280 citations · 3.8k across the 90 of their papers we have counts for
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Jet propagations, breakouts and photospheric emissions in collapsing massive progenitors of long duration gamma ray bursts
Hiroki Nagakura, Hirotaka Ito, Kenta Kiuchi +1
We investigate by two-dimensional axisymmetric relativistic hydrodynamical simulations (1) jet propagations through an envelope of a rapidly rotating and collapsing massive star, w…
Multi-layered configurations in differentially-rotational equilibrium
Kenta Kiuchi, Hiroki Nagakura, Shoichi Yamada
We present a new formula to numerically construct configurations in rotational equilibrium, which consist of multiple layers. Each layer rotates uniformly or differentially accordi…
Relativistic Dissipative Accretion Flow onto Black Hole
Hiromi Saida, Rohta Takahashi, Hiroki Nagakura
Dissipations, e.g. heat flow and bulk and shear viscosities, cause the transport of energy, momentum and angular momentum, which is the essence of accretion of matters onto celesti…
Direct time radio variability induced by non-axisymmetric standing accretion shock instability: implications for M87
Hiroki Nagakura, Rohta Takahashi
We show for the first time the direct time variable radio images in the context of shocked accretion flows around a black hole under the general relativistic treatment of both hydr…