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Gravitational waves from spinning black hole-neutron star binaries: dependence on black hole spins and on neutron star equations of state
Koutarou Kyutoku, Hirotada Okawa, Masaru Shibata +1
We study the merger of black hole (BH)-neutron star (NS) binaries with a variety of BH spins aligned or anti-aligned with the orbital angular momentum, and with the mass ratio in t…
Binary Neutron Star Mergers: Dependence on the Nuclear Equation of State
Kenta Hotokezaka, Koutarou Kyutoku, Hirotada Okawa +2
We perform a numerical-relativity simulation for the merger of binary neutron stars with 6 nuclear-theory-based equations of state (EOSs) described by piecewise polytropes. Our pur…
Is super-Planckian physics visible? -- Scattering of black holes in 5 dimensions
Hirotada Okawa, Ken-ichi Nakao, Masaru Shibata
It may be widely believed that probing short-distance physics is limited by the presence of the Planck energy scale above which scale any information is cloaked behind a horizon. I…