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A study of extreme carbon stars. I - Silicon carbide emission features10-micron spectra of many extreme carbon stars reveal a prominent emission feature near 11 microns. This is compared with laboratory spectra of SiC grains. Two distinct types of features are found, perhaps indicative of different mechanisms of grain formation in different stars. Estimates are made of probable column densities and total masses of SiC in the circumstellar shells.
Document ID
19840037474
Document Type
Reprint (Version printed in journal)
Authors
Cohen, M.
(NASA Ames Research Center Moffett Field; California, University, Berkeley, CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Royal Astronomical Society, Monthly Notices
Volume: 206
ISSN: 0035-8711
Subject Category
Astrophysics
Accession Number
84A20261
Distribution Limits
Public
Copyright
Other

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