Other
Scientific paper
Jan 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...219..635m&link_type=abstract
Astrophysical Journal, Part 1, vol. 219, Jan. 15, 1978, p. 635-653.
Other
51
Atomic Energy Levels, O Stars, Radiative Transfer, Stellar Atmospheres, Stellar Spectra, Transfer Functions, Atmospheric Models, Line Spectra, Stellar Mass Ejection, Stellar Models, Stellar Winds, Supergiant Stars
Scientific paper
The coupled radiative transfer and statistical equilibrium equations for multilevel ionic structures in the atmospheres of early-type stars are solved. Both lines and continua are treated consistently; the treatment is applicable throughout a transonic wind, and allows for the presence of background continuum sources and sinks in the transfer. An equivalent-two-level-atoms approach provides the solution for the equations. Calculations for simplified He (+)-like model atoms in parameterized isothermal wind models indicate that subordinate line profiles are sensitive to the assumed mass-loss rate, and to the assumed structure of the velocity law in the atmospheres.
Kunasz Paul Belknap
Mihalas Dimitri
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