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arXiv · 1002.2788

The effect of 12C + 12C rate uncertainties on s-process yields

M E Bennett·R Hirschi·M Pignatari·S Diehl·C Fryer·F Herwig·A Hungerford·G Magkotsios·G Rockefeller·F Timmes·M Wiescher·P Young
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Abstract

The slow neutron capture process in massive stars (the weak s-process) produces most of the s-only isotopes in the mass region 60 < A < 90. The nuclear reaction rates used in simulations of this process have a profound effect on the final s-process yields. We generated 1D stellar models of a 25 solar mass star varying the 12C + 12C rate by a factor of 10 and calculated full nucleosynthesis using the post-processing code PPN. Increasing or decreasing the rate by a factor of 10 affects the convective history and nucleosynthesis, and consequently the final yields.

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M E Bennett, R Hirschi, M Pignatari, S Diehl, C Fryer, F Herwig, A Hungerford, G Magkotsios, G Rockefeller, F Timmes, M Wiescher, P Young. 2010-02-15. The effect of 12C + 12C rate uncertainties on s-process yields. https://doi.org/10.1088/1742-6596/202/1/012023

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