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The Effect of Helium Shell Flashes on Asymptotic Giant Branch Evolution

Published online by Cambridge University Press:  25 April 2016

E. Vassiliadis
Affiliation:
Mount Stromlo and Siding Spring Observatories, Private Bag, Weston Creek, ACT 2611
P.R. Wood
Affiliation:
Mount Stromlo and Siding Spring Observatories, Private Bag, Weston Creek, ACT 2611

Abstract

Mass-loss has been incorporated into a series of evolutionary calculations of low to intermediate mass stars during Asymptotic Giant Branch (AGB) evolution. When helium shell flashes occur a superwind phase is a natural consequence of the mass-loss process. The structure of the stellar wind envelopes that result has been computed. The models may explain some previously curious features seen in OH/IR and CO line emission spectra.

Type
Galactic and Stellar
Copyright
Copyright © Astronomical Society of Australia 1992

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