Multi-dimensional Core-Collapse Supernova Simulations with Neutrino Transport

Pan, Kuo-Chuan and Liebendörfer, Matthias and Hempel, Matthias and Thielemann, Friedrich-Karl. (2017) Multi-dimensional Core-Collapse Supernova Simulations with Neutrino Transport. In: Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016), 14.

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Official URL: http://edoc.unibas.ch/58116/

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We present multi-dimensional core-collapse supernova simulations using the Isotropic Diffusion Source Approximation (IDSA) for the neutrino transport and a modified potential for general relativity in two different supernova codes: FLASH and ELEPHANT. Due to the complexity of the core-collapse supernova explosion mechanism, simulations require not only high-performance computers and the exploitation of GPUs, but also sophisticated approximations to capture the essential microphysics. We demonstrate that the IDSA is an elegant and efficient neutrino radiation transfer scheme, which is portable to multiple hydrodynamics codes and fast enough to investigate long-term evolutions in two and three dimensions. Simulations with a 40 solar mass progenitor are presented in both FLASH (1D and 2D) and ELEPHANT (3D) as an extreme test condition. It is found that the black hole formation time is delayed in multiple dimensions and we argue that the strong standing accretion shock instability before black hole formation will lead to strong gravitational waves.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Astrophysik (Liebendörfer)
05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Hempel, Matthias
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Publisher:Physical Society of Japan
Series Name:JPS Conference Proceedings
Note:Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:12 Mar 2018 11:54
Deposited On:28 Dec 2017 08:18

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