The cosmological history of accretion onto dark halos and supermassive black holes

  title={The cosmological history of accretion onto dark halos and supermassive black holes},
  author={Lance Miller and Will J Percival and Scott M. Croom and A. Babi{\'c}},
  journal={Astronomy and Astrophysics},
Aims. We investigate the cosmological growth of dark halos and follow the consequences of coeval growth for the accretion history of associated supermassive black holes. Methods. The Press-Schechter approximation is used to obtain an analytic expression for the mean rate of growth of dark matter halos. Dark halo accretion rates are compared with numerical work and the consequences for understanding AGN evolution are described. Results. The mean accretion rate onto dark matter halos is shown to… 

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