Gravitational waves and neutrino emission from the merger of binary neutron stars |
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Authors: | Sekiguchi Yuichiro Kiuchi Kenta Kyutoku Koutarou Shibata Masaru |
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Affiliation: | Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan. |
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Abstract: | Numerical simulations for the merger of binary neutron stars are performed in full general relativity incorporating a finite-temperature (Shen's) equation of state (EOS) and neutrino cooling for the first time. It is found that for this stiff EOS, a hypermassive neutron star (HMNS) with a long lifetime (?10 ms) is the outcome for the total mass ?3.0M(⊙). It is shown that the typical total neutrino luminosity of the HMNS is ~3-8×10(53) erg/s and the effective amplitude of gravitational waves from the HMNS is 4-6×10(-22) at f=2.1-2.5 kHz for a source distance of 100 Mpc. We also present the neutrino luminosity curve when a black hole is formed for the first time. |
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