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The Evidence for Aspect-Dependent Winds in Be Stars

Published online by Cambridge University Press:  23 September 2016

Carol A. Grady ,
Karen S. Bjorkman  and
Theodore P. Snow
Carol A. Grady
Affiliation:
Astronomy Programs, Computer Sciences Corporation, Beltsville MD, 20708, U.S.A.
Karen S. Bjorkman
Affiliation:
Center for Astrophysics and Space Astronomy, University of Colorado, Boulder CO 80309, U.S.A.
Theodore P. Snow
Affiliation:
Center for Astrophysics and Space Astronomy, University of Colorado, Boulder CO 80309, U.S.A.

Extract

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We present the results of a survey of stellar winds in 62 Be and 43 normal B stars in spectral types B0 to B5 and luminosity classes V-III. We find that in general the wind absorption seen in the resonance lines of C IV and Si IV in Be stars is the result of the superposed absorption from multiple shortward-shifted discrete absorption components. These components are observed in 63% of our Be stars, and are not observed in the normal B stars, confirming the result of Henrichs (1984).

Type
III. The Circumstellar Gas
Information
International Astronomical Union Colloquium , Volume 92: Physics of Be Stars , August 1987 , pp. 268 - 270
Copyright
Copyright © Cambridge University Press 1987

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