38 citations · 92 across the 13 of their papers we have counts for
13 papers
Origin and Evolution of the Structure in the Head-Tail Radio Galaxy of Abell 3322
Kohei Kurahara, Takuya Akahori, Takumi Ohmura +8
A head-tail galaxy is thought to be a radio galaxy with bent active galactic nuclei (AGN) jets interacting with the intracluster medium (ICM). Study of head-tail galaxies provides…
Three-Dimensional Polarimetric Structure of Jets from Radio Galaxy MRC 0600-399 in A3376
Haruka Sakemi, James O. Chibueze, William D. Cotton +8
MRC 0600-399, in the merging galaxy cluster Abell 3376, is one of the unique Head-Tail radio galaxies having abruptly bending structures, the origin of which is still under discuss…
Property of downstream turbulence driven by the special relativistic shock-clump interaction
Kanji Morikawa, Yutaka Ohira, Takumi Ohmura
Three-dimensional special relativistic magnetohydrodynamic simulations are performed to investigate properties of the downstream turbulence generated by the interaction between a r…
Particle acceleration and magnetic field amplification by relativistic shocks in inhomogeneous media
Kanji Morikawa, Yutaka Ohira, Takumi Ohmura
Particle acceleration and magnetic field amplification in relativistic shocks propagating in inhomogeneous media are investigated by three-dimensional magnetohydrodynamical (MHD) s…
Simulations of two-temperature jets in galaxy clusters: I. Effect of jet magnetization on dynamics and electron heating
Takumi Ohmura, Mami Machida
Non-radiating protons in the radio lobes have an essential role to form the jet morphology which is shown by recent radio and X-ray observations. However, since protons and electro…
Simulations of two-temperature jets in galaxy clusters: II. X-ray property of forward shock
Takumi Ohmura, Mami Machida, Hiroki Akamatsu
Forward shocks by radio jets, driven into the intracluster medium, are one of the indicators that can be used to evaluate the power of the jet. Meanwhile high-angular-resolution X-…
Dynamical Energy Dissipation of Relativistic Magnetic Bullets
Yo Kusafuka, Katsuaki Asano, Takumi Ohmura +1
To demonstrate the magnetic energy dissipation via relativistic shocks, we carry out spherically symmetrical one-dimensional special relativistic magneto-hydrodynamic simulations o…
Non-thermal emissions from a head-tail radio galaxy in 3D magnetohydrodynamic simulations
Takumi Ohmura, Katsuaki Asano, Kosuke Nishiwaki +2
We present magnetohydrodynamic simulations of a jet-wind interaction in a galaxy cluster and the radio to gamma-ray and the neutrino emissions from this "head-tail galaxy". Our sim…
Pseudo-observation of spiral galaxies in the radio band to verify depolarization models
Yuta Tashima, Takumi Ohmura, Mami Machida
Studies of the three-dimensional (3D) structures of galactic magnetic fields are now entering a new era, with broadband, highly sensitive radio observations and new analysis method…
Jets from MRC 0600-399 bent by magnetic fields in the cluster Abell 3376
James O. Chibueze, Haruka Sakemi, Takumi Ohmura +7
Galaxy clusters are known to harbour magnetic fields. The nature of the intra-cluster magnetic fields remains an unresolved question. Intra-cluster magnetic field can be observed a…
Continuous Jets and Backflow Models for the Formation of W50/SS433 in Magnetohydrodynamics Simulations
Takumi Ohmura, Kojiro Ono, Haruka Sakemi +3
The formation mechanism of the W50/SS433 complex has long been a mystery. We propose a new scenario in which the SS433 jets themselves form the W50/SS433 system. We carry out magne…
Energy estimation of high energy particles associated with the SS433/W50 system through radio observation at 1.4 GHz
Haruka Sakemi, Rikuto Omae, Takumi Ohmura +1
The radio nebula W50 is a unique object interacting with the jets of the microquasar SS433. The SS433/W50 system is a good target for investigating the energy of cosmic-ray particl…
Two-temperature Magnetohydrodynamic simulations for sub-relativistic AGN jets:Dependence on the fraction of the electron heating
T. Ohmura, M. Machida, K. E. Nakamura +2
We present the results of two-temperature magnetohydrodynamic simulations of the propagation of sub-relativistic jets of active galactic nuclei. The dependence of the electron and…