The Sloan Digital Sky Survey Quasar catalog : fourteenth data release
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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.
Pâris , I , Petitjean , P , Aubourg , E , Myers , A D , Streblyanska , A , Lyke , B W , Anderson , S F , Armengaud , É , Bautista , J , Blanton , M R , Blomqvist , M , Brinkmann , J , Brownstein , J R , Brandt , W N , Burtin , É , Dawson , K , de la Torre , S , Georgakakis , A , Gil-Marin , H , Green , P J , Hall , P B , Kneib , J -P , LaMassa , S M , Goff , J -M L , MacLeod , C , Mariappan , V , McGreer , I D , Merloni , A , Noterdaeme , P , Delabrouille , N P , Percival , W J , Ross , A J , Rossi , G , Schneider , D P , Seo , H -J , Tojeiro , R , Weaver , B A , Weijmans , A -M , Yèche , C , Zarrouk , P & Zhao , G-B 2018 , ' The Sloan Digital Sky Survey Quasar catalog : fourteenth data release ' , Astronomy & Astrophysics , vol. 613 , A51 . https://doi.org/10.1051/0004-6361/201732445
Astronomy & Astrophysics
© ESO 2018. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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