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Extremely Luminous Atmospheres

Published online by Cambridge University Press:  12 April 2016

Nir J. Shaviv
Nir J. Shaviv*
Affiliation:
Theoretical Astrophysics 130-33, Caltech, Pasadena, CA91125

Abstract

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We present the effects that inhomogeneities have on radiating atmospheres. It is shown that nonuniformities in a medium induce a reduction of the effective opacity which subsequently increases the Eddington Luminosity. The most striking effect however that arises from the dependence of the opacity on the inhomogeneities, is the possibility of a phase transition, where the atmosphere energetically favors exciting horizontally propagating waves due to large fluxes.

Type
Section II Theory of Non-spherical Winds
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 155 - 158
Copyright
Copyright © Springer-Verlag 1999

References

Shaviv, N.J., (1998a): The Eddington luminosity limit for multi-phased media. The Astrophys. J., 494, L193.Google Scholar
Shaviv, N.J., (1998b): A phase transition of luminous atmospheres. Submitted to the Astrophys. J.Google Scholar