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Circumstellar Dust around M, S and C Stars

Published online by Cambridge University Press:  25 May 2016

Irene R. Little-Marenin*
Affiliation:
Wellesley College, Wellesley, MA 02181, U.S.A.

Abstract

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The circumstellar shells of M stars produce emission features due to amorphous silicates peaking around 10 and 18 μm, with additional emission at 11 μm due to crystalline olivine and at 13.1 μm (unknown carrier). C stars are associated with SiC dust emission at 11.2 μm with additional emission around 8.9 μm, whereas S stars have a relatively weak 10.5 μm emission feature which is due neither to silicates nor to SiC.

Type
Session VIII — Circumstellar Shells
Copyright
Copyright © Kluwer 2000 

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