306 citations · 1.1k across the 36 of their papers we have counts for
6 papers · 1 filter
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…
Horizon-Penetrating Transonic Accretion Disks around Rotating Black Holes
Rohta Takahashi
The stationary hydrodynamic equations for the transonic accretion disks and flows around rotating black holes are presented by using the Kerr-Schild coordinate where there is no co…
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…