Radiative damping of acoustic waves in the atmospheres of late-type stars
Abstract
The effect of height-dependent opacity on the radiative damping of acoustic waves in the atmospheres of late-type stars is investigated theoretically, using an optically thin approximation of isothermal equilibrium atmospheres and assuming a general power law formula for the opacity. Easily computed expressions, formulas, and functions are presented which apply to late-type stars of the luminosity classes III and V. Results are presented of comparisons carried out for waves with spatial damping and waves with time damping in isothermal homogeneous gases.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1990
- Bibcode:
- 1990A&A...229..177S
- Keywords:
-
- Late Stars;
- Radiative Transfer;
- Sound Waves;
- Stellar Atmospheres;
- Optical Thickness;
- Stellar Luminosity;
- Wave Equations;
- Wentzel-Kramer-Brillouin Method;
- Astrophysics