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The evolution of galaxies. III - Metal-enhanced star formationThe problem of the paucity of low-metal-abundance low-mass stars is discussed. One alternative to the variable-initial-mass-function (VIMF) solution is proposed. It is shown that this solution - metal-enhanced star formation - satisfies the classical test which prompted the VIMF hypothesis. Furthermore, with no additional parameters it provides improved fits to other tests - e.g., inhomogeneities in the abundances in young stars, concordance of all nucleo-cosmochronologies, and a required yield of heavy-element production which is consistent with current stellar evolution theory. In this model the age of the Galaxy is 18.6 plus or minus 5.7 b.y.
Document ID
19740030819
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Talbot, R. J., Jr.
(Rice University Houston, Tex., United States)
Arnett, W. D.
(Texas, University Austin, Tex., United States)
Date Acquired
August 7, 2013
Publication Date
November 15, 1973
Publication Information
Publication: Astrophysical Journal
Volume: 186
Subject Category
Space Sciences
Accession Number
74A13569
Funding Number(s)
CONTRACT_GRANT: NSF GP-32051
CONTRACT_GRANT: NSF GP-18355
CONTRACT_GRANT: NGL-44-006-013
Distribution Limits
Public
Copyright
Other

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