Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...255..293s&link_type=abstract
Astrophysical Journal, Part 1, vol. 255, Apr. 1, 1982, p. 293-302.
Astronomy and Astrophysics
Astrophysics
23
Monte Carlo Method, Radiative Transfer, Resonance Lines, Stellar Atmospheres, Astronomical Models, Boundary Value Problems, Optical Density, Photons
Scientific paper
Results are presented of resonance radiative transfer calculations for a plane-parallel semi-infinite atmosphere. In the calculations, an isotropically emitting source of line photons is embedded at a certain line-center optical depth from the edge of the atmosphere. In reality, the thermalization length provides an effective physical cutoff for the optical depth of a stellar atmosphere, usually, however, with the thermalization length being much greater than line-center optical depth. The absence of any true absorber is assumed here, but an effectively finite medium is considered by introducing a perfectly reflecting mirror at a certain depth beyond the photon source.
Salpeter Edwin E.
Slater Greg
Wasserman Ira
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