The Accretion History of AGN: A Newly Defined Population of Cold Quasars

  title={The Accretion History of AGN: A Newly Defined Population of Cold Quasars},
  author={A. Kirkpatrick and C. Urry and J. Brewster and K. C. Cooke and M. Estrada and E. Glikman and K. Hamblin and T. Ananna and C. Carlile and Brandon Coleman and J. Johnson and J. Kartaltepe and S. LaMassa and S. Marchesi and M. Powell and D. Sanders and E. Treister and T. Turner},
  journal={arXiv: Astrophysics of Galaxies},
  • A. Kirkpatrick, C. Urry, +15 authors T. Turner
  • Published 2019
  • Physics
  • arXiv: Astrophysics of Galaxies
  • Quasars are the most luminous of active galactic nuclei (AGN), and are perhaps responsible for quenching star formation in their hosts. The Stripe 82X catalog covers 31.3 deg$^2$ of the Stripe 82 field, of which the 15.6 deg$^2$ covered with XMM-Newton is also covered by Herschel/SPIRE. We have 2500 X-ray detected sources with multi-wavelength counterparts, and 30% of these are unobscured quasars, with $L_X > 10^{44}\,$erg/s and $M_B 30$mJy. We refer to these Herschel-detected, unobscured… CONTINUE READING
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