Radiative damping of acoustic waves in the atmospheres of late-type stars

Details Radiative damping of acoustic waves in the atmospheres of late-type stars Radiative damping of acoustic waves in the atmospheres of late-type stars

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229..177s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 1, March 1990, p. 177-185.

Computer Science

Sound

6

Late Stars, Radiative Transfer, Sound Waves, Stellar Atmospheres, Optical Thickness, Stellar Luminosity, Wave Equations, Wentzel-Kramer-Brillouin Method

Scientific paper

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.

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