The role of sound waves in Be-star winds

Details The role of sound waves in Be-star winds The role of sound waves in Be-star winds

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...263..208k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 263, no. 1-2, p. 208-218.

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10

B Stars, Sound Waves, Stellar Winds, Computational Astrophysics, Stellar Mass Ejection, Stellar Models

Scientific paper

A stellar wind model is presented which combines radiation pressure in spectral lines with pressure due to linear sound waves. It is shown that the addition of a flux of sound waves into a radiatively driven wind increases the mass loss and decreases the wind velocity. However, a significant contribution to the mass-loss rate of Be stars is obtained only by waves of such a high amplitude that the linear approximation is not valid anymore. The maximum mass-loss rate obtainable by linear sound waves is insufficient by far to match observational constraints for Be stars. The theory may still be of interest for low-gravity, luminous stars.

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