bhlight: GENERAL RELATIVISTIC RADIATION MAGNETOHYDRODYNAMICS WITH MONTE CARLO TRANSPORT

被引：67

作者：

Ryan, B. R. ^{[1
]}

Dolence, J. C. ^{[2
]}

Gammie, C. F. ^{[1
,3
]}

机构：

[1] Univ Illinois, Dept Astron, Urbana, IL 61801 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

ASTROPHYSICAL JOURNAL | 2015年 / 807卷 / 01期

基金：

美国国家科学基金会;

关键词：

black hole physics; methods: numerical; relativistic processes; 2-COMPONENT ACCRETION FLOW; SUPER-EDDINGTON ACCRETION; BLACK-HOLE; SPHERICAL ACCRETION; OPTICALLY THICK; HYDRODYNAMICS; DISKS; CODE; SIMULATION; LUMINOSITY;

D O I：

10.1088/0004-637X/807/1/31

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present bhlight, a numerical scheme for solving the equations of general relativistic radiation magnetohydrodynamics using a direct Monte Carlo solution of the frequency-dependent radiative transport equation. bhlight is designed to evolve black hole accretion flows at intermediate accretion rate, in the regime between the classical radiatively efficient disk and the radiatively inefficient accretion flow (RIAF), in which global radiative effects play a sub-dominant but non-negligible role in disk dynamics. We describe the governing equations, numerical method, idiosyncrasies of our implementation, and a suite of test and convergence results. We also describe example applications to radiative Bondi accretion and to a slowly accreting Kerr black hole in axisymmetry.

引用

页数：20

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