8 citations · 17 across the 11 of their papers we have counts for
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Survey of Non-thermal Electron around Supermassive Black Holes through Polarization Flips
Yuh Tsunetoe, Tomohisa Kawashima, Ken Ohsuga +1
Optically thick non-thermal synchrotron sources notably produce linear polarization vectors being parallel to projected magnetic field lines on the observer's screen, although they…
Radiation and outflow properties of super-Eddington accretion flows around various mass classes of black holes: Dependence on the accretion rates
Shogo Yoshioka, Shin Mineshige, Ken Ohsuga +2
We perform axisymmetric two-dimensional radiation-hydrodynamic simulations of super-Eddington accretion flow and outflow around black holes to examine the properties of radiation a…
Radiation MHD Simulations of Soft X-ray Emitting Regions in Changing Look AGN
Taichi Igarashi, Hiroyuki R. Takahashi, Tomohisa Kawashima +3
Strong soft X-ray emission called soft X-ray excess is often observed in luminous active galactic nuclei (AGN). It has been suggested that the soft X-rays are emitted from a warm (…
Black Hole Spacetime and Properties of Accretion Flows and Jets Probed by Black Hole Explorer: Science Cases Proposed by BHEX Japan Team
Tomohisa Kawashima, Yuh Tsunetoe, Ken Ohsuga +7
Black Hole Explorer (BHEX) is a space VLBI mission concept, which can probe the black hole spacetime and the plasma properties including the magnetic fields of the accretion flows…
The Japanese Vision for the Black Hole Explorer Mission
Kazunori Akiyama, Kotaro Niinuma, Kazuhiro Hada +43
The Black Hole Explorer (BHEX) is a next-generation space very long baseline interferometry (VLBI) mission concept that will extend the ground-based millimeter/submillimeter arrays…
A Relativistic Formula for the Multiple Scattering of Photons
Rohta Takahashi, Masayuki Umemura, Ken Ohsuga +6
We have discovered analytical expressions for the probability density function (PDF) of photons that are multiply scattered in relativistic flows, under the assumption of isotropic…