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Title:
Comptonization of X-rays in plasma clouds - Typical radiation spectra
Authors:
Sunyaev, R. A.; Titarchuk, L. G.
Affiliation:
AA(Akademiia Nauk SSSR, Institut Kosmicheskikh Issledovanii, Moscow, USSR), AB(Akademiia Nauk SSSR, Institut Kosmicheskikh Issledovanii, Moscow, USSR)
Publication:
Astronomy and Astrophysics, vol. 86, no. 1-2, June 1980, p. 121-138. (A&A Homepage)
Publication Date:
06/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
COMPTON EFFECT, PLASMA CLOUDS, RADIATIVE TRANSFER, X RAY SCATTERING, X RAY SOURCES, ELECTRON PLASMA, IRON, LINE SHAPE, PLASMA RADIATION, PLASMA TEMPERATURE
Comment:
A&AA ID. AAA027.063.045
Bibliographic Code:
1980A&A....86..121S

Abstract

A cloud of completely ionized plasma with sources of photons distributed in it is considered. The photon diffusion problem is solved and the distribution of the photons over their escape times is found to be similar to the light curve for X-ray bursters. The solution of the stationary Kompaneets equation is given by the Whitteker function. The formation of radiation spectra due to Comptonization in both cold and hot electron plasma clouds are obtained. The formulae obtained allow the plasma temperature in the region of the main energy release in Cyg X-I source to be determined. The effect of Comptonization on the X-ray iron spectral line profiles strongly depends on the law of photon sources distribution over the plasma cloud.

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