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Efficient approximations of neutrino physics for three-dimensional simulations of stellar core collapse

Liebendörfer, Matthias and Pen, Ue-Li and Thompson, Christopher. (2006) Efficient approximations of neutrino physics for three-dimensional simulations of stellar core collapse. In: International symposium on nuclear astrophysics - Nuclei in the cosmos. Trieste, Italy, p. 132.

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Official URL: http://edoc.unibas.ch/dok/A5253795

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Abstract

Neutrino transport in spherically symmetric models of stellar core collapse and bounce has achieved a technically complete level, rewarded by the agreement among independent groups that a multi-dimensional treatment of the fluid-instabilities in the post-bounce phase is indis- pensable to model supernova explosions. While much effort is required to develop a reliable neutrino transport technique in axisymmetry, we explore neutrino physics approximations and parameterizations for an efficient three-dimensional simulation of the fluid-instabilities in the shock-heated matter that accumulates between the accretion shock and the protoneutron star. We demonstrate the reliability of a simple parameterization scheme in the collapse phase and extend our 3D magneto-hydrodynamical collapse simulations to a preliminary postbounce evolution. The growth of magnetic fields is investigated.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Astrophysik (Liebendörfer)
UniBasel Contributors:Liebendörfer, Matthias
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Bibsysno:Link to catalogue
Publisher:Proceedings of Science
Note:Publication type according to Uni Basel Research Database: Conference paper
Last Modified:14 Sep 2012 07:07
Deposited On:22 Mar 2012 13:56

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