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- W3102823774 endingPage "780" @default.
- W3102823774 startingPage "766" @default.
- W3102823774 abstract "The validity of the hypothesis that the massive black holes in high redshift quasars grew from stellar-sized seeds is contingent on a seed's ability to double its mass every few ten million years. This requires that the seed accrete at approximately the Eddington-limited rate. In the specific case of radiatively efficient quasiradial accretion in a metal-poor protogalactic medium, for which the Bondi accretion rate is often prescribed in cosmological simulations of massive black hole formation, we examine the effects of the radiation emitted near the black hole's event horizon on the structure of the surrounding gas flow. We find that the radiation pressure from photoionization significantly reduces the steady-state accretion rate and renders the quasiradial accretion flow unsteady and inefficient. The time-averaged accretion rates are a small fraction of the Eddington-limited accretion rate for Thomson scattering. The pressure of Ly-alpha photons trapped near the HII region surrounding the black hole may further attenuate the inflow. These results suggest that an alternative to quasiradial, radiatively efficient Bondi-like accretion should be sought to explain the rapid growth of quasar-progenitor seed black holes." @default.
- W3102823774 created "2020-11-23" @default.
- W3102823774 creator A5041245596 @default.
- W3102823774 creator A5046630029 @default.
- W3102823774 creator A5067199828 @default.
- W3102823774 creator A5086780511 @default.
- W3102823774 date "2009-05-22" @default.
- W3102823774 modified "2023-10-02" @default.
- W3102823774 title "ACCRETION ONTO “SEED” BLACK HOLES IN THE FIRST GALAXIES" @default.
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