Other
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008fpnr.conf....3w&link_type=abstract
FISSION AND PROPERTIES OF NEUTRON-RICH NUCLEI. Proceedings of the Fourth International Conference. Held 11-17 November 2007 in S
Other
Scientific paper
We know two kind of stellar explosion events; shock induced explosions of core collapsing massive stars known as type II supernovae, and accretion induced thermonuclear explosions such as type Ia supernovae, X-ray bursts, and novae in accreting binary systems. The type II supernova shock front causes rapid increase of density and temperature conditions in the stellar material initiating fast neutron or gamma induced nucleosynthesis processes such as the r-process and the p-process which contribute to the heavy element abundance distribution in our universe. Thermonuclear stellar explosions on the other hand are driven by nuclear ignition of dense stellar material at highly electron degenerate conditions. The ignition conditions are defined by the reaction rates of heavy ion fusion processes of stellar core material for type Ia supernovae, or by rapid nuclear fusion processes such as the hot CNO cycles or the rp-process in the stellar atmosphere of freshly accreted matter. This paper will provide a summary of the nucleosynthesis signatures of the rapid nucleosynthesis processes in stellar explosions and will highlight their impact on the associated energy release and the production of heavy elements as observed in our galaxy.
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