English

Infrared Number Counts of AGN in the GOODS Fields

Astrophysics 2007-05-23 v1

Abstract

Using the known numbers and evolution of unobscured AGN, and assuming that there is a large number of corresponding obscured AGN -- as expected if AGN unification is correct -- we predict the infrared number counts of AGN. These agree well with the observed GOODS Spitzer data at 3.6, 8 and 24 μ\mum, provided that the dust content of the obscuring torus is 2\sim 2x less than assumed. This strongly supports the AGN unification picture, and implies a large population of infrared bright obscured AGN at all redshifts and luminosities.

Keywords

Cite

@article{arxiv.astro-ph/0503057,
  title  = {Infrared Number Counts of AGN in the GOODS Fields},
  author = {E. Treister and C. Megan Urry and the GOODS AGN Team},
  journal= {arXiv preprint arXiv:astro-ph/0503057},
  year   = {2007}
}

Comments

To appear in the conference proceedings for Spitzer New Views of the Universe, held Nov. 2004 in Pasadena, CA