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The Line-Driven Instability

Published online by Cambridge University Press:  12 April 2016

Achim Feldmeier
Achim Feldmeier*
Affiliation:
University of Kentucky, Lexington, KY 40503, USA

Abstract

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The line-driven instability may cause pronounced structure in winds of hot, luminous stars, e.g., fragments of dense shells, strong reverse shocks, and fast cloudlets. We discuss the linear stability theory, including the line-drag effect, phase reversal due to the diffuse radiation field, and the relevance of so-called Abbott waves. Recent hydrodynamic simulations focuss on the influence of a time-dependent source function on the flow structure, and on the X-ray emission from wind shocks and cloud collisions.

Type
Session IV Theories of Wind Variations
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 285 - 293
Copyright
Copyright © Springer-Verlag 1999

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