Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..278n&link_type=abstract
Astrophysical Journal, Part 1, vol. 251, Dec. 1, 1981, p. 278-296.
Astronomy and Astrophysics
Astrophysics
93
Anisotropic Media, Compton Effect, Plasma Radiation, Pulsars, Radiative Transfer, X Ray Sources, High Temperature Plasmas, Hydrogen Plasma, Photons, Plasma Slabs, Polarization Characteristics, Scattering Cross Sections, Self Consistent Fields, Transport Properties
Scientific paper
Results of radiative transfer calculations are presented for radiating slabs and columns of strongly magnetized plasma. The angular dependence of the escaping radiation is numerically determined by Feautrier's method (Mihalas, 1978), using the differential scattering cross sections derived by Ventura (1979). An approximate analytical expression is given for the anisotropy of the outgoing radiation based on a system of two coupled diffusion equations for ordinary and extraordinary photons. The approximate method is found to reproduce all the basic characteristics of the more accurate numerical solution for optically thin and optically thick atmospheres, and pulse profiles that can be derived from the model are discussed and compared with observations on Her X-1.
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