grmonty: A MONTE CARLO CODE FOR RELATIVISTIC RADIATIVE TRANSPORT

Journal Article · Thu Oct 01 00:00:00 EDT 2009 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/184/2/387; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301553

Dolence, Joshua C; Gammie, Charles F; Leung, Po Kin ^[1]; Moscibrodzka, Monika ^[2]

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1. Astronomy Department, University of Illinois, Urbana, IL 61801 (United States)
2. Physics Department, University of Illinois, Urbana, IL 61801 (United States)

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 {sup -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.

• OSTI ID: 21301553
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 184, Issue 2; Other Information: DOI: 10.1088/0067-0049/184/2/387; Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ABSORPTION
BLACK HOLES
COMPTON EFFECT
GENERAL RELATIVITY THEORY
KERR METRIC
MAGNETOHYDRODYNAMICS
MONTE CARLO METHOD
OPTICALLY THIN PLASMA
RADIANT HEAT TRANSFER
RELATIVISTIC RANGE
SPACE-TIME