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An independent method for determining the age of the universeAn age of 9.3 + or - 2.0 Gyr is derived for the Galactic disk on the basis of comparisons between the sudden drop in the observed luminosity distribution and theoretical evolutionary white dwarf models and allowance for a mean prewhite-dwarf lifetime of 0.3 Gyr. To obtain the age of the universe, the time between the big bang and the first appearance of stars in the Galactic disk is added. The age of the universe is estimated to be 10.3 + or - 2.2 Gyr.
Document ID
19870062207
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/184864
Authors
Winget, D. E. (Texas, University Austin, United States)
Hansen, C. J. (Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Liebert, James (Arizona, University Tucson, United States)
Van Horn, H. M. (Rochester, University NY, United States)
Fontaine, G. (Montreal, Universite Canada)
Date Acquired
August 13, 2013
Publication Date
April 15, 1987
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 315
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
87A49481
Funding Number(s)
CONTRACT_GRANT: NAGW-830
CONTRACT_GRANT: NSF AST-83-15698
CONTRACT_GRANT: NSF AST-86-00507
CONTRACT_GRANT: NSF AST-85-15489
CONTRACT_GRANT: NSF AST-85-52457
CONTRACT_GRANT: NSF AST-85-11173
Distribution Limits
Public
Copyright
Other

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