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Evolution of stars with suppressed core convectionStellar evolution on the upper main sequence was computed for models of stars with cores assumed to be in radiative equilibrium, up to the point of central helium ignition. The role of the Schonberg-Chandrasekhar limit for an isothermal core is found to be critical for the evolutionary tracks. Observational data are used to rule out the hypothesis of evolution with radiative cores (in upper main-sequence stars) and, by implication, of magnetic fields that are sufficiently strong to have suppressed the core convention.
Document ID
19730009119
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Stothers, R. B.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Chin, C.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1972
Subject Category
Space Sciences
Report/Patent Number
NASA-TM-X-68944
Accession Number
73N17846
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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