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Prospects of the local Hubble parameter measurement using gravitational waves from double neutron stars
Naoki Seto, Koutarou Kyutoku
Following the detection of the GW170817 signal and its associated electromagnetic emissions, we discuss the prospects of the local Hubble parameter measurement using double neutron…
Modeling GW170817 based on numerical relativity and its implications
Masaru Shibata, Sho Fujibayashi, Kenta Hotokezaka +4
Gravitational-wave observation together with a large number of electromagnetic observations shows that the source of the latest gravitational-wave event, GW170817, detected primari…
Detectability of thermal neutrinos from binary-neutron-star mergers and implication to neutrino physics
Koutarou Kyutoku, Kazumi Kashiyama
We propose a long-term strategy for detecting thermal neutrinos from the remnant of binary-neutron-star mergers with a future M-ton water-Cherenkov detector such as Hyper-Kamiokand…
Global simulations of strongly magnetized remnant massive neutron stars formed in binary neutron star mergers
Kenta Kiuchi, Koutarou Kyutoku, Yuichiro Sekiguchi +1
We perform a general-relativistic magnetohydrodynamics simulation for ms after merger of a binary neutron star to a remnant massive neutron star (RMNS) with a high spa…
Neutrino transport in black hole-neutron star binaries: neutrino emission and dynamical mass ejection
Koutarou Kyutoku, Kenta Kiuchi, Yuichiro Sekiguchi +2
We study the merger of black hole-neutron star binaries by fully general-relativistic neutrino-radiation-hydrodynamics simulations throughout the coalescence, particularly focusing…
Extracting the cutoff frequency in the gravitational-wave spectrum of black hole-neutron star mergers
Kyohei Kawaguchi, Koutarou Kyutoku, Hiroyuki Nakano +1
The location of the cutoff in the gravitational-wave spectrum of black hole-neutron star mergers is correlated strongly with the neutron-star radius for the case that the neutron s…