We study the s-process abundances at the epoch of the Solar-system formation as the outcome of nucleosynthesis occurring in AGB stars of various masses and metallicities. The calculations have been performed with the Galactic chemical evolution (GCE) model presented by Travaglio et al. (1999, 2004). With respect to previous works, we used updated solar meteoritic abundances, a neutron capture cross section network that includes the most recent measurements, and we implemented the s-process yields with an extended range of AGB initial masses. The new set of AGB yields includes a new evaluation of the 22Ne(alpha, n)25Mg rate, which takes into account the most recent experimental information.
@article{arxiv.1311.5381,
title = {AGB yields and Galactic Chemical Evolution: last updated},
author = {S. Bisterzo and C. Travaglio and M. Wiescher and R. Gallino and F. Kaeppeler and O. Straniero and S. Cristallo and G. Imbriani and J. Goerres and R. J. deBoer},
journal= {arXiv preprint arXiv:1311.5381},
year = {2013}
}
Comments
6 pages, 2 figures, NPA-VI Conference Proceeding, Nuclear Physics in Astrophysics VI, May 19-24, 2013, Lisbon, Portugal, Journal of Physics: Conference Series (JPCS), in press