Isabelle Pâris, Patrick Petitjean, Eric Aubourg, Stephen Bailey, Nicholas P. Ross, Adam D. Myers, Michael A. Strauss, Scott F. Anderson, Eduard Arnau, Julian Bautista, Dmitry Bizyaev, Adam S. Bolton, Jo Bovy, William N. Brandt, Howard Brewington, Joel R. Brownstein, Nicolas Busca, Daniel Capellupo, William Carithers, Rupert A. C. Croft, Kyle Dawson, Timothée Delubac, Garrett Ebelke, Daniel J. Eisenstein, Philip Engelke, Xiaohui Fan, Nur Filiz Ak, Hayley Finley, Andreu Font-Ribera, Jian Ge, Robert R. Gibson, Patrick B. Hall, Fred Hamann, Joseph F. Hennawi, Shirley Ho, David W. Hogg, Zeljko Ivezic, Linhua Jiang, Amy E. Kimball, David Kirkby, Jessica A. Kirkpatrick, Khee-Gan Lee, Jean-Marc Le Goff, Britt Lundgren, Chelsea L. MacLeod, Elena Malanushenko, Viktor Malanushenko, Claudia Maraston, Ian D. McGreer, Richard G. McMahon, Jordi Miralda-Escudé, Demitri Muna, Pasquier Noterdaeme, Daniel Oravetz, Nathalie Palanque-Delabrouille, Kaike Pan, Ismaël Perez-Fournon, Matthew M. Pieri, Gordon T. Richards, Emmanuel Rollinde, Erin S. Sheldon, David J. Schlegel, Donald P. Schneider, Anze Slosar, Alaina Shelden, Yue Shen, Audrey Simmons, Stephanie Snedden, Nao Suzuki, Jeremy Tinker, Matteo Viel, Benjamin A. Weaver, David H. Weinberg, Martin White, W. Michael Wood-Vasey, Christophe Yèche
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]<-20.5 (in a $\Lambda$CDM cosmology with H0 = 70 km/s/Mpc, $\Omega_{\rm M}$ = 0.3, and $\Omega_{\Lambda}$ = 0.7) and either display at least one emission line with full width at half maximum (FWHM) larger than 500 km/s or, if not, have interesting/complex absorption features. It includes as well, known quasars (mostly from SDSS-I and II) that were reobserved by BOSS. This catalog contains 87,822 quasars (78,086 are new discoveries) detected over 3,275 deg$^{2}$ with robust identification and redshift measured by a combination of principal component eigenspectra newly derived from a training set of 8,632 spectra from SDSS-DR7. The number of quasars with $z>2.15$ (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 (CIV, CIII], MgII). The catalog identifies 7,533 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.
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http://arxiv.org/abs/1210.5166
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