The role of Compton heating in radiation-regulated accretion on to black holes
@article{Park2014TheRO, title={The role of Compton heating in radiation-regulated accretion on to black holes}, author={KwangHo Park and Massimo Ricotti and Tiziana di Matteo and Christopher S. Reynolds}, journal={Monthly Notices of the Royal Astronomical Society}, year={2014}, volume={445}, pages={2325-2330} }
We investigate the role of Compton heating in radiation-regulated accretion on to black holes from a neutral dense medium using 1D radiation-hydrodynamic simulations. We focus on the relative effects of Compton-heating and photo-heating as a function of the spectral slope {\alpha}, assuming a power-law spectrum in the energy range of 13.6 eV--100 keV. While Compton heating is dominant only close to the black hole, it can reduce the accretion rate to 0.1 % ($l \propto \dot{m}^2$ model)--0.01…
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References
SHOWING 1-10 OF 46 REFERENCES
ACCRETION ONTO INTERMEDIATE-MASS BLACK HOLES REGULATED BY RADIATIVE FEEDBACK. I. PARAMETRIC STUDY FOR SPHERICALLY SYMMETRIC ACCRETION
- Physics
- 2010
We study the effect of radiative feedback on accretion onto intermediate-mass black holes (IMBHs) using the hydrodynamical code ZEUS-MP with a radiative transfer algorithm. In this paper, the first…
ACCRETION ONTO INTERMEDIATE-MASS BLACK HOLES IN DENSE PROTOGALACTIC CLOUDS
- Physics
- 2009
We present the first results from two-dimensional simulations of radiatively efficient accretion of metal-free gas onto intermediate-mass black holes. We fix the shape of the spectral energy…
GLOBAL COMPTON HEATING AND COOLING IN HOT ACCRETION FLOWS
- Physics
- 2009
The hot accretion flow (such as advection-dominated accretion flow) is usually optically thin in the radial direction, therefore the photons produced at one radius can travel for a long distance…
ACCRETION ONTO BLACK HOLES FROM LARGE SCALES REGULATED BY RADIATIVE FEEDBACK. III. ENHANCED LUMINOSITY OF INTERMEDIATE-MASS BLACK HOLES MOVING AT SUPERSONIC SPEEDS
- Physics
- 2012
In this third paper of a series, we study the growth and luminosity of black holes (BHs) in motion with respect to their surrounding medium. We run a large set of two-dimensional axis-symmetric…
Compton Heating of the Intergalactic Medium by the Hard X-Ray Background
- Physics
- 1999
High-resolution hydrodynamics simulations of the Lyα forest in cold dark matter dominated cosmologies appear to predict line widths that are substantially narrower than those observed. Here we point…
Radiative Feedback from Massive Black Holes in Elliptical Galaxies: AGN Flaring and Central Starburst Fueled by Recycled Gas
- Physics
- 2007
We show how the observed AGN radiative output from massive black holes at the centers of elliptical galaxies affects the hot ISM of these systems with the aid of a high-resolution hydrodynamical…
Radiative feedback from quasars and the growth of massive black holes in stellar spheroids
- Physics
- 2005
We discuss the importance of feedback via photoionization and Compton heating on the co-evolution of massive black holes (MBHs) at the centre of spheroidal galaxies, and their stellar and gaseous…
Rayleigh-Taylor instability of ionization front around black holes
- Physics
- 2014
We examine the role of ionizing radiation emitted from black holes (BHs) in suppressing the growth of the Rayleigh-Taylor instability (RTI) across the ionization front (I-front) that forms when the…
Time-dependent spherically symmetric accretion onto compact X-ray sources
- Physics
- 1978
We show that preheating of spherically symmetric accreting gas flows by the emergent radiation from the accreting stars will result in time-dependent behavior for a much wider range of source…
Accretion onto Intermediate-mass Seed Black Holes in Primordial Galaxies
- Physics
- 2011
The origin of the supermassive black holes that power the most distant quasars observed is largely unknown. One hypothesis is that they grew rapidly from intermediate-mass seeds (~100 M_sun) left by…