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The Possible Role of Radiative Acceleration in Supporting Extended Atmospheres in Be Stars

Published online by Cambridge University Press:  14 August 2015

R. L. Kurucz  and
R. E. Schild
R. L. Kurucz
Affiliation:
Center for Astrophysics, Harvard College Observatory, and Smithsonïan Astrophysical Observatory Cambridge, Mass., U.S.A.
R. E. Schild
Affiliation:
Center for Astrophysics, Harvard College Observatory, and Smithsonïan Astrophysical Observatory Cambridge, Mass., U.S.A.

Abstract

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A detailed calculation of the radiative acceleration in B-type stars shows it to be a double-peaked function of effective temperature at small optical depths. The two peaks are shown to coincide approximately with peaks in the distribution of mean Hα emission strength as a function of B - V color in Be stars. These facts suggest that radiation may play an important role in the support of the Be star extended atmosphere.

Type
Part V: Models
Information
Symposium - International Astronomical Union , Volume 70: Be and Shell Stars , 1976 , pp. 377 - 382
Copyright
Copyright © Reidel 1976 

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