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Imaging Molecular Envelopes of Evolved Stars

Published online by Cambridge University Press:  12 April 2016

John H. Bieging*
Affiliation:
Steward Observatory, University of Arizona, Tucson AZ 85721 USA

Abstract

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Resolved images of molecular emission lines from the envelopes of cool evolved stars reveal much about the physical processes by which such stars lose mass, about the chemical processes which occur in the outflowing gas, and about the evolution of the star to the planetary nebula stage. This paper reviews observational work on molecular line imaging at mm-wavelengths of carbon stars, Miras, proto-planetary nebulae, and planetary nebulae. The impact of these observations on our understanding of the late stages of stellar evolution as it affects the circumstellar environment is emphasized.

Type
3. Astronomical Results and Prospects
Copyright
Copyright © Astronomical Society of the Pacific 1994

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