activity
20162024
most citedA radiation-hydrodynamic model of accretion columns for ultra-luminous X-ray pulsars

45 citations · 70 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.HE2024

Impact of Ly radiation force on super-Eddington accretion onto a massive black hole

Takuya Mushano, Takumi Ogawa, Ken Ohsuga +2

The viability of super-Eddington accretion remains a topic of intense debate, crucial for understanding the formation of supermassive black holes in the early universe. However, th…

astro-ph.HE2022★ 4 cited

3D Photon Conserving Code for Time-dependent General Relativistic Radiative Transfer : CARTOON

Mikiya M. Takahashi, Ken Ohsuga, Rohta Takahashi +3

We develop the 3-dimensional general relativistic radiative transfer code: CARTOON (Calculation code of Authentic Radiative Transfer based On phOton Number conservation in curved s…

astro-ph.HE2021★ 8 cited

Matter density distribution of general relativistic highly magnetized jets driven by black holes

Taiki Ogihara, Takumi Ogawa, Kenji Toma

High-resolution very long baseline interferometry (VLBI) radio observations have resolved the detailed emission structures of active galactic nucleus jets. General relativistic mag…

cond-mat.dis-nn2020★ 13 cited

Monte Carlo studies of the spin-chirality decoupling in the three-dimensional Heisenberg spin glass

Takumi Ogawa, Kazuki Uematsu, Hikaru Kawamura

An extensive equilibrium Monte Carlo simulation is performed on the 3D isotropic Heisenberg SG model with the random nearest-neighbor Gaussian coupling, with particular interest in…

astro-ph.HE2016★ 45 cited

A radiation-hydrodynamic model of accretion columns for ultra-luminous X-ray pulsars

Tomohisa Kawashima, Shin Mineshige, Ken Ohsuga +1

Prompted by the recent discovery of pulsed emission from an ultra-luminous X-ray source, M82 X-2 ("ULX-pulsar"), we perform a two-dimensional radiation-hydrodynamic simulation of a…