525 26614 26881 27083 27127 27225 27232 27341 27423 27440 27514 27542 27549 27717 27739 27756 27761 27846 27964 27993 28086 28148 28532 28539 28666 30010 30029 31176 31313 31318 31333 31355 31529 31656 31686 31857 33269 33746 34202 34210 34503 34512 34747 34850 35496 35581 35749 35759 35897 35952 36086 36101 36260 36320 36417 36445 36495 36522 36648 36725 36834 40479 43957 44310 44387 44463 44776 46864 47001 47941 48149 48474 48610 48757 48965https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/764/9?format=asciiOpticaldefaultJ/ApJ/764/9/linefireList of sight lines observed with FIRE (table added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSLineSightline as in tables 2, 5-8meta.idcharSNameName understandable by SIMBADmeta.id;meta.maincharSDSSQCross-match with the SDSS-DR7 and -DR10 quasar catalogs within 1"meta.ref.urlintnullableALSNumber of ALS measures for this QSO (tables 2, 5--8)meta.numberintnullableSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/ApJ/764/9/lowzList of sight lines in the low-z compilation (table added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSLineSightline as in table 3 (HHMM+DDMM; B1950)meta.idcharSNameName understandable by SIMBADmeta.id;meta.maincharSDSSQCross-match with the SDSS-DR7 and -DR10 quasar catalogs within 1"meta.ref.urlintnullableALSNumber of ALS measures for this QSO (table 3)meta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/ApJ/764/9/table2Absorption properties for the FIRE MgII-selected sample: Mg ionsSLineSightline namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/110] Running sequence numbermeta.id;meta.mainintf_Seq[bd] Suspect result (1)meta.codecharz[1.9/5.4] Redshiftsrc.redshiftfloatW2796[0.08/5.6] MgII2796 rest-frame equivalent width0.1nmspect.line.eqWidthfloate_W2796[0.01/0.2] W2796 uncertainty0.1nmstat.errorfloatW2803[0.08/5.1] MgII2803 rest-frame equivalent width0.1nmspect.line.eqWidthfloate_W2803[0.01/0.2] W2803 uncertainty0.1nmstat.errorfloatl_W28523{sigma} upper limit flag on W2852meta.code.errorcharW2852[0.02/1.6]? MgI2852 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2852[c] c: blended linemeta.codechare_W2852[0.004/0.1]? W2852 uncertainty0.1nmstat.errorfloatnullableClassClassificationsrc.classcharJ/ApJ/764/9/table3The low redshift compilation samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number (L1 to L313)meta.id;meta.maincharSLineSightline (HHMM+DDMM; B1950)meta.idcharzQSO[0.5/4.7] QSO redshiftsrc.redshift;pos.heliocentricfloatz[0.005/2.5] Redshiftsrc.redshiftfloatW2796[0.03/5.8] Equivalent width of 2796 line0.1nmspect.line.eqWidthfloate_W2796[0/0.5] Uncertainty in W27960.1nmstat.errorfloatl_W1215The 5{sigma} limit flag on W1215meta.code.errorcharW1215[0.3/18.1]? Equivalent width of 1215 line0.1nmspect.line.eqWidthfloatnullablef_W1215[c] Blended line (1)meta.codechare_W1215[0/1.1]? Uncertainty in W12150.1nmstat.errorfloatnullablel_W1393The 5{sigma} limit flag on W1393meta.code.errorcharW1393? Equivalent width of 1393 line0.1nmspect.line.eqWidthfloatnullablef_W1393[c] Blended line (1)meta.codechare_W1393? Uncertainty in W13930.1nmstat.errorfloatnullablel_W1548The 5{sigma} limit flag on W1548meta.code.errorcharW1548? Equivalent width of 1548 line0.1nmspect.line.eqWidthfloatnullablee_W1548? Uncertainty in W15480.1nmstat.errorfloatnullablel_W2600The 5{sigma} limit on W2600meta.code.errorcharW2600[0.004/3.4]? Equivalent width of 2600 line0.1nmspect.line.eqWidthfloatnullablef_W2600[cdef] Blend, or identified line (1)meta.codechare_W2600[0/0.3]? Uncertainty in W26000.1nmstat.errorfloatnullableRefReference(s) (see refs.dat file)meta.ref;pos.framecharJ/ApJ/764/9/table6Absorption properties for the FIRE MgII-selected sample: Fe ionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/110] Running sequence numbermeta.id;meta.mainintf_Seq[b] b: suspected false positivemeta.codecharSLineSightline namemeta.idcharz[1.9/5.4] Redshiftsrc.redshiftfloatl_W16083{sigma} upper limit flag on W1608meta.code.errorcharW1608[0.02/0.9]? FeII1608 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1608[c] c: blended linemeta.codechare_W1608[0.009/0.2]? W1608 uncertainty0.1nmstat.errorfloatnullablel_W23443{sigma} upper limit flag on W2344meta.code.errorcharW2344[0.02/2.5]? FeII2344 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2344[c] c: blended linemeta.codechare_W2344[0.006/0.2]? W2344 uncertainty0.1nmstat.errorfloatnullablel_W23743{sigma} upper limit flag on W2374meta.code.errorcharW2374[0.01/2.3]? FeII2374 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2374[c] c: blended linemeta.codechare_W2374[0.008/0.2]? W2374 uncertainty0.1nmstat.errorfloatnullablel_W23823{sigma} upper limit flag on W2382meta.code.errorcharW2382[0.01/3.4]? FeII2382 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2382[c] c: blended linemeta.codechare_W2382[0.007/0.2]? W2382 uncertainty0.1nmstat.errorfloatnullablel_W25863{sigma} upper limit flag on W2586meta.code.errorcharW2586[0.03/2.5]? FeII2586 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2586[c] c: blended linemeta.codechare_W2586[0.007/0.2]? W2586 uncertainty0.1nmstat.errorfloatnullablel_W26003{sigma} upper limit flag on W2600meta.code.errorcharW2600[0.03/3.4]? FeII2600 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W2600[c] c: blended linemeta.codechare_W2600[0.008/0.4]? W2600 uncertainty0.1nmstat.errorfloatnullableJ/ApJ/764/9/table7Absorption properties for the FIRE MgII-selected sample: Si ionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning sequence numbermeta.id;meta.mainintf_Seq[b] b: suspected false positivemeta.codecharSLineSightline namemeta.idcharz[2.2/5.4] Redshiftsrc.redshiftfloatl_W12603{sigma} upper limit flag on W1260meta.code.errorcharW1260[0.09/0.4]? SiII1260 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1260[c] c: blended linemeta.codechare_W1260[0.02/0.05]? W1260 uncertainty0.1nmstat.errorfloatnullablel_W13043{sigma} upper limit flag on W1304meta.code.errorcharW1304[0.007/0.5]? SiII1304 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablee_W1304[0.001/0.008]? W1304 uncertainty0.1nmstat.errorfloatnullablel_W13933{sigma} upper limit flag on W1393meta.code.errorcharW1393[0.06/1.6]? SiIV1393 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1393[c] c: blended linemeta.codechare_W1393[0.004/0.09]? W1393 uncertainty0.1nmstat.errorfloatnullablel_W14023{sigma} upper limit flag on W1402meta.code.errorcharW1402[0.03/0.9]? SiIV1402 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1402[c] c: blended linemeta.codechare_W1402[0.003/0.09]? W1402 uncertainty0.1nmstat.errorfloatnullablel_W15263{sigma} upper limit flag on W1526meta.code.errorcharW1526[0.02/1]? SiII1526 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1526[c] c: blended linemeta.codechare_W1526[0.002/0.2]? W1526 uncertainty0.1nmstat.errorfloatnullablel_W18083{sigma} upper limit flag on W1808meta.code.errorcharW1808[0.03/0.8]? SiII1808 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1808[c] c: blended linemeta.codechare_W1808[0.003/0.013]? W1808 uncertainty0.1nmstat.errorfloatnullableJ/ApJ/764/9/table8Absorption properties for the FIRE MgII-selected sample: C and Al ionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqIndex numbermeta.id;meta.mainintf_Seq[b] b: suspected false positivemeta.codecharSLineSightline (HHMM+DDMM; B1950)meta.idcharz[2/5.4] Redshiftsrc.redshiftfloatl_W13343{sigma} upper limit flag on W1334meta.code.errorcharW1334[0.03/0.9]? CII1334 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablee_W1334[0.002/0.06]? W1334 uncertainty0.1nmstat.errorfloatnullablel_W15483{sigma} upper limit flag on W1548meta.code.errorcharW1548[0.02/1.4]? CIV1548 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablee_W1548[0.002/0.2]? W1548 uncertainty0.1nmstat.errorfloatnullablel_W15503{sigma} upper limit flag on W1550meta.code.errorcharW1550[0.02/1.3]? CIV1550 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1550[c] c: blended linemeta.codechare_W1550[0.002/0.2]? W1550 uncertainty0.1nmstat.errorfloatnullablel_W16703{sigma} upper limit flag on W1670meta.code.errorcharW1670[0.02/1.2]? AlII1670 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1670[c] c: blended linemeta.codechare_W1670[0.006/0.2]? W1670 uncertainty0.1nmstat.errorfloatnullablel_W18543{sigma} upper limit flag on W1854meta.code.errorcharW1854[0.02/2.2]? AlIII1854 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1854[c] c: blended linemeta.codechare_W1854[0.006/0.2]? W1854 uncertainty0.1nmstat.errorfloatnullablel_W18623{sigma} upper limit flag on W1862meta.code.errorcharW1862[0.02/2.1]? AlIII1862 rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullablef_W1862[c] c: blended linemeta.codechare_W1862[0.006/0.07]? W1862 uncertainty0.1nmstat.errorfloatnullableJ/ApJ/764/9/refsReferencesRefReference numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBibCodeBibcodemeta.bib.bibcodecharAutAuthor's name(s)meta.bib.authorcharCommCommentmeta.notecharJ/ApJ/764/9/table5Absorption properties for the FIRE MgII-selected sample: HI1215 and OI1302recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/100] Index numbermeta.id;meta.mainintSLineSightline namemeta.idcharz[2.5/4.5] Redshiftsrc.redshiftfloatW1215[1.2/36.8] HI1215 rest-frame equivalent-width0.1nmspect.line.eqWidthfloate_W1215[0.002/1.1] W1215 uncertainty0.1nmstat.errorfloatl_W1302Limit flag on W1302meta.code.errorcharW1302? OI1302 rest-frame equivalent-width0.1nmspect.line.eqWidthfloatnullablef_W1302[b] b: blended linemeta.codechare_W1302[0.002]? W1302 uncertainty0.1nmstat.errorfloatnullable