53 citations · 176 across the 6 of their papers we have counts for
6 papers
Photospheric emission from stratified jets
Hirotaka Ito, Shigehiro Nagataki, Masaomi Ono +6
We explore photospheric emissions from stratified two-component jets, wherein a highly relativistic spine outflow is surrounded by a wider and less relativistic sheath outflow. The…
Gravitational Wave Signatures of Hyperaccreting Collapsar Disks
Kei Kotake, Tomoya Takiwaki, Seiji Harikae
By performing two-dimensional special relativistic (SR) magnetohydrodynamic simulations, we study possible signatures of gravitational waves (GWs) in the context of the collapsar m…
General Relativistic Ray-Tracing Method for Estimating the Energy and Momentum Deposition by Neutrino Pair Annihilation in Collapsars
Seiji Harikae, Kei Kotake, Tomoya Takiwaki +1
Bearing in mind the application to the collapsar models of gamma-ray bursts (GRBs), we develop a numerical scheme and code for estimating the deposition of energy and momentum due…
Long-Term Evolution of Collapsar: Mechanism of Outflow Production
Seiji Harikae, Tomoya Takiwaki, Kei Kotake
We present our numerical results of two-dimensional hydrodynamic (HD) simulations and magnetohydrodynamic (MHD) simulations of the collapse of rotating massive stars in light of th…
Neutrino Pair Annihilation in Collapsars; Ray-Tracing Method in Special Relativity
Seiji Harikae, Kei Kotake, Tomoya Takiwaki
We develop a numerical scheme and code for estimating the energy and momentum transfer via neutrino pair annihilation (), bearing in mind the applicat…
Long-Term Evolution of Slowly Rotating Collapsar in Special Relativistic Magnetohydrodynamics
Seiji Harikae, Tomoya Takiwaki, Kei Kotake
We present our numerical results of two-dimensional magnetohydrodynamic (MHD) simulations of the collapse of rotating massive stars in light of the collapsar model of gamma-ray bur…