Implications of low-energy fusion hindrance on stellar burning and nucleosynthesis
We investigate the consequences of a new phenomenological model prediction of strongly reduced low-energy astrophysical S-factors for carbon and oxygen fusion reactions on stellar burning and nucleosynthesis. The new model drastically reduces the reaction rates in stellar matter at temperatures Tâ‰(3-10)Ã 108 K, especially at densities Ïâ‰109 g cm-3, in a strongly screened or even pycnonuclear burning regime. We show that these modifications change the abundance of many isotopes in massive...[Show more]
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|Source:||Physical Review C: Nuclear Physics|
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