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.

[thumbnail of 0811.4650v1.pdf]
0811.4650v1.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (144kB) | Preview


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)
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

Actions (login required)

View Item
View Item