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Limits on the C^(12)/C^(13)Ratio in Metal-Deficient Stars

Cohen, J. G. and Grasdalen, G. L. (1968) Limits on the C^(12)/C^(13)Ratio in Metal-Deficient Stars. Astrophysical Journal, 151 . L41-L43. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20190529-103831576

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Abstract

Lower limits for the ratio C^(12)/C^(13) have been determined for eight metal-deficient stars. These limits are inconsistent with the predictions of nearly all of the universal models considered by Wagoner, Fowler, and Hoyle (1967) unless at least one generation of massive, rapidly evolving stars existed before the formation of any of the program stars.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1086/180136DOIArticle
http://adsabs.harvard.edu/abs/1968ApJ...151L..41CADSArticle
ORCID:
AuthorORCID
Cohen, J. G.0000-0002-8039-4673
Additional Information:© American Astronomical Society • Provided by the NASA Astrophysics Data System. Received October 25, 1967. This research has been supported in part by grant NGR 22-024-001 from the National Aeronautics and Space Administration and grant GP 7030 of the National Science Foundation. We should like to thank Prof. W. A. Fowler and Dr. R. Wagoner for helpful discussions. We thank Prof. Jesse L. Greenstein for the plate material. We are very grateful to Dr. Stephen E. Strom, who suggested the problem and provided funds and encouragement.
Funders:
Funding AgencyGrant Number
NASANGR 22-024-001
NSFGP 7030
Record Number:CaltechAUTHORS:20190529-103831576
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190529-103831576
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95849
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:29 May 2019 21:45
Last Modified:03 Oct 2019 21:17

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