92 citations · 252 across the 9 of their papers we have counts for
8 papers · 1 filter
An Approach Detecting the Event Horizon of Sgr A*
Makoto Miyoshi, Seiji Kameno, Jose K. Ishituka +3
Imaging the vicinity of a black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, Sgr A*, located at the Galactic center, is the leading candidat…
Radiation Hydrodynamics in Kerr Spacetime: Equations without Coordinate Singularity at the Event Horizon
Rohta Takahashi
Equations of fully general relativistic radiation hydrodynamics around a rotating black hole are derived by using the Kerr-Schild coordinate where there is no coordinate singularit…
Magnetohydrodynamics of Neutrino-Cooled Accretion Tori around a Rotating Black Hole in General Relativity
M. Shibata, Y. Sekiguchi, R. Takahashi
We present our first numerical results of axisymmetric magnetohydrodynamic simulations for neutrino-cooled accretion tori around rotating black holes in general relativity. We cons…
Equations of general relativistic radiation hydrodynamics in Kerr space-time
Rohta Takahashi
Equations of fully general relativistic radiation hydrodynamics in Kerr space-time are derived. While the interactions between matter and radiation are introduced in the comoving f…
Advection-dominated accretion flows with causal viscosity
Rohta Takahashi
We present the basic equations and sample solutions for the steady-state global transonic solutions of the advection-dominated accretion flows (ADAFs) with a causal viscosity presc…
Eclipsing light curves for accretion flows around a rotating black hole and atmospheric effects of the companion star
Rohta Takahashi, Ken-Ya Watarai
We calculate eclipsing light curves for accretion flows around a rotating black hole taking into account the atmospheric effects of the companion star. In the cases of no atmospher…