Abstract
We review some of the uncertainties in calculating nucleosynthetic yields, focusing on the explosion mechanism. Current yield calculations tend to either use a piston, energy injection, or enhancement of neutrino opacities to drive an explosion. We show that the energy injection, or more accurately, an entropy injection mechanism is best-suited to mimic our current understanding of the convection-enhanced supernova engine. The enhanced neutrino-opacity technique is in qualitative disagreement with simulations of core-collapse supernovae and will likely produce errors in the yields. But piston-driven explosions are the most discrepant. Piston-driven explosion severely underestimate the amount of fallback, leading to order-of-magnitude errors in the yields of heavy elements. To obtain yields accurate to the factor of a few level, we must use entropy or energy injection and this has become the NuGrid collaboration approach.
Original language | English (US) |
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Title of host publication | Proceedings of Science |
State | Published - 2008 |
Event | 10th Symposium on Nuclei in the Cosmos, NIC 2008 - Mackinac Island, MI, United States Duration: Jul 27 2008 → Aug 1 2008 |
Other
Other | 10th Symposium on Nuclei in the Cosmos, NIC 2008 |
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Country/Territory | United States |
City | Mackinac Island, MI |
Period | 7/27/08 → 8/1/08 |
ASJC Scopus subject areas
- General