Nucleosynthetic Yields from "Collapsars"

Gabriel Rockefeller, Christopher L. Fryer, Patrick Young, Michael Bennett, Steven Diehl, Falk Herwig, Raphael Hirschi, Aimee Hungerford, Marco Pignatari, Georgios Magkotsios, Francis Timmes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish (US)
Title of host publicationProceedings of Science
StatePublished - 2008
Event10th Symposium on Nuclei in the Cosmos, NIC 2008 - Mackinac Island, MI, United States
Duration: Jul 27 2008Aug 1 2008

Other

Other10th Symposium on Nuclei in the Cosmos, NIC 2008
CountryUnited States
CityMackinac Island, MI
Period7/27/088/1/08

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explosions
energy sources
massive stars
nuclear fusion
gamma ray bursts
supernovae
engines
simulation

ASJC Scopus subject areas

  • General

Cite this

Rockefeller, G., Fryer, C. L., Young, P., Bennett, M., Diehl, S., Herwig, F., ... Timmes, F. (2008). Nucleosynthetic Yields from "Collapsars". In Proceedings of Science

Nucleosynthetic Yields from "Collapsars". / Rockefeller, Gabriel; Fryer, Christopher L.; Young, Patrick; Bennett, Michael; Diehl, Steven; Herwig, Falk; Hirschi, Raphael; Hungerford, Aimee; Pignatari, Marco; Magkotsios, Georgios; Timmes, Francis.

Proceedings of Science. 2008.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rockefeller, G, Fryer, CL, Young, P, Bennett, M, Diehl, S, Herwig, F, Hirschi, R, Hungerford, A, Pignatari, M, Magkotsios, G & Timmes, F 2008, Nucleosynthetic Yields from "Collapsars". in Proceedings of Science. 10th Symposium on Nuclei in the Cosmos, NIC 2008, Mackinac Island, MI, United States, 7/27/08.
Rockefeller G, Fryer CL, Young P, Bennett M, Diehl S, Herwig F et al. Nucleosynthetic Yields from "Collapsars". In Proceedings of Science. 2008
Rockefeller, Gabriel ; Fryer, Christopher L. ; Young, Patrick ; Bennett, Michael ; Diehl, Steven ; Herwig, Falk ; Hirschi, Raphael ; Hungerford, Aimee ; Pignatari, Marco ; Magkotsios, Georgios ; Timmes, Francis. / Nucleosynthetic Yields from "Collapsars". Proceedings of Science. 2008.
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AU - Hirschi, Raphael

AU - Hungerford, Aimee

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