The Sloan Digital Sky Survey quasar catalog: ninth data release

We present the Data Release 9 Quasar (DR9Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog includes all BOSS objects that were targeted as quasar candidates during the survey, are spectrocopically confirmed as quasars via visual inspection, have luminosities Mi[z = 2] 2.15 (61 931) is ~2.8 times larger than the number of z > 2.15 quasars previously known. Redshifts and FWHMs are provided for the strongest emission lines (C iv, C iii], Mg ii). The catalog identifies 7533 broad absorption line quasars and gives their characteristics. For each object the catalog presents five-band (u, g, r, i, z) CCD-based photometry with typical accuracy of 0.03 mag, and information on the morphology and selection method. The catalog also contains X-ray, ultraviolet, near-infrared, and radio emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra cover the wavelength region 3600-10 500 Å at a spectral resolution in the range 1300 < R < 2500; the spectra can be retrieved from the SDSS Catalog Archive Server. We also provide a supplemental list of an additional 949 quasars that have been identified, among galaxy targets of the BOSS or among quasar targets after DR9 was frozen. Catalog is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/548/A66

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Source ISSN: 0004-6361
Author Pâris, I., Petitjean, P., Aubourg, É., Bailey, S., Ross, N. P., Myers, A. D., Strauss, M. A., Anderson, S. F., Arnau, E., Bautista, J.E., Bizyaev, D., Bolton, A. S., Bovy, J., Brandt, W. N., Brewington, H., Browstein, J. R., Busca, N.G., Capellupo, D., Carithers, W., Croft, R. A. C., Dawson, K., Delubac, T., Ebelke, G., Eisenstein, D. J., Engelke, P., Fan, X., Filiz Ak, N., Finley, H., Font-Ribera, A., Ge, J., Gibson, R. R., Hall, P. B., Hamann, F., Hennawi, J. F., Ho, S., Hogg, D. W., Ivezić, Ž., Jiang, Liang, Kimball, A. E., Kirkby, D., Kirkpatrick, J. A., Lee, K.-G., Le Goff, J.-M., Lundgren, B., Macleod, C. L., Malanushenko, E., Malanushenko, V., Maraston, C., Mcgreer, I. D., Mcmahon, R. G., Miralda-Escudé, J., Muna, D., Noterdaeme, P., Oravetz, D., Palanque-Delabrouille, N., Pan, K., Perez-Fournon, I., Pieri, M. M., Richards, G. T., Rollinde, E., Sheldon, E. S., Schlegel, D. J., Schneider, D. P., Slosar, A., Shelden, A., Shen, Y., Simmons, A., Snedden, S., Suzuki, N., Tinker, J., Viel, M., Weaver, B. A., Weinberg, D. H., White, M., Wood-Vasey, W. M., Yèche, C.
Maintainer CCSD
Last Updated May 11, 2026, 02:36 (UTC)
Created May 11, 2026, 02:36 (UTC)
Identifier in2p3-00823676
Language en
contributor AstroParticule et Cosmologie (APC (UMR_7164)) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris ; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
creator Pâris, I.
date 2012-12-11T00:00:00
harvest_object_id b400b654-8036-4255-bfea-1b193f537b3b
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-02-07T00:00:00
relation info:eu-repo/semantics/altIdentifier/arxiv/1210.5166
set_spec type:ART