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Isotopic anomalies from neutron reactions during explosive carbon burningThe heavy isotopic anomalies observed recently in the fractionation and unknown nuclear inclusions from the Allende meteorite are explained by neutron reactions during the explosive carbon burning (ECB). This model produces heavy anomalies in the same zone where Al-26 and O-16 are produced, thus reducing the number of source zones required for the isotopic anomalies. Unlike the classical r-process, the ECB n-process avoids the problem with the Sr anomaly and may resolve the problem of conflicting time scales between Al-26 and the r-process isotopes I-129 and Pu-244. Experimental studies of Zr and Ce isotopic composition are proposed to test this model.
Document ID
19800054398
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lee, T.
(Chicago Univ. Chicago, IL, United States)
Schramm, D. N.
(Chicago Univ. Chicago, IL, United States)
Wefel, J. P.
(Chicago, University Chicago, Ill., United States)
Blake, J. B.
(Aerospace Corp. Space Sciences Laboratory, Los Angeles, Calif., United States)
Date Acquired
August 10, 2013
Publication Date
September 15, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
80A38568
Funding Number(s)
CONTRACT_GRANT: NAS5-11067
CONTRACT_GRANT: NSG-7212
CONTRACT_GRANT: NGL-14-001-006
Distribution Limits
Public
Copyright
Other

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