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Some observations relevant to the theory of extended envelopes

Published online by Cambridge University Press:  04 August 2017

B. Wolf
B. Wolf*
Affiliation:
Landessternwarte Königstuhl, 6900 Heidelberg, West Germany

Abstract

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Recent observations of S Dor variables and B[e]-supergiants are reviewed. These objects belong to the visually and bolometrically brightest stars in the universe. They have gained considerable interest for their exceptional stellar wind properties and represent rare cases of hot blue stars which form dust envelopes. S Dor variables are characterized by major outbursts. The ejecta have been spatially resolved in some cases. These luminous emission line stars are supposed to represent a short-lived phase in the evolution of the very massive stars prior to becoming WR stars.

Type
Mass Loss from Hot Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 409 - 423
Copyright
Copyright © Reidel 1987 

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