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The IR Color Evolution of Circumstellar Shells

Published online by Cambridge University Press:  30 March 2016

B. M. Lewis  and
Yervant Terzian
B. M. Lewis
Affiliation:
N.A.I.C.P.O. Box 995 Arecibo, PR00612
Yervant Terzian
Affiliation:
N.A.I.C. Cornell University, Ithaca, NY14853

Abstract

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The far IR colors of circumstellar shells are delimited by those with masers; few other objects share the same colors. The resulting (25–12)µm color range is primarily due to secular increases in the mass-loss rate, up to a progenitor-mass dependent maximum. Only the most massive progenitors can sustain the mass-loss rate required by the reddest shells.

Type
Joint Commission Meetings
Information
Highlights of Astronomy , Volume 9: Highlights of Astronomy. As presented at the XXIst General Assembly of the IAU, 1991 , 1992 , pp. 609 - 612
Copyright
Copyright © Kluwer 1992

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