The Importance of Electron Captures in Core-Collapse Supernovae

Details The Importance of Electron Captures in Core-Collapse Supernovae The Importance of Electron Captures in Core-Collapse Supernovae

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004acppb..35.1191l&link_type=abstract

Acta Physica Polonica B, vol. 35, Issue 3, p.1191

Physics

Nuclear Physics

Scientific paper

Nuclear physics plays an essential role in the dynamics of a type II supernova (a collapsing star). Recent advances in nuclear many-body theory allow now to reliably calculate the stellar weak-interaction processes involving nuclei. The most important process is the electron capture on finite nuclei with mass numbers A>55. It is found that the respective capture rates, derived from modern many-body models, differ noticeably from previous, more phenomenological estimates. This leads to significant changes in the stellar trajectory during the supernova explosion, as has been found in state-of-the-art supernova simulations.

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