@article{efc98ebfe99248ccbeccb51b58b9f6e0,
title = "The Sloan Digital Sky Survey Quasar catalog: fourteenth data release",
abstract = "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 Mi [z = 2] < −20.5 (in a Λ CDM cosmology with H0 = 70 km s−1 Mpc−1, ΩM =0.3, and ΩΛ = 0.7), and either display at least one emission line with a full width at half maximum larger than 500 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 9376 deg2 (2044 deg2 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. Redshifts are provided for the Mg II emission line. The catalog identifies 21 877 broad absorption line quasars and lists 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. 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, covering the wavelength region 3610–10 140 Å at a spectral resolution in the range 1300 < R < 2500, can be retrieved from the SDSS Science Archiver Server.",
keywords = "Catalogs, Surveys, Quasars: general",
author = "Isabelle P{\^a}ris and Patrick Petitjean and Eric Aubourg and Myers, {Adam D.} and Alina Streblyanska and Lyke, {Brad W.} and Anderson, {Scott F.} and {\'E}ric Armengaud and Julian Bautista and Blanton, {Michael R.} and Michael Blomqvist and Jonathan Brinkmann and Brownstein, {Joel R.} and Brandt, {William Nielsen} and {\'E}tienne Burtin and Kyle Dawson and {de la Torre}, Sylvain and A. Georgakakis and H. Gil-Marin and Green, {P. J.} and Hall, {P. B.} and Kneib, {J. -P.} and LaMassa, {S. M.} and Goff, {J. -M. Le} and Chelsea MacLeod and V. Mariappan and McGreer, {I. D.} and A. Merloni and P. Noterdaeme and Delabrouille, {N. Palanque} and Percival, {W. J.} and Ross, {A. J.} and G. Rossi and Schneider, {D. P.} and Seo, {H. -J.} and R. Tojeiro and Weaver, {B. A.} and Weijmans, {A. -M.} and C. Y{\`e}che and P. Zarrouk and Gong-Bo Zhao",
year = "2018",
month = may,
day = "30",
doi = "10.1051/0004-6361/201732445",
language = "English",
volume = "613",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "EDP SCIENCES S A",
}