166 citations · 782 across the 15 of their papers we have counts for
15 papers
Quadratic conservative scheme for relativistic Vlasov--Maxwell system
Takashi Shiroto, Naofumi Ohnishi, Yasuhiko Sentoku
For more than half a century, most of the plasma scientists have encountered a violation of the conservation laws of charge, momentum, and energy whenever they have numerically sol…
Validation of Radiative Transfer Computation with Monte Carlo Method for Ultra-Relativistic Background Flow
Ayako Ishii, Naofumi Ohnishi, Hiroki Nagakura +2
We developed a three-dimensional radiative transfer code for an ultra-relativistic background flow-field by using the Monte Carlo (MC) method in the context of gamma-ray burst (GRB…
Structure-preserving operators for thermal-nonequilibrium hydrodynamics
Takashi Shiroto, Soshi Kawai, Naofumi Ohnishi
Radiation hydrodynamics simulations based on the one-fluid two-temperature model may violate the law of energy conservation because the governing equations are expressed in a nonco…
Explosive nucleosynthesis in the neutrino-driven aspherical supernova explosion of a non-rotating 15 star with solar metallicity
Shin-ichiro Fujimoto, Kei Kotake, Masa-aki Hashimoto +2
We investigate explosive nucleosynthesis in a non-rotating 15 star with solar metallicity that explodes by a neutrino-heating supernova (SN) mechanism aided by both standi…
Effects of Rotation on Stochasticity of Gravitational Waves in Nonlinear Phase of Core-Collapse Supernovae
Kei Kotake, Wakana Iwakami Nakano, Naofumi Ohnishi
By performing three-dimensional (3D) simulations that demonstrate the neutrino-driven core-collapse supernovae aided by the standing accretion shock instability (SASI), we study ho…
Ray-Tracing Analysis of Anisotropic Neutrino Radiation for Estimating Gravitational Waves in Core-Collapse Supernovae
Kei Kotake, Wakana Iwakami, Naofumi Ohnishi +1
We propose a ray-tracing method to estimate gravitational waves (GWs) generated by anisotropic neutrino emission in supernova cores. To calculate the gravitational waveforms, we de…