Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236..609h&link_type=abstract
Astrophysical Journal, Part 1, vol. 236, Mar. 1, 1980, p. 609-618.
Astronomy and Astrophysics
Astrophysics
96
Electromagnetic Absorption, Energy Dissipation, Optical Resonance, Photons, Quasars, Radiative Transfer, Doppler Effect, Frequency Distribution, Mean Free Path, Optical Thickness, Particle Trajectories, Scaling Laws
Scientific paper
The mean path length of photons undergoing repeated scatterings in media of large optical thickness is calculated from accurate numerical solutions of the transfer equation including the effect of frequency redistribution characteristic of combined Doppler and natural broadening. Energy loss by continuous absorption processes, such as ionization or dust absorption, is discussed, and asymptotic scaling laws for the energy loss, the mean path length, and the mean number of scatterings are inferred from the numerical data.
Hummer David G.
Kunasz Paul Belknap
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