Flux-limited diffusion in a scattering medium

Details Flux-limited diffusion in a scattering medium Flux-limited diffusion in a scattering medium

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...374..732m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 374, June 20, 1991, p. 732-740. Research supported by Alfred P. Sloan Found

Astronomy and Astrophysics

Astrophysics

10

Accretion Disks, Binary Stars, Diffusion Coefficient, Radiative Transfer, Stellar Coronas, Optical Thickness, Stellar Atmospheres, Stellar Mass Accretion, Temperature Profiles, Thomson Scattering

Scientific paper

A diffusion equation (FDT) is presented with a coefficient that reduces to the appropriate limiting form in the streaming and near thermodynamic limits for a moving fluid in which the dominant source of opacity is Thomson scattering. The present results are compared to those obtained with the corresponding equations for an absorptive medium. It is found that FDT for a scattering medium is accurate to better than less than about 17 percent over the range of optical depths of tau in the range of about 0 to 3.

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