Title

The sloan digital sky survey quasar catalog: Fourteenth data release

Authors

Isabelle Pâris, Laboratoire d'Astrophysique de Marseille
Patrick Petitjean, Institut d’Astrophysique de Paris
Éric Aubourg, APC - AstroParticule et Cosmologie
Adam D. Myers, University of Wyoming
Alina Streblyanska, Instituto Astrofisico de Canarias
Brad W. Lyke, University of Wyoming
Scott F. Anderson, University of Washington, Seattle
Éric Armengaud, Institut de Recherche sur les Lois Fondamentales de l'Univers
Julian Bautista, The University of Utah
Michael R. Blanton, The Center for Cosmology and Particle Physics
Michael Blomqvist, Laboratoire d'Astrophysique de Marseille
Jonathan Brinkmann, Apache Point Observatory
Joel R. Brownstein, The University of Utah
William Nielsen Brandt, Eberly College of Science
Étienne Burtin, Institut de Recherche sur les Lois Fondamentales de l'Univers
Kyle Dawson, The University of Utah
Sylvain De La Torre, Laboratoire d'Astrophysique de Marseille
Antonis Georgakakis, Max Planck Institute for Extraterrestrial Physics
Héctor Gil-Marín, Sorbonne Universite
Paul J. Green, Harvard-Smithsonian Center for Astrophysics
Patrick B. Hall, York University
Jean Paul Kneib, Ecole Polytechnique Fédérale de Lausanne
Stephanie M. LaMassa, STScI
Jean Marc Le Goff, Institut de Recherche sur les Lois Fondamentales de l'Univers
Chelsea MacLeod, Harvard-Smithsonian Center for Astrophysics
Vivek Mariappan, The University of Utah
Ian D. McGreer, The University of Arizona
Andrea Merloni, Max Planck Institute for Extraterrestrial Physics
Pasquier Noterdaeme, Institut d’Astrophysique de Paris
Nathalie Palanque-Delabrouille, Institut de Recherche sur les Lois Fondamentales de l'Univers
Will J. Percival, University of Portsmouth
Hee Jong Seo, Ohio University

Document Type

Article

Publication Date

1-1-2018

Keywords

Catalogs, Quasars: general, Surveys

Abstract

© ESO 2018. 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 ACDM cosmology with H 0 = 70 km s -1 Mpc -1 , ΩM = 0.3, and Ω ∧ = 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 deg 2 (2044 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. 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.

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