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Rockefeller, G, Fryer, CL, Young, P, Bennett, M, Diehl, S, Herwig, F, Hirschi, R, Hungerford, A, Pignatari, M, Magkotsios, G and Timmes, FX (2008) Nucleosynthetic Yields from "Collapsars". In: 10th Symposium on Nuclei in the Cosmos, 27 Jul - 1 Aug 2008, Mackinac Island, Michigan, USA.
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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 nucleosynthetic 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.
Item Type: | Conference or Workshop Item (Paper) |
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
Divisions: | Faculty of Natural Sciences > School of Physical and Geographical Sciences |
Related URLs: | |
Depositing User: | Symplectic |
Date Deposited: | 15 Jul 2015 14:08 |
Last Modified: | 15 Jul 2015 14:08 |
URI: | https://eprints.keele.ac.uk/id/eprint/732 |