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Lee, T.; Schramm, D.N.; Wefel, J.P.; Blake, J.B.
Aerospace Corp., El Segundo, CA (USA). Space Sciences Lab1978
Aerospace Corp., El Segundo, CA (USA). Space Sciences Lab1978
AbstractAbstract
[en] The possibility that the newly discovered correlated isotopic anomalies for heavy elements in the Allende meteorite were synthesized in the secondary neutron capture episode during the explosive carbon burning, the possible source of the O-16 and Al-26 anomalies, is examined. Explosive carbon burning calculations under typical conditions were first performed to generate time profiles of temperature, density, and free particle concentrations. These quantities were inputted into a general neutron capture code which calculates the resulting isotopic pattern from exposing the preexisting heavy seed nuclei to these free particles during the explosive carbon burning conditions. The interpretation avoids the problem of the Sr isotopic data and may resolve the conflict between the time scales inferred from 1-129, Pu-244, and Al-26
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Source
31 Oct 1978; 27 p; Available from NTIS. PC A02/MF A01
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Report
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Country of publication
ALUMINIUM ISOTOPES, BARYON REACTIONS, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, EVEN-EVEN NUCLEI, HADRON REACTIONS, ISOTOPES, LIGHT NUCLEI, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, ODD-ODD NUCLEI, OXYGEN ISOTOPES, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, STABLE ISOTOPES, STAR BURNING, YEARS LIVING RADIOISOTOPES
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