3 years ago

# The Sloan Digital Sky Survey Quasar Catalog: Fourteenth Data Release.

J.-M. Le Goff, J. Bautista, M.R. Blanton, W.N. Brandt, C. Yèche, C. MacLeod, S.F. Anderson, H. Gil-Marin, A. Georgakakis, A. Merloni, J.-P. Kneib, J. Brinkmann, A.J. Ross, M. Blomqvist, E. Armengaud, W.J. Percival, A. Streblyanska, N. Palanque Delabrouille, V. Mariappan, D.P.Schneider, S.M. LaMassa, P. Zarrouk, B.A. Weaver, P.J. Green, E. Burtin, J.R. Brownstein, G.-B. Zhao, A.-M. Weijmans, I.D. McGreer, S. de la Torre, E. Aubourg, P. Noterdaeme, H.-J. Seo, K. Dawson, R. Tojeiro, P.B. Hall, I. Pâris, B.W. Lyke, G. Rossi, A.D. Myers, P. Petitjean

We present the Data Release 14 Quasar catalog (DR14Q) from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) of the Sloan Digital Sky Survey IV (SDSS-IV). This catalog includes all SDSS-IV/eBOSS objects that were spectroscopically targeted as quasar candidates and that are confirmed as quasars via a new automated procedure combined with a partial visual inspection of spectra, have luminosities $M_{\rm i} \left[ z=2 \right] < -20.5$ (in a $\Lambda$CDM cosmology with $H_0 = 70 \ {\rm km \ s^{-1} \ Mpc ^{-1}}$, $\Omega_{\rm M} = 0.3$, and $\Omega_{\rm \Lambda} = 0.7$), and either display at least one emission line with a full width at half maximum (FWHM) larger than $500 \ {\rm km \ s^{-1}}$ or, if not, have interesting/complex absorption features. The catalog also includes previously spectroscopically-confirmed quasars from SDSS-I, II and III. The catalog contains 526,356 quasars 144,046 are new discoveries since the beginning of SDSS-IV) detected over 9,376 deg$^2$ (2,044 deg$^2$ having new spectroscopic data available) with robust identification and redshift measured by a combination of principal component eigenspectra. The catalog is estimated to have about 0.5% contamination. The catalog identifies 21,877 broad absorption line quasars and lists their characteristics. For each object, the catalog presents SDSS five-band CCD-based photometry with typical accuracy of 0.03 mag. The catalog also contains X-ray, ultraviolet, near-infrared, and radio emission properties of the quasars, when available, from other large-area surveys.

Publisher URL: http://arxiv.org/abs/1712.05029

DOI: arXiv:1712.05029v2

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