grmonty: A MONTE CARLO CODE FOR RELATIVISTIC RADIATIVE TRANSPORT

被引:107
作者
Dolence, Joshua C. [1 ]
Gammie, Charles F. [1 ,2 ]
Moscibrodzka, Monika [2 ]
Leung, Po Kin [1 ]
机构
[1] Univ Illinois, Dept Astron, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
基金
美国国家科学基金会;
关键词
methods: numerical; MHD; radiative transfer; ACTIVE GALACTIC NUCLEI; ROTATING BLACK-HOLES; DISK CORONA MODELS; X-RAY BINARIES; ACCRETION DISK; COMPTON-SCATTERING; COMPACT OBJECTS; KERR SPACETIME; SIMULATIONS; POLARIZATION;
D O I
10.1088/0067-0049/184/2/387
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We describe a Monte Carlo radiative transport code intended for calculating spectra of hot, optically thin plasmas in full general relativity. The version we describe here is designed to model hot accretion flows in the Kerr metric and therefore incorporates synchrotron emission and absorption, and Compton scattering. The code can be readily generalized, however, to account for other radiative processes and an arbitrary spacetime. We describe a suite of test problems, and demonstrate the expected N-1/2 convergence rate, where N is the number of Monte Carlo samples. Finally, we illustrate the capabilities of the code with a model calculation, a spectrum of the slowly accreting black hole Sgr A* based on data provided by a numerical general relativistic MHD model of the accreting plasma.
引用
收藏
页码:387 / 397
页数:11
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