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Circumstellar Dust Shells

Published online by Cambridge University Press:  14 August 2015

L. M. Shulman
L. M. Shulman*
Affiliation:
The Main Astronomical Observatory of the Ukrainian Academy of Sciences, Kiev

Abstract

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The optical properties of circumstellar graphite particle shells are considered. In the case of the optically thin shell (e.g. the shell of a RCB star after minimum), the temperature of the grains is calculated. It is shown that the dust shell always has a sharp inner border. The RCB phenomenon may be considered as a sudden moving of this border toward the star and the consequent increase in its optical thickness.

Type
Part 2 / R Coronae Borealis Stars
Information
Symposium - International Astronomical Union , Volume 67: Variable Stars and Stellar Evolution , 1975 , pp. 165 - 171
Copyright
Copyright © Reidel 1975 

References

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