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Quantitative results of stellar evolution and pulsation theories.The discrepancy between the masses of Cepheid variables deduced from evolution theory and pulsation theory is examined. The effect of input physics on evolutionary tracks is first discussed; in particular, changes in the opacity are considered. The sensitivity of pulsation masses to opacity changes and to the ascribed values of luminosity and effective temperature are then analyzed. The Cepheid mass discrepancy is discussed in the light of the results already obtained. Other astronomical evidence, including the mass-luminosity relation for main sequence stars, the solar neutrino flux, and cluster ages are also considered in an attempt to determine the most likely source of error in the event that substantial mass loss has not occurred.
Document ID
19720027462
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fricke, K.
Stobie, R. S.
(Cambridge University Cambridge, United Kingdom)
Strittmatter, P. A.
(Cambridge University Cambridge, England; California, University, San Diego, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Publication Information
Publication: Royal Astronomical Society
Subject Category
Space Sciences
Accession Number
72A11128
Funding Number(s)
CONTRACT_GRANT: NGL-05-005-004
Distribution Limits
Public
Copyright
Other

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