The sloan digital sky survey quasar catalog. III. Third data release

Donald P. Schneider, Patrick B. Hall, Gordon T. Richards, Daniel E. Vanden Berk, Scott F. Anderson, Xiaohui Fan, Sebastian Jester, Chris Stoughton, Michael A. Strauss, Mark SubbaRao, W. N. Brandt, James E. Gunn, Brian Yanny, Neta A. Bahcall, J. C. Barentine, Michael R. Blanton, William N. Boroski, Howard J. Brewington, J. Brinkmann, Robert BrunnerIstván Csabai, Mamoru Doi, Daniel J. Eisenstein, Joshua A. Frieman, Masataka Fukugita, Jim Gray, Michael Harvanek, Timothy M. Heckman, Željko Ivezić, Stephen Kent, S. J. Kleinman, Gillian R. Knapp, Richard G. Kron, Jurek Krzesinski, Daniel C. Long, Jon Loveday, Robert H. Lupton, Bruce Margon, Jeffrey A. Munn, Eric H. Neilsen, Heidi Jo Newberg, Peter R. Newman, R. C. Nichol, Atsuko Nitta, Jeffrey R. Pier, Constance M. Rockosi, David H. Saxe, David J. Schlegel, Stephanie A. Snedden, Alexander S. Szalay, Aniruddha R. Thakar, Alan Uomoto, Wolfgang Voges, Donald G. York

    Research output: Contribution to journalArticlepeer-review


    We present the third edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 46,420 objects in the SDSS Third Data Release that have luminosities larger than M i = -22 (in a cosmology with H 0 = 70 km s -1 Mpc -1, Ω M = 0.3, and Ω Λ = 0.7), have at least one emission line with FWHM larger than 1000 km s -1 or are unambiguously broad absorption line quasars, are fainter than i = 15.0, and have highly reliable redshifts. The area covered by the catalog is ≈4188 deg 2. The quasar redshifts range from 0.08 to 5.41, with a median value of 1.47; the high-redshift sample includes 520 quasars at redshifts greater than 4, of which 17 are at redshifts greater than 5. For each object the catalog presents positions accurate to better than 0″.2 rms per coordinate, five-band (ugriz) CCD-based photometry with typical accuracy of 0.03 mag, and information on the morphology and selection method. The catalog also contains radio, near-infrared, and X-ray emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra cover the wavelength region 3800-9200 Å at a spectral resolution of ≃2000; the spectra can be retrieved from the public database using the information provided in the catalog. A total of 44,221 objects in the catalog were discovered by the SDSS; 28,400 of the SDSS discoveries are reported here for the first time.

    Original languageEnglish (US)
    Pages (from-to)367-380
    Number of pages14
    JournalAstronomical Journal
    Issue number2
    StatePublished - Aug 2005


    • Catalogs
    • Quasars: General
    • Surveys

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science


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