Numerical solution of the equation of radiation transfer in spherical geometry

Details Numerical solution of the equation of radiation transfer in spherical geometry Numerical solution of the equation of radiation transfer in spherical geometry

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....86..286y&link_type=abstract

Astronomy and Astrophysics, vol. 86, no. 3, June 1980, p. 286-294.

Computer Science

Numerical Analysis

67

Numerical Analysis, Radiative Transfer, Stellar Envelopes, Stellar Radiation, Convergence, Equations Of Motion, Error Analysis, Run Time (Computers), Spheres, State Vectors, Stellar Atmospheres

Scientific paper

An efficient numerical method for solving the detailed radiation transfer problem in extended spherical envelopes is presented which is valid for discontinuous source functions and discontinuous state variables. It is shown how the equations of motion and radiation transport can be coupled and solved simultaneously, and the solution of the time-independent radiative transfer problem in the dusty gas surrounding a cocoon star is described. Also discussed are practical considerations with regard to total storage and time requirements, stability and convergence properties, and numerical accuracy.

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