Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981plap.rept..331i&link_type=abstract
In ESA Plasma Astrophys. p 331-332 (SEE N82-20030 10-88)
Astronomy and Astrophysics
Astrophysics
Compton Effect, Kinetic Equations, Photon-Electron Interaction, Astrophysics, Boltzmann Distribution, Electron Distribution, Neutron Stars, Radiative Transfer, Space Plasmas, Stellar Atmospheres
Scientific paper
The kinetic equations that describe the time evolution of the distribution of nondegenerate nonrelativistic electrons interacting with isotropic thermal photons via Compton scattering are derived. Two cases, when the electrons are isotropic and when the electron motion is restricted to one spatial dimension due to strong magnetic field, are considered. The latter case is relevant to radiative transfer in the atmosphere of neutron stars with magnetic field of order 10 to the 12th power G. The time scales associated with various competing processes in the system are compared and the applicability of these equations is discussed. Explicit calculation results for the entropy gain show that these equations satisfy Boltzmann's H theorem for the coupled electron-photon system as a whole.
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