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Spectroscopic Studies of IRC+10216 and Similar Objects

Published online by Cambridge University Press:  14 August 2015

Stephen T. Ridgway
Affiliation:
Kitt Peak National Observatory∗
Donald N. B. Hall
Affiliation:
Kitt Peak National Observatory∗

Abstract

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Spectroscopy of circumstellar molecular species in the 2-14μm range provides evidence for a range of shell optical depths in the +10216 class of stars. In some cases a photospheric spectrum is present. The spectrum of +10216 shows absorption over a range of velocities including two distinct velocities of different excitation temperature. The occurrence of multiple velocities may be common in similar objects.

Type
Research Article
Copyright
Copyright © Reidel 1980 

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