New instabilities in line driven winds

Details New instabilities in line driven winds New instabilities in line driven winds

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985nascp2358..226m&link_type=abstract

In NASA. Goddard Space Flight Center The Origin of Nonradiative Heating/Momentum in Hot Stars p 226-232 (SEE N85-17755 08-88)

Astronomy and Astrophysics

Astrophysics

Drift Rate, Line Shape, Linearity, Stability, Stellar Winds, Astrophysics, Extraterrestrial Radiation, Magnetic Dispersion, Wave Propagation

Scientific paper

The physical mechanisms which potentially lead to instabilities in line driven winds, the drift instability and the line shape instability, are discussed. A general three dimensional treatment of the stability problem of line driven winds which leads to the general dispersion equation is proposed. From this dispersion equation automatically a third physical mechanism driving instability in stellar winds is deduced; the thermal drift instability which is related to changes in absorption of radiation caused by temperature perturbations. This mechanism results in growing inwardly propagating sound waves.

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