The non-linear evolution of strange-mode instabilities

Details The non-linear evolution of strange-mode instabilities The non-linear evolution of strange-mode instabilities

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.303..116g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 303, Issue 1, pp. 116-124.

Other

36

Hydrodynamics, Instabilities, Stars: Oscillations, Supergiants, Stars: Variables: Other, Stars: Wolf, Rayet

Scientific paper

Numerical simulations of the evolution of strange-mode instabilities into the non-linear regime have been performed for massive objects and Wolf-Rayet stars. Velocity amplitudes above 10^2 km s^-1 can be reached which exceed the escape velocity and imply mass loss for massive objects. Although for Wolf-Rayet stars direct mass loss is not observed, the velocity field established by the instability may be sufficient to initiate a line-driven wind. The results are sensitive to the numerical treatment of the problem.

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