Accretion of Dissipative Dark Matter onto Active Galactic Nuclei
  We examine the possibility that accretion of Dissipative Dark Matter (DDM)
onto Active Galactic Nuclei (AGN) contributes to the growth rate of Super
Massive Black Holes (SMBHs). Such a scenario could alleviate tension associated
with anomalously large SMBHs measured at very early cosmic times, as well as
observations that indicate that the growth of the most massive SMBHs occurs
before $z\sim6$, with little growth at later times. These observations are not
readily explained within standard AGN theory. We find a range in the parameter
space of DDM models where we both expect efficient accretion to occur and which
is consistent with observations of a large sample of measured SMBHs. When DDM
accretion is included, the predicted evolution of this sample seems to be more
consistent with assumptions regarding maximal BH seed masses and maximal AGN
luminosities.
