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Paper: Magnetized Binary Neutron Star Merger Simulations
Volume: 474, Numerical Modeling of Space Plasma Flows (ASTRONUM2012)
Page: 84
Authors: Kiuchi, K.; Kyutoku, K.; Hotokezaka, K.; Sekiguchi, Y.; Shibata, M.
Abstract: We perform general relativistic magnetized binary neutron star (BNS) merger simulations. Our aim of this study is to explore a magnetic field amplification mechanism in BNS mergers and a final configuration of amplified magnetic field. Our main findings are that the magnetic field is amplified by the Kelvin Helmholtz instability at the merger and magneto rotational instability inside an accretion torus, which is formed after a remnant massive neutron star collapses to a black hole. The saturation energy of magnetic field is several percents of a kinetic energy of the accretion torus. Our result suggests that a long-term simulation with a high resolution is mandatory to explore the final state of magnetized BNS merger.
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