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The nu-processAs the core of a massive star collapses to form a neutron star, the flux of neutrinos in the overlying shells of heavy elements becomes so great that, despite the small cross section, substantial nuclear transmutation is induced. Neutrinos excite heavy elements and even helium to particle unbound levels. The evaporation of a single neutron or proton, and the back reaction of these nucleons on other species present, significantly alters the outcome of traditional nucleosynthesis calculations leading to a new process: nu-nucleosynthesis. Modifications to traditional hydrostatic and explosive varieties of helium, carbon, neon, oxygen, and silicon burning are considered. The results show that a large number of rare isotopes, including many of the odd-Z nuclei from boron through copper, owe much of their present abundance in nature to this process.
Document ID
19900049601
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Woosley, S. E.
(Lick Observatory Santa Cruz, CA, United States)
Hartmann, D. H.
(Lick Observatory, Santa Cruz; Lawrence Livermore National Laboratory, Livermore CA, United States)
Hoffman, R. D.
(San Francisco State University CA, United States)
Haxton, W. C.
(Washington, University Seattle, United States)
Date Acquired
August 14, 2013
Publication Date
June 10, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 356
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A36656
Funding Number(s)
CONTRACT_GRANT: NSF AST-88-13649
CONTRACT_GRANT: NAGW-1273
CONTRACT_GRANT: W-7405-ENG-48
Distribution Limits
Public
Copyright
Other

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