The Influence of Reaction Rates on the Final p-Abundances

Details The Influence of Reaction Rates on the Final p-Abundances The Influence of Reaction Rates on the Final p-Abundances

2004-08-03

arxiv.org/abs/astro-ph/0408060v1

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

10.1016/j.nuclphysa.2005.05.099

The astrophysical p-process is responsible for the origin of the proton rich nuclei,which are heavier than iron. A huge network involving thousands of reaction rates is necessary to calculate the final p-abundances. But not all rates included in the network have a strong influence on the p-nuclei abundances. The p-process was investigated using a full nuclear reaction network for a type II supernovae explosion when the shock front passes through the O/Ne layer. Calculations were done with a multi-layer model adopting the seed of a pre-explosion evolution of a 25 mass star. In extensive simulations we investigated the impact of single reaction rates on the final p-abundances. The results are important for the strategy of future experiments in this field.

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