Nonlinear Problem of Polychromatic Scattering - Application to the NAI D-Line
Abstract
The paper deals with a nonlinear transfer problem of polychromatic scattering in case of general laws of the frequency redistribution in a three-dimensional medium consisting of atoms with three discrete energy levels. Transitions 2 3 are assumed to be completely forbidden. Application of Ambarzumian's method of self-consistent optical depths allows us to linearize the problem. Results of numerical calculations are given for the case of the Doppler redistribution law. Numerical results are applied to the sodium resonant doublet.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- October 1990
- DOI:
- 10.1007/BF00643309
- Bibcode:
- 1990Ap&SS.172..167K
- Keywords:
-
- Radiative Transfer;
- Scattering;
- Sodium;
- Stellar Spectra;
- Computational Astrophysics;
- Emission Spectra;
- Frequency Distribution;
- Molecular Energy Levels;
- Nonlinearity;
- Astrophysics