A lower limit on the surface C-12/C-13 ratio in Alpha Orionis

Gautier, T. N., III; Fink, U.; Larson, H. P.; Thompson, R. I.

The 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)

doi:10.1086/154339

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

Funding Number(s)

Distribution Limits

Public

Other

NTRS

NTRS - NASA Technical Reports Server