We have studied detailed nucleosynthesis in the shocked surface layers of an Oxygen-Neon-Magnesium core collapse supernova with an eye to determining if the conditions are suitable for r process nucleosynthesis. We find no such conditions in an unmodified model, but do find overproduction of N=50 nuclei (previously seen in early neutron-rich neutrino winds) in amounts that, if ejected, would pose serious problems for galactic chemical evolution.
@article{arxiv.0712.4257,
title = {Nucleosynthesis in O-Ne-Mg Supernovae},
author = {R. D. Hoffman and B. Muller and H. -T. Janka},
journal= {arXiv preprint arXiv:0712.4257},
year = {2009}
}
Comments
12 pages, 1 figure, to be published in Astrophysical Journal Letters