Compton scattering in a converging fluid flow - I. The transfer equation
R. D. BlandfordW. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USAD. G. PayneW. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA
1981en
ABI
Abstract
The equations describing Compton scattering in an optically thick fluid flow are derived under the diffusion approximation. The relative importance of the bulk and random motions of the scattering electrons is discussed. In a converging fluid flow of speed u, bulk acceleration of photons dominates thermal Comptonization when u ≳ |$(12 kT_\text e/m_\text e)^{1/2}$|.
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