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A lower limit on the surface C-12/C-13 ratio in Alpha OrionisThe second overtone CO bands near 1.6 microns were analyzed in Alpha Ori using synthetic spectra. No firm identification of (C-13)O was made, which allowed a lower limit of 20 to be set on the C-12/C-13 ratio. A rather low microturbulent velocity of 2 km/s was found to match the spectrum of Alpha Ori best.
Document ID
19760050464
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gautier, T. N., III (Arizona Univ. Tucson, AZ, United States)
Fink, U. (Arizona Univ. Tucson, AZ, United States)
Larson, H. P. (Arizona, University Tucson, Ariz., United States)
Thompson, R. I. (Steward Observatory; Arizona, University Tucson, Ariz., United States)
Date Acquired
August 8, 2013
Publication Date
May 1, 1976
Publication Information
Publication: Astrophysical Journal
Volume: 205
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF GP-31607
CONTRACT_GRANT: NSG-7070
Distribution Limits
Public
Copyright
Other