Numerical simulations of gravitational collapse of the massive stellar core

2014 Fiscal Year Final Research Report

• Project/Area Number: 24740163
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kyoto University
• Principal Investigator: KIUCHI Kenta 京都大学, 基礎物理学研究所, 研究員 (40514196)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 重力波 / 中性子星 / ガンマ線バースト

Outline of Final Research Achievements

We have constructed a numerical relativity code in which the Einstein solver, the nuclear equation of states, the magnetohydrodynamics, and neutrino radiation transport are implemented in self-consistent way. Specifically, we developed a numerical relativity-magnetohydrodynamics code and numerical relativity-neutrino radiation transport code. Because we have realized a much finer resolution than that we set when we started this program is necessary, we shift to a project of compact binary merger simulations. In this case, the timescale is shorter than that for the gravitational collapse of the massive stellar core and it is feasible to obtain a scientific result with the current affordable computational resources.
We have revealed the magnetic-field amplification, the magnetohydrodinamical turbulence, and the effect of neutrino radiation in compact binary mergers.

Free Research Field

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