624 citations · 2.8k across the 21 of their papers we have counts for
21 papers
Constraining self-interactions of a massive scalar field using scalar gravitational waves from stellar core collapse
Naomichi Asakawa, Yuichiro Sekiguchi
We perform a comprehensive numerical study of gravitational waves from stellar core collapse in the massive scalar-tensor theory with the cubic and quartic self-interactions of the…
Properties of Neutrino-driven Ejecta from the Remnant of Binary Neutron Star Merger : Purely Radiation Hydrodynamics Case
Sho Fujibayashi, Yuichiro Sekiguchi, Kenta Kiuchi +1
We performed general relativistic, long-term, axisymmetric neutrino radiation hydrodynamics simulations for the remnant formed after the binary neutron star merger, which consist o…
Gravitational waves from supermassive stars collapsing to a supermassive black hole
Masaru Shibata, Yuichiro Sekiguchi, Haruki Uchida +1
We derive the gravitational waveform from the collapse of a rapidly rotating supermassive star (SMS) core leading directly to a seed of a supermassive black hole (SMBH) in axisymme…
Dynamical mass ejection from the merger of asymmetric binary neutron stars: Radiation-hydrodynamics study in general relativity
Yuichiro Sekiguchi, Kenta Kiuchi, Koutarou Kyutoku +2
We perform neutrino radiation-hydrodynamics simulations for the merger of asymmetric binary neutron stars in numerical relativity. Neutron stars are modeled by soft and moderately…
High-resolution magnetohydrodynamics simulation of black hole-neutron star merger: Mass ejection and short gamma-ray burst
Kenta Kiuchi, Yuichiro Sekiguchi, Koutarou Kyutoku +3
We report results of a high-resolution numerical-relativity simulation for the merger of black hole-magnetized neutron star binaries on Japanese supercomputer "K". We focus on a bi…
The dynamical mass ejection from binary neutron star mergers: Radiation-hydrodynamics study in general relativity
Yuichiro Sekiguchi, Kenta Kiuchi, Koutarou Kyutoku +1
We perform radiation-hydrodynamics simulations of binary neutron star mergers in numerical relativity on the Japanese "K" supercomputer, taking into account neutrino cooling and he…