2000/05/25 by V. Costa, M. Rayet, Costa, V. +5 · 1 citation
Physics and Astronomy · #Astro and Planetary Science #Astronomical and nuclear sciences #Astrophysics (astro-ph) #FOS: Physical sciences #Nuclear physics research studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0005513
4 pages, 4 figures. LaTex2e with aa.cls. A&A Letters, in press
arxiv created 2000/05/25 · openalex publication_date 2000/05/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The most detailed calculations of the p-process call for its development in the O/Ne layers of Type II supernovae. In spite of their overall success in reproducing the solar system content of p-nuclides, they suggest a significant underproduction of the light Mo and Ru isotopes. On grounds of a model for the explosion of a 25 solar mass star with solar metallicity, we demonstrate that this failure might just be related to the uncertainties left in the rate of the 22Ne(alpha,n)25Mg neutron producing reaction. The latter indeed have a direct impact on the distribution of the s-process seeds for the p-process.