Nucleosynthesis Calculations from Core-Collapse Supernovae Export

@article{citeulike:3735769, 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.}, archivePrefix = {arXiv}, author = {Fryer, Christopher L. and Young, Patrick and Bennett, Michael and Diehl, Steven and Herwig, Falk and Hirschi, Raphael and Hungerford, Aimee and Pignatari, Marco and Magkotsios, Georgios and Rockefeller, Gabriel and Timmes, Francis X.}, citeulike-article-id = {3735769}, citeulike-linkout-0 = {http://arxiv.org/abs/0811.4648}, citeulike-linkout-1 = {http://arxiv.org/pdf/0811.4648}, day = {28}, eprint = {0811.4648}, keywords = {3d, core-collapse, nucleosynthesis, supernovae}, month = {Nov}, posted-at = {2008-12-02 15:22:08}, priority = {2}, title = {Nucleosynthesis Calculations from Core-Collapse Supernovae}, url = {http://arxiv.org/abs/0811.4648}, year = {2008} }

TY - JOUR ID - citeulike:3735769 L3 - citeulike-article-id:3735769 N2 - 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. TI - Nucleosynthesis Calculations from Core-Collapse Supernovae KW - 3d KW - core-collapse KW - nucleosynthesis KW - supernovae AU - Fryer, Christopher AU - Young, Patrick AU - Bennett, Michael AU - Diehl, Steven AU - Herwig, Falk AU - Hirschi, Raphael AU - Hungerford, Aimee AU - Pignatari, Marco AU - Magkotsios, Georgios AU - Rockefeller, Gabriel AU - Timmes, Francis PY - 2008/Nov/28/ UR - http://arxiv.org/abs/0811.4648 ER -