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The role of radiation pressure in LBV atmospheres

Published online by Cambridge University Press:  12 April 2016

I. Appenzeller
I. Appenzeller*
Affiliation:
Landessternwarte KönigstuhlD-6900 Heidelberg 1Federal Republic of Germany

Abstract

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As LBVs have luminosities close to their Eddington limits, their structure is profoundly influenced by radiation pressure. Radiation pressure effects probably cause the highly extended atmospheres and the extreme mass loss observed during the maximum states of the S Dor variables. An opacity-related instability of the radiative acceleration combined with a delayed thermal readjustement of the sub-atmospheric layers possibly explains the large-amplitude radius variations of these objects.

Type
Section I: Main Papers, General Discussions, and Two Panel Discussions
Information
International Astronomical Union Colloquium , Volume 113: Physics of Luminous Blue Variables , 1989 , pp. 195 - 204
Copyright
Copyright © Kluwer 1989

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