SDSS damped Ly{alpha} survey: DR1 J/PASP/116/622 ivo://CDS.VizieR/J/PASP/116/622 doi:10.26093/cds/vizier.61160622 CDS Prochaska J.X. Herbert-Fort S. 2025-09-09T14:12:55Z 2006-09-12T18:48:32Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars redshifted We present the results from an automated search for damped Ly{alpha} (DLA) systems in the quasar spectra of Data Release 1 from the Sloan Digital Sky Survey (SDSS-DR1). At z~2.5, this homogeneous data set has greater statistical significance than the previous two decades of research. We derive a statistical sample of 71 DLA systems (>50 previously unpublished) at z>2.1 and measure HI column densities directly from the SDSS spectra. 2004PASP..116..622P https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/116/622 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/AJ/126/2579 : SDSS quasar catalog. II. 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Should Not be used for identification. meta.record int zem Emission redshift src.redshift float zstart ? Start redshift src.redshift float nullable zend ? End redshift src.redshift float nullable BAL [0-2] Flag for BAL activity (1) meta.code char zcand Redshift of DLA candidates, including the false-positive detections, separated by comma src.redshift char _RA Position derived from SDSS name (right ascension part) deg pos.eq.ra;meta.main _DE Position derived from SDSS name (declination part) deg pos.eq.dec;meta.main