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Implications of low-energy fusion hindrance on stellar burning and nucleosynthesis

Gasques , Leandro; Brown, E.F.; Chieffi, A.; Jiang, C L; Limongi, M.; Rolfs, C.; Wiescher, M.; Yakovlev, D G


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)à 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]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Physical Review C: Nuclear Physics
DOI: 10.1103/PhysRevC.76.035802


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