Abstract
The "collapsar" engine for gamma-ray bursts invokes as its energy source the failure of a normal supernova and the formation of a black hole. Here we present the results of the first three-dimensional simulation of the collapse of a massive star down to a black hole, including the subsequent accretion and explosion. The explosion differs significantly from the axisymmetric scenario obtained in two-dimensional simulations; this has important consequences for the nu-cleosynthetic yields. We compare the nucleosynthetic yields to those of hypernovae. Calculating yields from three-dimensional explosions requires new strategies in post-process nucleosynthesis; we discuss NuGrid's plan for three-dimensional yields. (c) Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
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