J/AJ/154/114ivo://CDS.VizieR/J/AJ/154/114doi:10.26093/cds/vizier.51540114CDSO'Meara J.M.Lehner N.Howk J.C.Prochaska J.X.Fox A.J.Peeples M.S.,Tumlinson J.O'Shea B.W.2021-04-07T12:57:10Z2020-07-29T08:58:04ZCDS support team

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

cds-question@unistra.frsurveysquasarsredshiftedWe present and make publicly available the second data release (DR2) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) survey. KODIAQ DR2 consists of a fully reduced sample of 300 quasars at 0.07<z_em_<5.29 observed with HIRES at high resolution (36000{<=}R{<=}103000). DR2 contains 831 spectra available in continuum normalized form, representing a sum total exposure time of ~4.9 megaseconds on source. These co-added spectra arise from a total of 1577 individual exposures of quasars taken from the Keck Observatory Archive (KOA) in raw form and uniformly processed. DR2 extends DR1 by adding 130 new quasars to the sample, including additional observations of QSOs in DR1. All new data in DR2 were obtained with the single-chip Tektronix TK2048 CCD configuration of HIRES in operation between 1995 and 2004. DR2 is publicly available to the community, housed as a higher level science product at the KOA and in the igmspec database (v03).2017AJ....154..114Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/114CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/AJ/150/111 : KODIAQ DR1 (O'Meara+, 2015)J/ApJS/221/2 : Keck+Magellan survey for LLSs. III. (Prochaska+, 2015)J/ApJ/788/119 : Properties of the highly ionized gas of quasars (Lehner+, 2014)J/ApJ/770/138 : Metallicities of Lyman limit systems and DLA (Lehner+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/114https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/114http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/114https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/114https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/114http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/114GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/114/table3 (from the second Data Release (DR2) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/114/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/114/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/114/table3?GETtext/xml+votable180.050000true0.4583333-1.99444440.005555555555555556Cone search capability for table J/AJ/154/114/table2 (from the first Data Release (DR1) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/114/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/114/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/114/table2?GETtext/xml+votable180.050000true0.4583333-1.99444440.0055555555555555566/6 8 523 532 579 592 993 2172 2247 2348 2611 4027 4259 4273 4279 4322 4333 4481 4596 4623 4672 4820 4946 4947 4950 5035 5039 5051 5185 5270 5272 5306 5333 5341 5563 5696 5723 5780 5886 5952 6010 6028 6030 6042 6062 6070 6106 6205 6219 6236 6252 6403 6425 6465 6565 6576 6579 6591 6618 6644 6652 6853 7168 7253 7291 7309 7424 7426 7500 7709 7857 7964 8303 8343 8345 8552 8912 9095 9112 9114 9138 9272 9402 9412 9464 9705 9730 9759 9801 9806 9827 9940 9946 9973 10039 10074 10103 10140 10188 10312 10336 10353 10405 10416 10432 10602 10698 10752 10843 10992 10994 11040 11092 11107 11113 11283 11321 11339 11364 11418 11498 11529 11581 11596 11765 11786 11796 12317 12563 14946 15351 16269 16500 16652 16654 16717 16831 17190 17203 17239 17244 17299 17317 17404 17510 17639 17655 17693 17735 17749 17751 17772 17778 17805 17813 17895 17917 18029 18030 18042 18060 18084 18101 18116 18200 18271 18366 18389 18406 18408 18466 18521 18582 18642 18661 18669 18765 18769 18858 18880 18912 19087 19206 19216 19408 19416 19461 19483 19494 19601 19609 19680 19682 19688 19734 19779 20016 20032 20202 20450 20516 21012 21126 21180 22364 22576 22578 22593 22594 22715 22917 23099 23203 23210 23284 23304 25285 25599 25932 25986 26125 26166 26170 26245 26269 26303 26429 26479 26533 26553 26603 26882 27161 27225 27232 27247 27365 27416 27423 27437 27485 27508 27510 27549 27578 27650 27654 27667 27687 27747 27845 27846 28039 28042 28148 28281 28356 28532 28611 28614 28648 29795 30029 31331 31551 31622 32507 34503 35585 35772 35916 36086 36417 36495 36771 36784 36862 40274 43903 47001 47941 48474 48498 48567 48610 48965 49086 49100https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/114?format=asciidefaultJ/AJ/154/114/table3from the second Data Release (DR2) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKODIAQQuasar designation (JHHMMSS+DDMMSS format) in Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ)meta.id;meta.maincharNdNumber of new observations since DR1 (table2)meta.numberintnullablezem[0/5.3] Emission line derived redshiftsrc.redshiftfloatExp[600/114000] Total exposure timestime.duration;obs.exposureintOlam0[2995/6215] Lower observed wavelength of coverage; in {AA}0.1nmem.wlintOlam1[4602/9725] Upper observed wavelength of coverage; in {AA}0.1nmem.wlintRlam0[743/6031] Lower rest wavelength; in {AA} (1)0.1nmem.wlintRlam1[1195/8388] Upper rest wavelength; in {AA} (1)0.1nmem.wlintDR1Indicates a quasar in the DR1 (O'Meara et al. 2015, Cat. J/AJ/150/111)meta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Table 2 or from DR1 (O'Meara+, 2015, J/AJ/150/111) (right ascension part)degpos.eq.ra;meta.main_DEPositions from Table 2 or from DR1 (O'Meara+, 2015, J/AJ/150/111) (declination part)degpos.eq.dec;meta.mainJ/AJ/154/114/table2from the first Data Release (DR1) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKODIAQQuasar designation (JHHMMSS+DDMMSS format) in Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) (1)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainzem[0/4.6] Emission line derived redshift (2)src.redshiftfloatDateDate of the observationtime.epochcharPIPrinciple Investigator nameobs.observercharExp[1000/47938] Total exposure timestime.duration;obs.exposureintDeckerDecker identifier (B2, C1, C2, C5, or D1)instr.setupcharlambda0[3027/6522] Lower wavelength of spectrum; in {AA} (3)0.1nmem.wlintlambda1[4375/8934] Upper wavelength of spectrum; in {AA} (3)0.1nmem.wlintSDSSDisplay the photometric data from SDSS-DR12 (cat. V/147) within 1.5''meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/154/114/table1High-Resolution Echelle Spectrograph (HIRES) deckers used in the first Data Release (DR1) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDeckerDecker identifierinstr.setupcharWidthWidtharcsecspect.line.widthfloatRSpectra resolution (FWHM)spect.resolutionint