Other
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phdt.........3m&link_type=abstract
Ph.D. Thesis Rice Univ., Houston, TX.
Other
3
Chemical Evolution, Evolution (Development), Heterogeneity, Nuclear Fusion, Solar System, Supernovae, Aluminum, Chemical Reactions, Dynamic Models, Galactic Evolution, Hydrodynamics, Shock Waves, Stellar Evolution, Stellar Models
Scientific paper
A model for the nucleosynthetic yields or 20 less than or equal to A less than or equal to 30 from a massive supernova (spectral class O or B on the main sequence) is developed and compared with the requirements of a hypothetical trigger for solar system formation. A static network simulates the presupernova nuclear evolution of the neon- and carbon-bearing zones of a 24 Msun star. The peak burning conditions for explosive nucleosynthesis from shock passage are obtained. Comparisons are made with similarity solutions and results of hydrodynamic calculations of shock passage. Except for Al-26 the products of static carbon burning dominate abundance patterns in the ejecta. Both explosive carbon burning and explosive neon burning contribute significantly to Al-26 production. Free neutron levels in this part of the supernova may allow synthesis of K-40, Pd-107, I-129 and possibly other rare, heavy nuclei in interesting amounts.
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