Infrared Number Counts of AGN in the GOODS Fields
  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 $\mu$m, provided that the dust content of the obscuring torus is $\sim 2$x 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. 
E. Treister (1,2) C. Megan Urry (2,3) and the GOODS AGN Team ((1)Depto   de Astronomia, U. de Chile, (2) Yale Center for Ast...