J/MNRAS/392/1539ivo://CDS.VizieR/J/MNRAS/392/1539doi:10.26093/cds/vizier.73921539CDSTytler D.Gleed M.Melis C.Chapman A.Kirkman D.Lubin D.,Paschos P.Jena T.Crotts A.P.S.2024-07-08T20:15:06Z2009-11-21T15:59:10ZCDS support team

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

cds-question@unistra.frquasarsredshiftedWe present the first large sample of metal absorption systems in pairs of QSOs with sightlines separated by about 1Mpc at z=2. We found 690 absorption systems in the spectra of 310 QSOs in 170 pairings. Most systems show CIV or MgII absorption.2009MNRAS.392.1539Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/392/1539CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/126/2579 : SDSS quasar catalog. II. First data release (Schneider+, 2003)http://www.sdss.org : SDSS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/392/1539https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/392/1539http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/392/1539https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/392/1539https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/392/1539http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/392/1539GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/392/1539/table1 (QSO targets, in order of QSO pair label number, not RA.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/392/1539/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/392/1539/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/392/1539/table1?GETtext/xml+votable180.050000true11.1420.31763890.0055555555555555566/4099 4108 4238 4836 4920 4952 4987 5055 5231 5439 5494 5638 5676 5714 5754 5882 5942 6043 6060-6061 6068 6081 6117 6236 6425 6428 6465 6472 6487 6552 6643 7185 7427 7494 7500 7606 8192 8524 8638 8830 9256 9272 9325 9343 9419 9457 9978 9980 9991 10096 10104 10194 10202 10318 10383 10601 10707 10947 11317 11332 11348 11389 11400 11451 11465 11483 11500 11504 11788-11789 11844 11848-11849 12381 16494 16556 16586 16904 17295 17407 17492 17581 17584 17832 18021 18032 18112 18535 18791 18860 19101 19680 19682 22003 23072 23191 25420 25913 25943 25953 25957 25960 25982 26020 26023 26025 26178 26202 26205 26273 26277 26368 26373 26379 26969 26976 27018 27025 27031 27046 27074 27104 27199 27305 27658 27770 27845 27880 28195 30033 31342 31420 32497 32680 32682 35551 35580 35735 35768 35897 35937 35939 35945 35999 36010 36265 38767 38853 46649 46651 46930 46953 47018 47041 49122https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/392/1539?format=asciiOpticaldefaultJ/MNRAS/392/1539/table1QSO targets, in order of QSO pair label number, not RA.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzemEmission redshiftsrc.redshiftfloatPair[1,155] QSO pair numbermeta.id;meta.mainintprimarym_Pair[abc] Multiplicity index for pairs/tripletsmeta.code.multipcharSepSeparation between pairsarcsecpos.angDistancefloatJ/MNRAS/392/1539/table4The 690 metal-line absorption systems in the spectra of the 310 QSOsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPair[1,155] QSO pair numbermeta.id;meta.mainintm_Pair[abc] Multiplicity index for pairs/tripletsmeta.code.multipcharIonsIons or zem (2)meta.id;spect.linecharNotesNotes and system classifications (3)meta.notecharWrest? Rest frame equivalent width for one of the stronger doublet lines (1548, 2796 or 1238) in order of preference0.1nmspect.line.eqWidthfloatnullablef_Wrest[?] ? Wrest value for CIV 1550 or NV 1242meta.codecharWpm? Wpm is the minimum Wrest that we could have seen for the same line in the spectrum of the partner QSO at the same z0.1nmspect.line.eqWidthfloatnullablezRedshift (1)src.redshiftdouble