The Sloan Digital Sky Survey Quasar Catalog: twelfth data release

Abstract

We present the Data Release 12 Quasar catalog (DR12Q) from the Baryon Oscillation Spectroscopic Survey (BOSS) of the SDSS-III. This catalog includes all SDSS-III/BOSS objects that were spectroscopically targeted as quasar candidates during the full survey and that are confirmed as quasars via visual inspection of the spectra, have luminosities Mi[z=2]<-20.5 (in a LCDM cosmology with H_0 = 70 km/s/Mpc, Omega_M = 0.3, and Omega _L=0.7), and either display at least one emission line with a full width at half maximum (FWHM)larger than 500 km/s or, if not, have interesting/complex absorption features. The catalog also includes previously known quasars (mostly from SDSS-I and II) that were reobserved by BOSS. The catalog contains 297,301 quasars detected over 9,376 square degrees with robust identification and redshift measured by a combination of principal component eigenspectra. The number of quasars with z>2.15 is about an order of magnitude greater than the number of z>2.15 quasars known prior to BOSS. Redshifts and FWHMs are provided for the strongest emission lines (CIV, CIII], MgII). The catalog identifies 29,580 broad absorption line quasars and lists their characteristics. For each object, the catalog presents five-band (u, g, r, i, z) CCD-based photometry together with some information on the optical morphology and the selection criteria. When available, the catalog also provides information on the optical variability of quasars using SDSS and PTF multi-epoch photometry. 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 3,600-10,500A at a spectral resolution in the range 1,300<R<2,500, can be retrieved from the SDSS Catalog Archive Server.

Accepted for publication in A&A. The catalog is publicly available here: http://www.sdss.org/dr12/algorithms/boss-dr12-quasar-catalog

References in corpus (12)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• Baryon Acoustic Oscillations in the Ly-α forest of BOSS quasars
• The XMM-Newton Serendipitous Survey. V. The Second XMM-Newton Serendipitous Source Catalogue
• The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
• The Discovery of the First "Changing Look" Quasar: New Insights into the Physics & Phenomenology of AGN
• A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5
• Think Outside the Color Box: Probabilistic Target Selection and the SDSS-XDQSO Quasar Targeting Catalog
• Mean Spectral Energy Distributions and Bolometric Corrections for Luminous Quasars
• Dark energy and curvature from a future baryonic acoustic oscillation survey using the Lyman-alpha forest
• Luminosity Function from dedicated SDSS-III and MMT data of quasars in 0.7<z<4.0 selected with a new approach

Cited by in corpus (109)

• Active Galactic Nuclei: what's in a name?
• The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release
• The XMM-Newton serendipitous survey IX. The fourth XMM-Newton serendipitous source catalogue
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-$\alpha$ forests
• Physical properties of 15 quasars at $z\gtrsim 6.5$
• Baryon acoustic oscillations from the complete SDSS-III Ly$\alpha$-quasar cross-correlation function at $z=2.4$
• MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-Loud Blazars
• The WISE AGN Catalog
• A Significantly Neutral Intergalactic Medium Around the Luminous z=7 Quasar J0252-0503
• Understanding extreme quasar optical variability with CRTS: I. Major AGN flares
• Clustering of quasars in SDSS-IV eBOSS : study of potential systematics and bias determination
• Extremely Red Quasars in BOSS
• Inspiraling Halo Accretion Mapped in Lyman-$\alpha$ Emission around a $z\sim 3$ Quasar
• Improving Damped Random Walk parameters for SDSS Stripe 82 Quasars with Pan-STARRS1
• New Constraints on Quasar Evolution: Broad Line Velocity Shifts over $1.5\lesssim z\lesssim 7.5$
• AGN Populations in Large Volume X-ray Surveys: Photometric Redshifts and Population Types found in the Stripe 82X Survey
• The SDSS-DR12 large-scale cross-correlation of Damped Lyman Alpha Systems with the Lyman Alpha Forest
• Virial Black Hole Mass Estimates for 280,000 AGNs from the SDSS Broad-Band Photometry and Single Epoch Spectra
• Does the X-ray outflow quasar PDS 456 have a UV outflow at 0.3c?
• Quasars as standard candles II: The non linear relation between UV and X-ray emission at high redshifts
• Accretion mode versus radio morphology in the LOFAR Deep Fields
• Results from EDGES High-Band: III. New Constraints on Parameters of the Early Universe
• The $L_{\mathrm{x}}$-$L_{\mathrm{uv}}$-$L_{\mathrm{radio}}$ relation and corona-disk-jet connection in optically selected radio-loud quasars
• The correlations between optical/UV broad lines and X-ray emission for a large sample of quasars
• Unsupervised star, galaxy, qso classification: Application of HDBSCAN
• Variation of ionizing continuum: the main driver of Broad Absorption Line Variability
• A long term study of AGN X-ray variability. Structure function analysis on a ROSAT-XMM quasar sample
• Characterizing the abundance, properties, and kinematics of the cool circumgalactic medium of galaxies in absorption with SDSS DR16
• Mg II absorbers: metallicity evolution and cloud morphology
• Cataloging the radio-sky with unsupervised machine learning: a new approach for the SKA era
• Quasi-periodic behaviour in the optical and γ-ray light curves of blazars 3C 66A and B2 1633+38
• SDSS-IV eBOSS Spectroscopy of X-ray and WISE AGN in Stripe 82X: Overview of the Demographics of X-ray and Mid-Infrared Selected Active Galactic Nuclei
• The properties of broad absorption line outflows based on a large sample of quasars
• Unveiling the rarest morphologies of the LOFAR Two-metre Sky Survey radio source population with self-organised maps
• Efficient Selection of Quasar Candidates Based on Optical and Infrared Photometric Data Using Machine Learning
• Model-independent constraints on cosmic curvature: implication from updated Hubble diagram of high-redshift standard candles
• Time-delay measurement of MgII broad line response for the highly-accreting quasar HE 0413-4031: Implications for the MgII-based radius-luminosity relation
• On the discovery of stars, quasars, and galaxies in the Southern Hemisphere with S-PLUS DR2
• The fall of the Northern Unicorn: Tangential motions in the Galactic Anti-centre with SDSS and Gaia
• The Extremely Luminous Quasar Survey (ELQS) in the SDSS footprint I.: Infrared Based Candidate Selection
• Classification of Broad Absorption Line Quasars with a Convolutional Neural Network
• The Extremely Luminous Quasar Survey in the Sloan Digital Sky Survey footprint. III. The South Galactic Cap Sample and the Quasar Luminosity Function at Cosmic Noon
• Blazars at the Cosmic Dawn
• A new bright z=6.82 quasar discovered with VISTA: VHS J0411-0907
• Baryon acoustic oscillations signature in the three-point angular correlation function from the SDSS-DR12 quasar survey
• Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs
• Quasar Photometric Redshifts and Candidate Selection: A New Algorithm Based on Optical and Mid-Infrared Photometric Data
• Correlation between the variation of the ionizing continuum and broad absorption lines
• A ring accelerator? Unusual jet dynamics in the IceCube candidate PKS 1502+106
• SDSS-IV/SPIDERS: A Catalogue of X-Ray Selected AGN Properties; Spectral Properties and Black Hole Mass Estimates for SPIDERS SDSS DR14 Type 1 AGN
• Intensity Mapping in the Presence of Foregrounds and Correlated Continuum Emission
• The Time-Domain Spectroscopic Survey: Target Selection for Repeat Spectroscopy
• Fe III emission in quasars: evidence for a dense turbulent medium
• Magnetic-reconnection-heated corona in active galactic nuclei: refined disc-corona model and application to broad-band radiation
• A Method to Measure the Unbiased Decorrelation Timescale of the AGN Variable Signal from Structure Functions
• Placing High-Redshift Quasars in Perspective: a Catalog of Spectroscopic Properties from the Gemini Near Infrared Spectrograph -- Distant Quasar Survey
• Variability of Low-ionization Broad Absorption Line Quasars Based on Multi-epoch Spectra from The Sloan Digital Sky Survey
• X-ray properties of dust-obscured galaxies with broad optical/UV emission lines
• First Detection of Cosmic Microwave Background Lensing and Lyman-α Forest Bispectrum
• The Blueshift Of Civ Broad Emission Line In Qsos
• Ionization driven intrinsic absorption line variability of BAL quasars in the Stripe 82 region
• The Hunt for Red Quasars: Luminous Obscured Black Hole Growth Unveiled in the Stripe 82 X-ray Survey
• Quasar emission lines as probes of orientation: implications for disc wind geometries and unification
• Dual-high-frequency VLBI study of blazar-jet brightness-temperature gradients and collimation profiles
• Relation between the variations in the MgII $\lambda 2798$ emission-line and the 3000 Å continuum
• ELDAR, a new method to identify AGN in multi-filter surveys: the ALHAMBRA test-case
• Slowing down of cosmic growth of supermassive black holes: Theoretical prediction of the Eddington ratio distribution
• Appearance vs Disappearance of broad absorption line troughs in quasars
• Mg II and Fe II fluxes of luminous quasars at z ~ 2.7 and evaluation of the Baldwin effect in the flux-to-abundance conversion method for quasars
• The Lyman-$\alpha$ power spectrum - CMB lensing convergence cross-correlation
• Solving the conundrum of intervening strong MgII absorbers towards GRBs and quasars
• Identifying MgII Narrow Absorption Lines with Deep Learning
• A catalog of quasar properties from the Baryon Oscillation Spectroscopic Survey
• Collective properties of quasar narrow associated absorption lines
• Characterizing the Circumgalactic Medium of Quasars at z $\sim$ 2.2 through H$\alpha$ and Ly$\alpha$ Emission
• Far-infrared emission in luminous quasars accompanied by nuclear outflows
• Spatially Resolved Patchy Lyman-$\alpha$ Emission Within the Central Kiloparsec of a Strongly Lensed Quasar Host Galaxy at z = 2.8
• A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed by High-z Radio Galaxies at z~4
• The miniJPAS survey quasar selection II: Machine learning classification with photometric measurements and uncertainties
• The miniJPAS survey quasar selection III: Classification with artificial neural networks and hybridisation
• A Catalog of High-Velocity CIV Mini-BALs in the VLT-UVES and Keck-HIRES Archives
• Spatially separated continuum sources revealed by microlensing in the gravitationally lensed broad absorption line quasar SDSSJ081830.46+060138.0
• Time variability of ultra-fast BAL outflows using SALT: C IV equivalent width analysis
• Searching for Super-Eddington Quasars using a Photon Trapping Accretion Disc Model
• Constraining the Halo Mass of Damped Ly$\alpha$ Absorption Systems (DLAs) at $z=2-3.5$ using the Quasar-CMB Lensing Cross-correlation
• Chemical enrichment and host galaxies of extremely-strong intervening DLAs towards quasars
• A New Multi-Wavelength Census of Blazars
• Quasi-stellar objects and galaxy mass density profiles derived using the submillimetre galaxies magnification bias
• Identification confusion and blending concealment in the SDSS-DR16 Quasar catalogues -- 40 new quasars and 82 false quasars identified
• Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z ~ 4
• The Circumgalactic Medium of Submillimeter Galaxies. II. Unobscured QSOs within Dusty Starbursts and QSO Sightlines with Impact Parameters below 100 Kiloparsec
• Discovery of Metastable He I* $\lambda$10830 Mini-broad Absorption Lines and Very Narrow Paschen $\alpha$ Emission Lines in the ULIRG Quasar IRAS F11119+3257
• Multiwavelength analysis and the C IV λ1549 Å emission line behavior from 2008 to 2020 of the FSRQ B2 1633+382
• Evaluating and Improving the Redshifts of z>2.2 Quasars
• Overdensity of galaxies in the environment of quasar pairs
• Determination of astrophysical parameters of quasars within the Gaia mission
• Discovery of a Low-Redshift Damped Ly$\alpha$ System in a Foreground Extended Disk Using a Starburst Galaxy Background Illuminator
• An Optically Faint Quasar Survey at z~5 in the CFHTLS Wide Field: Estimates of the Black Hole Masses and Eddington Ratios
• High-$z$ Universe probed via Lensing by QSOs (HULQ) I. Number Estimates of QSO-QSO and QSO-Galaxy Lenses
• The detections of inflowing gas from narrow absorption lines at the parsec scale
• Extreme High-velocity Outflows from High-redshift BOSS Quasars
• The MEXSAS2 Sample and the Ensemble X-ray Variability of Quasars
• Circumgalactic Ly$\alpha$ Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager
• Probing the rapid formation of black holes and their galaxy hosts in QSOs
• Following the crumbs: Statistical effects of Ram Pressure in Galaxies
• Automated Measurement of Quasar Redshift with a Gaussian Process
• Spectral Signatures of Quasar Ages at z~3
• Far-UV Fe Emission as Proxy of Eddington Ratios
• High-$z$ Universe probed via Lensing by QSOs (HULQ) II. Deep GMOS spectroscopy of a QSO lens candidate