Radiative transfer in atmospheres with spherical symmetry. III - The Eddington approximation

Details Radiative transfer in atmospheres with spherical symmetry. III - The Eddington approximation Radiative transfer in atmospheres with spherical symmetry. III - The Eddington approximation

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jqsrt..20...49s&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 20, July 1978, p. 49-53.

Physics

Atmospheric Effects, Eddington Approximation, Radiative Transfer, Spheres, Opacity, Scale Height

Scientific paper

The paper presents a new generalization of the Eddington approximation for radiative transfer problems in systems with spherical geometry. An analytical expression for the Eddington factor is deduced for the case when the opacity relation, assumed to be a known function of the radial distance, is an explicit variable. This easily determined expression together with the first two moment equations gives better results for spherical systems than the corresponding relation (f equals 1/3) provides in plane systems.

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