Accretion Onto Intermediate-mass Black Holes Regulated By Radiative Feedback

Details Accretion Onto Intermediate-mass Black Holes Regulated By Radiative Feedback Accretion Onto Intermediate-mass Black Holes Regulated By Radiative Feedback

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21540412p&link_type=abstract

American Astronomical Society, AAS Meeting #215, #404.12; Bulletin of the American Astronomical Society, Vol. 42, p.226

Astronomy and Astrophysics

Astronomy

Scientific paper

We study gas accretion onto intermediate mass black holes regulated by radiation feedback. We utilize the hydrodynamical code ZEUS-MP with the addition of a ray-tracing module. Our 1D and 2D simulations provide insight into how heating by X-ray and UV radiation influences the gas accretion rate. This allows us to determine how rapidly the first intermediate mass black holes can grow in the early Universe. We confirm the existence of an oscillatory behavior of the accretion rate and we parametrize the accretion duty cycle as a function of the black hole mass, radiative efficiency and interstellar gas properties. We also run simulations of moving intermediate mass black holes.

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