J/A+A/556/A141ivo://CDS.VizieR/J/A+A/556/A141doi:10.26093/cds/vizier.35560141CDSZafar T.Peroux C.Popping A.Milliard B.Deharveng J.-M.Frank S.2017-09-27T05:55:39Z2014-01-09T15:45:46ZCDS support team

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

cds-question@unistra.frquasarsredshiftedWe present here a dataset of quasars observed with the Ultraviolet Visual Echelle Spectrograph (UVES) on the Very Large Telescope and available in the European Southern Observatory UVES Advanced Data Products (EUADP) archive. The sample is made up of a total of 250 high resolution quasar spectra with emission redshifts ranging from 0.191<=zem<=6.311. The total UVES exposure time of this dataset is 1560 h. Thanks to the high resolution of UVES spectra, it is possible to unambiguously measure the column density of absorbers with damping wings, down to N_HI_>~10^19^cm^-2^, which constitutes the sub-damped Ly{alpha} absorber (sub-DLA) threshold. Within the wavelength coverage of our UVES data, we find 150 damped Ly{alpha} systems (DLAs)/sub-DLAs in the range 1.5<zabs<4.7. Damped absorbers, seen in the spectra of background quasars, are unique probes to select HI-rich galaxies. These galaxies allow one to estimate the neutral gas mass over cosmological scales. The neutral gas mass is a possible indicator of gas consumption as star formation proceeds. The damped Ly{alpha} absorbers (DLAs; N_HI_>=2x10^20^cm^-2^) and sub-DLAs (10^19^<=N_HI_<=2x10^20^cm^-2^) are believed to contain a large fraction of neutral gas mass in the Universe. In aper I of the series, we presented the results of a search for DLAs and sub-DLAs in the European Southern Observatory (ESO) Ultraviolet Visual Echelle Spectrograph (UVES) advanced data products dataset of 250 quasars. Here we use an unbiased subsample of sub-DLAs from this dataset to derive their statistical properties. We built a subset of 122 quasars ranging from 1.5<z_em_<5.0, suitable for statistical analysis. The statistical sample was analyzed in conjunction with other sub-DLA samples from the literature. This resulted in a combined sample of 89 sub-DLAs over a redshift path of {Delta}z=193.2013A&A...556A.141Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/556/A141CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/556/A141https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/556/A141http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/556/A141https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/556/A141https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/556/A141http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/556/A141GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/556/A141/sample (Properties of the EUADP quasar sample (table1 of paper I, Zafar et al., 2013A&A...556A.140Z))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/556/A141/sample?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/556/A141/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/556/A141/sample?GETtext/xml+votable180.050000true0.4583333-1.99444440.0055555555555555566/0 2 4124 4168 4279 4448 4820 4850 8289 8371 9095 16386 16494 16553 16555 16625 16640 16652-16653 16656 16658 16664 16677 16752 16798 17190 17203 17239 17257 17314 17317 17404 17406 17518 17735 17755 17816 17818 17833 17835 17857 17895 17917 18001-18002 18004 18007 18081 18084 18086 18092 18096 18200 18271 18366 18504 18642 18769 18780 18790 19026 19206 19682 20032 20450 20516 20725 21012 21126 21180 21935 22578 22593 22917 23099 23190-23191 24084 24941 25009 25117 25120 25142 25245 25285 25294 25344 25413 25427 25540 25628 25677 25697 25827 25829 25863 25934 25943 25950 26000 26115 26165-26167 26175 26196 26239 26453 26614 26724 26878 26881-26882 27034 27037 27041 27161 27215 27232 27269 27415 27440 27652 27687 27704 27728 27747 27756 27855 28039 28042 28538 28548 29570 29675 29795 31313 31686 32466 34019 34044 34107 34202 34210 34264 34291 34379 34424 34437 34485 34503 34570 34850 35006 35213 35241 35258 35277 35281 35496 35522 35570 35585 35595 35627 35737 35751 35760 35769 35774 35836 35842 35945 36101 36126 36130 36151 36217 36265 36346 36417 36655 36734 36840 37203 38639 38744 38767 38787 38853 38878 39100 39456 40060 43366 43903 43983 44000 44269 44799 44833 45621 46418 46542 46638 46651 46704 46731 46737 46753 46850 46856 46953 47007 47016 47091 47941 48149 48474 48610 49106https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/556/A141?format=asciiOpticaldefaultJ/A+A/556/A141/sampleProperties of the EUADP quasar sample (table1 of paper I, Zafar et al., 2013A&A...556A.140Z)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharprimaryNpNumber of parameter sets for this quasarmeta.numberintnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainmag? Simbad V, B or J magnitudemagphot.magfloatnullablen_mag[VBJ] Band for magnitudemeta.notecharzemEmission redshift of the quasarsrc.redshiftfloatCovWavelength coverage(s) of the spectrainstr.bandwidthcharProgESO program ID(s)meta.id;obscharNsNumber of spectra used for co-adding, where spectra from BLUE, RED upper and lower arms are counted separatelymeta.numberintTexpTotal exposure time of each quasarstime.duration;obs.exposureintSimbadNameSimbad column added by the CDSmeta.idcharJ/A+A/556/A141/paramComplete log of 250 EUADP quasars of which 122 contribute to the statistical EUADP sample (table1 of paper II)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharzemEmission redshiftsrc.redshiftfloatzmin? Minimum redshift (1)src.redshiftfloatnullablezmax? Maximun redshift (1)src.redshiftfloatnullablen_zmax[s] s for EUADP Sample (2)meta.notecharf_zmax[,] , indicates other redshift interval for the quasarmeta.codecharzLLS? redshift of Ly{alpha}-Limit System (LLS)src.redshift;pos.heliocentricfloatnullablezabs? DLA/sub-DLA redshiftsrc.redshiftfloatnullablen_zabs[s] s for Sample (2)meta.notecharl_logNHI[~< ] Limit flag on logLHImeta.code.errorcharlogNHI? HI column density of DLAs/sub-DLAslog(cm**-2)phys.columnDensityfloatnullablee_logNHI? rms uncertainty on logNHIlog(cm**-2)stat.errorfloatnullablef_logNHI[s] s for Sample (2)meta.codecharRef? Reference for absorber, in refs.dat filemeta.ref;pos.frameintnullableJ/A+A/556/A141/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintprimaryBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar