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

ASJC Scopus subject areas

  • General

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    Rockefeller, G., Fryer, C. L., 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