Radiative transfer in dusty nebulae. III - The effects of dust albedo

Details Radiative transfer in dusty nebulae. III - The effects of dust albedo Radiative transfer in dusty nebulae. III - The effects of dust albedo

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241.1094p&link_type=abstract

Astrophysical Journal, Part 1, vol. 241, Nov. 1, 1980, p. 1094-1106.

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Albedo, Cosmic Dust, Nebulae, Radiative Transfer, Eddington Approximation, Infrared Spectra, Ionization, Optical Properties, Temperature Gradients

Scientific paper

The effects of an albedo of internal dust, such as ionization structure and temperature of dust grain, were studied by the quasi-diffusion method with an iterative technique for solving the radiative heat transfer equations. It was found that the generalized on-the-spot approximation solution is adequate for most astrophysical applications for a zero albedo; for a nonzero albedo, the Eddington approximation is more accurate. The albedo increases the average energy of the diffuse photons, increasing the ionization level of hydrogen and heavy elements if the Eddington approximation is applied; the dust thermal gradient is reduced so that the infrared spectrum approaches blackbody spectrum with an increasing albedo.

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