Astrophysical: Quasars

  • Publication
    The ROSAT UK medium sensitivity survey.
    The authors present the first results on the optical identification of 89 ROSAT sources on the second Lockman hole. Because of the low Galactic H I column...
  • Publication
    The ROSAT UK Medium Sensitivity Survey: optical identification and relation to X-ray spectral properties
    We present the first results on the optical identification of 89 sources with S(0.5-2 keV)>=1.7x10^-14 erg s^-1 cm^-2 detected in eight ROSAT Position Sensitive...
  • Publication
    The SDSS-III Baryon Oscillation Spectroscopic Survey: The Quasar Luminosity Function from Data Release Nine
    We present a new measurement of the optical quasar luminosity function (QLF), using data from the Sloan Digital Sky Survey-III: Baryon Oscillation Spectroscopic...
  • Publication
    The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection
    As part of the Sloan Digital Sky Survey (SDSS) IV the extended Baryon Oscillation Spectroscopic Survey (eBOSS) will improve measurements of the cosmological...
  • Publication
    The Sloan Digital Sky Survey Quasar Catalog: Fourteenth data release
    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...
  • Publication
    The Sloan Digital Sky Survey quasar catalog: ninth data release
    We present the Data Release 9 Quasar (DR9Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog...
  • Publication
    The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release
    We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS)...
  • Publication
    The Sloan Digital Sky Survey quasar catalog: tenth data release
    We present the Data Release 10 Quasar (DR10Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog...
  • Publication
    The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release
    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...