Statistics – Computation
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.249..352g&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 249, March 15, 1991, p. 352-367. Research supported by
Statistics
Computation
748
Active Galactic Nuclei, Cold Plasmas, Computational Astrophysics, Dark Matter, X Ray Binaries, Abundance, Compton Effect, Fluorescence, Monte Carlo Method, X Ray Irradiation
Scientific paper
The paper presents results of detailed Monte Carlo calculations of the interaction between X-rays and dense neutral material for use in the detailed interpretation of the X-ray spectra of AGN and X-ray binaries. The angular dependence, intensity, and spectrum of the 'reflected' radiation are calculated in a semiinfinite, plane-parallel configuration for power-law input spectra. It is found, as expected, that the angular distribution of continuum photons able to escape from the slab is highly anisotropic and a strong function of the initial energy and the angle of the incident X-rays. In addition, the competition within the slab between multiple electron (down) scattering of high-energy photons and photoelectric absorption of low-energy photons produces a Compton reflection hump in the albedo in the 20-100 keV band.
Fabian Andrea C.
George Ian Michael
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