skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release

Abstract

In this paper, we present the Data Release 12 Quasar catalog (DR12Q) from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey 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 M i [z = 2] < -20.5 (in a ΛCDM cosmology with H 0 = 70 km s -1 Mpc -1, Ω M = 0.3, and Ω Λ = 0.7), and either display at least one emission line with a full width at half maximum (FWHM) larger than 500 km s -1 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 (272 026 are new discoveries since the beginning of SDSS-III) detected over 9376 deg 2 with robust identification and redshift measured by a combination of principal component eigenspectra. The number of quasars with z > 2.15 (184 101, of which 167 742 are new discoveries) is about an order of magnitude greater than the number of z > 2.15 quasars knownmore » prior to BOSS. Redshifts and FWHMs are provided for the strongest emission lines (C iv, C iii], Mg ii). 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 with typical accuracy of 0.03 mag 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 Palomar Transient Factory 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 3600–10 500 Å at a spectral resolution in the range 1300 < R < 2500, can be retrieved from the SDSS Catalog Archive Server. Finally, we also provide a supplemental list of an additional 4841 quasars that have been identified serendipitously outside of the superset defined to derive the main quasar catalog.« less

Authors:
ORCiD logo; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF)
Contributing Org.:
SDSS-III Collaboration
OSTI Identifier:
1379664
Grant/Contract Number:  
AC02-05CH11231; AST-1516784; ANR-08-BLAN-0222; ANR-12-BS05-0015
Resource Type:
Accepted Manuscript
Journal Name:
Astronomy and Astrophysics
Additional Journal Information:
Journal Volume: 597; Journal ID: ISSN 0004-6361
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; catalogs; surveys; quasars

Citation Formats

Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P., Myers, Adam D., Aubourg, Éric, Streblyanska, Alina, Bailey, Stephen, Armengaud, Éric, Palanque-Delabrouille, Nathalie, Yèche, Christophe, Hamann, Fred, Strauss, Michael A., Albareti, Franco D., Bovy, Jo, Bizyaev, Dmitry, Niel Brandt, W., Brusa, Marcella, Buchner, Johannes, Comparat, Johan, Croft, Rupert A. C., Dwelly, Tom, Fan, Xiaohui, Font-Ribera, Andreu, Ge, Jian, Georgakakis, Antonis, Hall, Patrick B., Jiang, Linhua, Kinemuchi, Karen, Malanushenko, Elena, Malanushenko, Viktor, McMahon, Richard G., Menzel, Marie-Luise, Merloni, Andrea, Nandra, Kirpal, Noterdaeme, Pasquier, Oravetz, Daniel, Pan, Kaike, Pieri, Matthew M., Prada, Francisco, Salvato, Mara, Schlegel, David J., Schneider, Donald P., Simmons, Audrey, Viel, Matteo, Weinberg, David H., and Zhu, Liu. The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release. United States: N. p., 2017. Web. doi:10.1051/0004-6361/201527999.
Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P., Myers, Adam D., Aubourg, Éric, Streblyanska, Alina, Bailey, Stephen, Armengaud, Éric, Palanque-Delabrouille, Nathalie, Yèche, Christophe, Hamann, Fred, Strauss, Michael A., Albareti, Franco D., Bovy, Jo, Bizyaev, Dmitry, Niel Brandt, W., Brusa, Marcella, Buchner, Johannes, Comparat, Johan, Croft, Rupert A. C., Dwelly, Tom, Fan, Xiaohui, Font-Ribera, Andreu, Ge, Jian, Georgakakis, Antonis, Hall, Patrick B., Jiang, Linhua, Kinemuchi, Karen, Malanushenko, Elena, Malanushenko, Viktor, McMahon, Richard G., Menzel, Marie-Luise, Merloni, Andrea, Nandra, Kirpal, Noterdaeme, Pasquier, Oravetz, Daniel, Pan, Kaike, Pieri, Matthew M., Prada, Francisco, Salvato, Mara, Schlegel, David J., Schneider, Donald P., Simmons, Audrey, Viel, Matteo, Weinberg, David H., & Zhu, Liu. The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release. United States. doi:10.1051/0004-6361/201527999.
Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P., Myers, Adam D., Aubourg, Éric, Streblyanska, Alina, Bailey, Stephen, Armengaud, Éric, Palanque-Delabrouille, Nathalie, Yèche, Christophe, Hamann, Fred, Strauss, Michael A., Albareti, Franco D., Bovy, Jo, Bizyaev, Dmitry, Niel Brandt, W., Brusa, Marcella, Buchner, Johannes, Comparat, Johan, Croft, Rupert A. C., Dwelly, Tom, Fan, Xiaohui, Font-Ribera, Andreu, Ge, Jian, Georgakakis, Antonis, Hall, Patrick B., Jiang, Linhua, Kinemuchi, Karen, Malanushenko, Elena, Malanushenko, Viktor, McMahon, Richard G., Menzel, Marie-Luise, Merloni, Andrea, Nandra, Kirpal, Noterdaeme, Pasquier, Oravetz, Daniel, Pan, Kaike, Pieri, Matthew M., Prada, Francisco, Salvato, Mara, Schlegel, David J., Schneider, Donald P., Simmons, Audrey, Viel, Matteo, Weinberg, David H., and Zhu, Liu. Thu . "The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release". United States. doi:10.1051/0004-6361/201527999. https://www.osti.gov/servlets/purl/1379664.
@article{osti_1379664,
title = {The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release},
author = {Pâris, Isabelle and Petitjean, Patrick and Ross, Nicholas P. and Myers, Adam D. and Aubourg, Éric and Streblyanska, Alina and Bailey, Stephen and Armengaud, Éric and Palanque-Delabrouille, Nathalie and Yèche, Christophe and Hamann, Fred and Strauss, Michael A. and Albareti, Franco D. and Bovy, Jo and Bizyaev, Dmitry and Niel Brandt, W. and Brusa, Marcella and Buchner, Johannes and Comparat, Johan and Croft, Rupert A. C. and Dwelly, Tom and Fan, Xiaohui and Font-Ribera, Andreu and Ge, Jian and Georgakakis, Antonis and Hall, Patrick B. and Jiang, Linhua and Kinemuchi, Karen and Malanushenko, Elena and Malanushenko, Viktor and McMahon, Richard G. and Menzel, Marie-Luise and Merloni, Andrea and Nandra, Kirpal and Noterdaeme, Pasquier and Oravetz, Daniel and Pan, Kaike and Pieri, Matthew M. and Prada, Francisco and Salvato, Mara and Schlegel, David J. and Schneider, Donald P. and Simmons, Audrey and Viel, Matteo and Weinberg, David H. and Zhu, Liu},
abstractNote = {In this paper, we present the Data Release 12 Quasar catalog (DR12Q) from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey 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 ΛCDM 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 (FWHM) larger than 500 km s-1 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 (272 026 are new discoveries since the beginning of SDSS-III) detected over 9376 deg2 with robust identification and redshift measured by a combination of principal component eigenspectra. The number of quasars with z > 2.15 (184 101, of which 167 742 are new discoveries) 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 (C iv, C iii], Mg ii). 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 with typical accuracy of 0.03 mag 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 Palomar Transient Factory 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 3600–10 500 Å at a spectral resolution in the range 1300 < R < 2500, can be retrieved from the SDSS Catalog Archive Server. Finally, we also provide a supplemental list of an additional 4841 quasars that have been identified serendipitously outside of the superset defined to derive the main quasar catalog.},
doi = {10.1051/0004-6361/201527999},
journal = {Astronomy and Astrophysics},
number = ,
volume = 597,
place = {United States},
year = {2017},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 125 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

The Tenth data Release of the Sloan Digital sky Survey: First Spectroscopic data from the Sdss-Iii Apache Point Observatory Galactic Evolution Experiment
journal, March 2014

  • Ahn, Christopher P.; Alexandroff, Rachael; Allende Prieto, Carlos
  • The Astrophysical Journal Supplement Series, Vol. 211, Issue 2
  • DOI: 10.1088/0067-0049/211/2/17

The Baryon Oscillation Spectroscopic Survey of Sdss-Iii
journal, December 2012

  • Dawson, Kyle S.; Schlegel, David J.; Ahn, Christopher P.
  • The Astronomical Journal, Vol. 145, Issue 1
  • DOI: 10.1088/0004-6256/145/1/10

The Sloan Digital Sky Survey Photometric Camera
journal, December 1998

  • Gunn, J. E.; Carr, M.; Rockosi, C.
  • The Astronomical Journal, Vol. 116, Issue 6
  • DOI: 10.1086/300645

The FIRST Survey: Faint Images of the Radio Sky at Twenty Centimeters
journal, September 1995

  • Becker, Robert H.; White, Richard L.; Helfand, David J.
  • The Astrophysical Journal, Vol. 450
  • DOI: 10.1086/176166

Luminosity function from dedicated SDSS-III and MMT data of quasars in 0.7 < z < 4.0 selected with a new approach
journal, February 2013


The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Overview and Early data
journal, February 2016

  • Dawson, Kyle S.; Kneib, Jean-Paul; Percival, Will J.
  • The Astronomical Journal, Vol. 151, Issue 2
  • DOI: 10.3847/0004-6256/151/2/44

A Simple Likelihood Method for Quasar Target Selection
journal, November 2011

  • Kirkpatrick, Jessica A.; Schlegel, David J.; Ross, Nicholas P.
  • The Astrophysical Journal, Vol. 743, Issue 2
  • DOI: 10.1088/0004-637X/743/2/125

Mean Spectral Energy Distributions and Bolometric Corrections for Luminous Quasars
journal, April 2013

  • Krawczyk, Coleman M.; Richards, Gordon T.; Mehta, Sajjan S.
  • The Astrophysical Journal Supplement Series, Vol. 206, Issue 1
  • DOI: 10.1088/0067-0049/206/1/4

First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters
journal, September 2003

  • Spergel, D. N.; Verde, L.; Peiris, H. V.
  • The Astrophysical Journal Supplement Series, Vol. 148, Issue 1
  • DOI: 10.1086/377226

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Releases 10 and 11 Galaxy samples
journal, April 2014

  • Anderson, Lauren; Aubourg, Éric; Bailey, Stephen
  • Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 1
  • DOI: 10.1093/mnras/stu523

The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection
journal, December 2015

  • Myers, Adam D.; Palanque-Delabrouille, Nathalie; Prakash, Abhishek
  • The Astrophysical Journal Supplement Series, Vol. 221, Issue 2
  • DOI: 10.1088/0067-0049/221/2/27

Secondary standard stars for absolute spectrophotometry
journal, March 1983

  • Oke, J. B.; Gunn, J. E.
  • The Astrophysical Journal, Vol. 266
  • DOI: 10.1086/160817

Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds
journal, June 1998

  • Schlegel, David J.; Finkbeiner, Douglas P.; Davis, Marc
  • The Astrophysical Journal, Vol. 500, Issue 2
  • DOI: 10.1086/305772

Comparisons of the emission-line and continuum properties of broad absorption line and normal quasi-stellar objects
journal, May 1991

  • Weymann, Ray J.; Morris, Simon L.; Foltz, Craig B.
  • The Astrophysical Journal, Vol. 373
  • DOI: 10.1086/170020

Exploring the Optical Transient Sky with the Palomar Transient Factory
journal, December 2009

  • Rau, Arne; Kulkarni, Shrinivas R.; Law, Nicholas M.
  • Publications of the Astronomical Society of the Pacific, Vol. 121, Issue 886
  • DOI: 10.1086/605911

Unusual Broad Absorption Line Quasars from the Sloan Digital Sky Survey
journal, August 2002

  • Hall, Patrick B.; Anderson, Scott F.; Strauss, Michael A.
  • The Astrophysical Journal Supplement Series, Vol. 141, Issue 2
  • DOI: 10.1086/340546

UNUSUAL BROAD-LINE Mg II EMITTERS AMONG LUMINOUS GALAXIES IN THE BARYON OSCILLATION SPECTROSCOPIC SURVEY
journal, January 2014

  • Roig, Benjamin; Blanton, Michael R.; Ross, Nicholas P.
  • The Astrophysical Journal, Vol. 781, Issue 2
  • DOI: 10.1088/0004-637X/781/2/72

The evolution of optically selected QSOs – II
journal, December 1988

  • Boyle, B. J.; Shanks, T.; Peterson, B. A.
  • Monthly Notices of the Royal Astronomical Society, Vol. 235, Issue 3
  • DOI: 10.1093/mnras/235.3.935

An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data
journal, February 2008

  • Padmanabhan, Nikhil; Schlegel, David J.; Finkbeiner, Douglas P.
  • The Astrophysical Journal, Vol. 674, Issue 2
  • DOI: 10.1086/524677

Efficient Photometric Selection of Quasars from the Sloan Digital Sky Survey: 100,000 z < 3 Quasars from Data Release One
journal, December 2004

  • Richards, Gordon T.; Nichol, Robert C.; Gray, Alexander G.
  • The Astrophysical Journal Supplement Series, Vol. 155, Issue 2
  • DOI: 10.1086/425356

The Multi-Object, Fiber-Fed Spectrographs for the Sloan Digital sky Survey and the Baryon Oscillation Spectroscopic Survey
journal, July 2013


The clustering of intermediate-redshift quasars as measured by the Baryon Oscillation Spectroscopic Survey: Quasar clustering
journal, June 2012


Spectral Classification and Redshift Measurement for the Sdss-Iii Baryon Oscillation Spectroscopic Survey
journal, October 2012


The Sloan Digital Sky Survey Photometric System
journal, April 1996

  • Fukugita, M.; Ichikawa, T.; Gunn, J. E.
  • The Astronomical Journal, Vol. 111
  • DOI: 10.1086/117915

The Discovery of the First “Changing Look” Quasar: new Insights into the Physics and Phenomenology of Active Galactic Nuclei
journal, February 2015

  • LaMassa, Stephanie M.; Cales, Sabrina; Moran, Edward C.
  • The Astrophysical Journal, Vol. 800, Issue 2
  • DOI: 10.1088/0004-637X/800/2/144

The Eleventh and Twelfth data Releases of the Sloan Digital sky Survey: Final data from Sdss-Iii
journal, July 2015

  • Alam, Shadab; Albareti, Franco D.; Prieto, Carlos Allende
  • The Astrophysical Journal Supplement Series, Vol. 219, Issue 1
  • DOI: 10.1088/0067-0049/219/1/12

The Sloan Digital sky Survey Reverberation Mapping Project: Velocity Shifts of Quasar Emission Lines
journal, October 2016


The Palomar Transient Factory: System Overview, Performance, and First Results
journal, December 2009

  • Law, Nicholas M.; Kulkarni, Shrinivas R.; Dekany, Richard G.
  • Publications of the Astronomical Society of the Pacific, Vol. 121, Issue 886
  • DOI: 10.1086/648598

Astrometric Calibration of the Sloan Digital Sky Survey
journal, March 2003

  • Pier, Jeffrey R.; Munn, Jeffrey A.; Hindsley, Robert B.
  • The Astronomical Journal, Vol. 125, Issue 3
  • DOI: 10.1086/346138

Quasar-Lyman α forest cross-correlation from BOSS DR11: Baryon Acoustic Oscillations
journal, May 2014

  • Font-Ribera, Andreu; Kirkby, David; Busca, Nicolas
  • Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 05
  • DOI: 10.1088/1475-7516/2014/05/027

Variability selected high-redshift quasars on SDSS Stripe 82
journal, May 2011


The Sloan Digital Sky Survey monitor telescope pipeline
journal, November 2006

  • Tucker, D. L.; Kent, S.; Richmond, M. W.
  • Astronomische Nachrichten, Vol. 327, Issue 9
  • DOI: 10.1002/asna.200610655

Discovery and spectrophotometry of the quasars in the -40 deg zone of the CTIO Curtis Schmidt survey
journal, February 1980

  • Osmer, P. S.; Smith, M. G.
  • The Astrophysical Journal Supplement Series, Vol. 42
  • DOI: 10.1086/190653

The Sloan Digital Sky Survey quasar catalog: ninth data release
journal, November 2012


The Sixth Data Release of the Sloan Digital Sky Survey
journal, April 2008

  • Adelman‐McCarthy, Jennifer K.; Agüeros, Marcel A.; Allam, Sahar S.
  • The Astrophysical Journal Supplement Series, Vol. 175, Issue 2
  • DOI: 10.1086/524984

The Sloan Digital Sky Survey Quasar Catalog. IV. Fifth Data Release
journal, May 2007

  • Schneider, Donald P.; Hall, Patrick B.; Richards, Gordon T.
  • The Astronomical Journal, Vol. 134, Issue 1
  • DOI: 10.1086/518474

Quasar Classification Using Color and Variability
journal, September 2015

  • Peters, Christina M.; Richards, Gordon T.; Myers, Adam D.
  • The Astrophysical Journal, Vol. 811, Issue 2
  • DOI: 10.1088/0004-637X/811/2/95

The UKIRT Infrared Deep Sky Survey (UKIDSS)
journal, August 2007


The Sdss-Iii Baryon Oscillation Spectroscopic Survey: the Quasar Luminosity Function from data Release nine
journal, July 2013


The Sloan Digital Sky Survey quasar catalog: tenth data release
journal, March 2014


Quasar evolution derived from the Palomar bright quasar survey and other complete quasar surveys
journal, June 1983

  • Schmidt, M.; Green, R. F.
  • The Astrophysical Journal, Vol. 269
  • DOI: 10.1086/161048

The Sloan Digital Sky Survey: Technical Summary
journal, September 2000

  • York, Donald G.; Adelman, J.; Anderson, Jr., John E.
  • The Astronomical Journal, Vol. 120, Issue 3
  • DOI: 10.1086/301513

Constraint on the time variation of the fine-structure constant with the SDSS-III/BOSS DR12 quasar sample
journal, August 2015

  • Albareti, Franco D.; Comparat, Johan; Gutiérrez, Carlos M.
  • Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 4
  • DOI: 10.1093/mnras/stv1406

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample
journal, December 2012


A Photometricity and Extinction Monitor at the Apache Point Observatory
journal, October 2001

  • Hogg, David W.; Finkbeiner, Douglas P.; Schlegel, David J.
  • The Astronomical Journal, Vol. 122, Issue 4
  • DOI: 10.1086/323103

Clustering of intermediate redshift quasars using the final SDSS III-BOSS sample
journal, September 2015

  • Eftekharzadeh, Sarah; Myers, Adam D.; White, Martin
  • Monthly Notices of the Royal Astronomical Society, Vol. 453, Issue 3
  • DOI: 10.1093/mnras/stv1763

Photometric Redshifts and Quasar Probabilities from a Single, Data-Driven Generative Model
journal, March 2012


A strong redshift dependence of the broad absorption line quasar fraction: A redshift dependence of the BALQSO fraction
journal, December 2010


An accurate Galactic N[SUB]H[/SUB] map of the north ecliptic pole
journal, December 1994

  • Elvis, Martin; Lockman, Felix J.; Fassnacht, C.
  • The Astrophysical Journal Supplement Series, Vol. 95
  • DOI: 10.1086/192105

Sdss-Iii: Massive Spectroscopic Surveys of the Distant Universe, the Milky way, and Extra-Solar Planetary Systems
journal, August 2011

  • Eisenstein, Daniel J.; Weinberg, David H.; Agol, Eric
  • The Astronomical Journal, Vol. 142, Issue 3
  • DOI: 10.1088/0004-6256/142/3/72

The Two Micron All Sky Survey (2MASS)
journal, February 2006

  • Skrutskie, M. F.; Cutri, R. M.; Stiening, R.
  • The Astronomical Journal, Vol. 131, Issue 2
  • DOI: 10.1086/498708

The time Domain Spectroscopic Survey: Variable Selection and Anticipated Results
journal, June 2015


APM Z >=4 QSO Survey: Spectra and Intervening Absorption Systems
journal, September 1996

  • Storrie-Lombardi, L. J.; McMahon, R. G.; Irwin, M. J.
  • The Astrophysical Journal, Vol. 468
  • DOI: 10.1086/177676

Efficient Photometric Selection of Quasars from the Sloan Digital sky Survey. ii. ∼1, 000, 000 Quasars from data Release 6
journal, December 2008

  • Richards, Gordon T.; Myers, Adam D.; Gray, Alexander G.
  • The Astrophysical Journal Supplement Series, Vol. 180, Issue 1
  • DOI: 10.1088/0067-0049/180/1/67

Baryon acoustic oscillations in the Ly α forest of BOSS DR11 quasars
journal, January 2015


The Palomar Transient Factory photometric catalog 1.0
journal, August 2012

  • Ofek, E. O.; Laher, R.; Surace, J.
  • Publications of the Astronomical Society of the Pacific, Vol. 124, Issue 918
  • DOI: 10.1086/666978

The Sloan Digital Sky Survey Quasar Survey: Quasar Luminosity Function from Data Release 3
journal, June 2006

  • Richards, Gordon T.; Strauss, Michael A.; Fan, Xiaohui
  • The Astronomical Journal, Vol. 131, Issue 6
  • DOI: 10.1086/503559

A Catalog of Broad Absorption Line Quasars from the Sloan Digital Sky Survey Third Data Release
journal, July 2006

  • Trump, Jonathan R.; Hall, Patrick B.; Reichard, Timothy A.
  • The Astrophysical Journal Supplement Series, Vol. 165, Issue 1
  • DOI: 10.1086/503834

Measurement of baryon acoustic oscillations in the Lyman-α forest fluctuations in BOSS data release 9
journal, April 2013

  • Slosar, Anže; Iršič, Vid; Kirkby, David
  • Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 04
  • DOI: 10.1088/1475-7516/2013/04/026

The Eighth data Release of the Sloan Digital sky Survey: First data from Sdss-Iii
journal, March 2011

  • Aihara, Hiroaki; Allende Prieto, Carlos; An, Deokkeun
  • The Astrophysical Journal Supplement Series, Vol. 193, Issue 2
  • DOI: 10.1088/0067-0049/193/2/29

Selecting Quasars by Their Intrinsic Variability
journal, April 2010


The Galaxy Evolution Explorer : A Space Ultraviolet Survey Mission
journal, January 2005

  • Martin, D. Christopher; Fanson, James; Schiminovich, David
  • The Astrophysical Journal, Vol. 619, Issue 1
  • DOI: 10.1086/426387

The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Quasar Target Selection for data Release nine
journal, February 2012

  • Ross, Nicholas P.; Myers, Adam D.; Sheldon, Erin S.
  • The Astrophysical Journal Supplement Series, Vol. 199, Issue 1
  • DOI: 10.1088/0067-0049/199/1/3

Baryon acoustic oscillations in the Ly α forest of BOSS quasars
journal, April 2013


High-Redshift sdss Quasars with weak Emission Lines
journal, June 2009

  • Diamond-Stanic, Aleksandar M.; Fan, Xiaohui; Brandt, W. N.
  • The Astrophysical Journal, Vol. 699, Issue 1
  • DOI: 10.1088/0004-637X/699/1/782

Sloan Digital Sky Survey: Early Data Release
journal, January 2002

  • Stoughton, Chris; Lupton, Robert H.; Bernardi, Mariangela
  • The Astronomical Journal, Vol. 123, Issue 1
  • DOI: 10.1086/324741

Measuring Reddening with Sloan Digital sky Survey Stellar Spectra and Recalibrating sfd
journal, August 2011


Artificial neural networks for quasar selection and photometric redshift determination
journal, November 2010


The large bright quasar survey. 6: Quasar catalog and survey parameters
journal, April 1995

  • Hewett, Paul C.; Foltz, Craig B.; Chaffee, Frederic H.
  • The Astronomical Journal, Vol. 109
  • DOI: 10.1086/117380

The Bell Laboratories H I survey
journal, March 1992

  • Stark, Antony A.; Gammie, Charles F.; Wilson, Robert W.
  • The Astrophysical Journal Supplement Series, Vol. 79
  • DOI: 10.1086/191645

The 2dF QSO Redshift Survey - XII. The spectroscopic catalogue and luminosity function
journal, April 2004


The XMM-Newton serendipitous survey: V. The Second XMM-Newton serendipitous source catalogue
journal, October 2008


A tidal disruption flare in a massive galaxy? Implications for the fuelling mechanisms of nuclear black holes
journal, July 2015

  • Merloni, A.; Dwelly, T.; Salvato, M.
  • Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 1
  • DOI: 10.1093/mnras/stv1095

SDSS-III Baryon Oscillation Spectroscopic Survey Data Release 12: galaxy target selection and large-scale structure catalogues
journal, November 2015

  • Reid, Beth; Ho, Shirley; Padmanabhan, Nikhil
  • Monthly Notices of the Royal Astronomical Society, Vol. 455, Issue 2
  • DOI: 10.1093/mnras/stv2382

A Modified Magnitude System that Produces Well-Behaved Magnitudes, Colors, and Errors Even for Low Signal-to-Noise Ratio Measurements
journal, September 1999

  • Lupton, Robert H.; Gunn, James E.; Szalay, Alexander S.
  • The Astronomical Journal, Vol. 118, Issue 3
  • DOI: 10.1086/301004

3C 273 : A Star-Like Object with Large Red-Shift
journal, March 1963


PRELIMINARY RESULTS FROM NEOWISE: AN ENHANCEMENT TO THE WIDE-FIELD INFRARED SURVEY EXPLORER FOR SOLAR SYSTEM SCIENCE
journal, March 2011


The Sloan Digital sky Survey Quasar Catalog. v. Seventh data Release
journal, April 2010


A principal component analysis of quasar UV spectra at z  ~  3
journal, May 2011


The Wide-Field Infrared Survey Explorer (Wise): Mission Description and Initial On-Orbit Performance
journal, November 2010


The 2.5 m Telescope of the Sloan Digital Sky Survey
journal, April 2006

  • Gunn, James E.; Siegmund, Walter A.; Mannery, Edward J.
  • The Astronomical Journal, Vol. 131, Issue 4
  • DOI: 10.1086/500975

THINK OUTSIDE THE COLOR BOX: PROBABILISTIC TARGET SELECTION AND THE SDSS - XDQSO QUASAR TARGETING CATALOG
journal, February 2011


The Ninth data Release of the Sloan Digital sky Survey: First Spectroscopic data from the Sdss-Iii Baryon Oscillation Spectroscopic Survey
journal, November 2012

  • Ahn, Christopher P.; Alexandroff, Rachael; Allende Prieto, Carlos
  • The Astrophysical Journal Supplement Series, Vol. 203, Issue 2
  • DOI: 10.1088/0067-0049/203/2/21

A Catalog of Broad Absorption line Quasars in Sloan Digital sky Survey data Release 5
journal, February 2009


SDSS data management and photometric quality assessment
journal, October 2004

  • Ivezi?, ?.; Lupton, R. H.; Schlegel, D.
  • Astronomische Nachrichten, Vol. 325, Issue 6-8
  • DOI: 10.1002/asna.200410285

Dark energy and curvature from a future baryonic acoustic oscillation survey using the Lyman- α forest
journal, September 2007


    Works referencing / citing this record:

    LQAC-5: The fifth release of the Large Quasar Astrometric Catalogue: A compilation of 592 809 objects with 398 697
    journal, April 2019


    The X-ray/UV ratio in active galactic nuclei: dispersion and variability
    journal, November 2018


    C IV broad absorption line disappearance in a large SDSS QSO sample
    journal, August 2018


    Active galactic nuclei: what’s in a name?
    journal, August 2017

    • Padovani, P.; Alexander, D. M.; Assef, R. J.
    • The Astronomy and Astrophysics Review, Vol. 25, Issue 1
    • DOI: 10.1007/s00159-017-0102-9

    Identifying quasars with astrometric and mid-infrared methods from APOP and ALLWISE
    journal, October 2018


    Radio loudness along the quasar main sequence
    journal, September 2019


    Angular Baryon Acoustic Oscillation measure at z =2.225 from the SDSS quasar survey
    journal, April 2018

    • de Carvalho, E.; Bernui, A.; Carvalho, G. C.
    • Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04
    • DOI: 10.1088/1475-7516/2018/04/064

    QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding z ∼ 3 quasars
    journal, October 2018

    • Arrigoni Battaia, Fabrizio; Hennawi, Joseph F.; Prochaska, J. Xavier
    • Monthly Notices of the Royal Astronomical Society, Vol. 482, Issue 3
    • DOI: 10.1093/mnras/sty2827

    Possible evolution of the circum-galactic medium around QSOs with QSO age and cosmic time revealed by Ly α haloes
    journal, June 2019

    • Momose, Rieko; Goto, Tomotsugu; Utsumi, Yousuke
    • Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 1
    • DOI: 10.1093/mnras/stz1707

    The Associated Absorption Features in Quasar Spectra of the Sloan Digital Sky Survey. I. Mg ii Absorption Doublets
    journal, March 2018

    • Chen, Zhi-Fu; Huang, Wei-Rong; Pang, Ting-Ting
    • The Astrophysical Journal Supplement Series, Vol. 235, Issue 1
    • DOI: 10.3847/1538-4365/aaaaec

    Active galactic nuclei: what’s in a name?
    journal, August 2017

    • Padovani, P.; Alexander, D. M.; Assef, R. J.
    • The Astronomy and Astrophysics Review, Vol. 25, Issue 1
    • DOI: 10.1007/s00159-017-0102-9

    C IV broad absorption line disappearance in a large SDSS QSO sample
    journal, August 2018


    Identifying quasars with astrometric and mid-infrared methods from APOP and ALLWISE
    journal, October 2018


    The X-ray/UV ratio in active galactic nuclei: dispersion and variability
    journal, November 2018


    LQAC-5: The fifth release of the Large Quasar Astrometric Catalogue: A compilation of 592 809 objects with 398 697
    journal, April 2019


    Radio loudness along the quasar main sequence
    journal, September 2019


    Angular Baryon Acoustic Oscillation measure at z =2.225 from the SDSS quasar survey
    journal, April 2018

    • de Carvalho, E.; Bernui, A.; Carvalho, G. C.
    • Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04
    • DOI: 10.1088/1475-7516/2018/04/064

    QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding z ∼ 3 quasars
    journal, October 2018

    • Arrigoni Battaia, Fabrizio; Hennawi, Joseph F.; Prochaska, J. Xavier
    • Monthly Notices of the Royal Astronomical Society, Vol. 482, Issue 3
    • DOI: 10.1093/mnras/sty2827

    Possible evolution of the circum-galactic medium around QSOs with QSO age and cosmic time revealed by Ly α haloes
    journal, June 2019

    • Momose, Rieko; Goto, Tomotsugu; Utsumi, Yousuke
    • Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 1
    • DOI: 10.1093/mnras/stz1707

    The Associated Absorption Features in Quasar Spectra of the Sloan Digital Sky Survey. I. Mg ii Absorption Doublets
    journal, March 2018

    • Chen, Zhi-Fu; Huang, Wei-Rong; Pang, Ting-Ting
    • The Astrophysical Journal Supplement Series, Vol. 235, Issue 1
    • DOI: 10.3847/1538-4365/aaaaec