181 citations · 1.3k across the 60 of their papers we have counts for
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Magnetic Reconnection in Galaxy Clusters
Takuya Akahori, Kohei Kurahara, Shin-ya Nitta +4
Galaxy clusters contain an intra-cluster medium (ICM) with temperatures of tens of millions of Kelvin. Cosmological structure formation simulations show that this diffuse gas is he…
XMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.94750
Y. Omiya, K. Nakazawa, K. Matsushita +10
CIZA J1358.9-4750 is a nearby galaxy cluster in the early phase of a major merger. The two-dimensional temperature map using XMM-Newton EPIC-PN observation confirms the existence o…
Effects of Depolarizing Intervening Galaxies on Background Radio Emission I. Global Disk Magnetic Field
Rikuto Omae, Takuya Akahori, Mami Machida
External galaxies often intervene in front of background radio sources such as quasars and radio galaxies. Linear polarization of the background emission is depolarized by Faraday…
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…
Magnetism Science with the Square Kilometre Array
George Heald, Sui Ann Mao, Valentina Vacca +41
The Square Kilometre Array (SKA) will answer fundamental questions about the origin, evolution, properties, and influence of magnetic fields throughout the Universe. Magnetic field…
Discovery of Radio Jets in Phoenix Galaxy Cluster Center
Takuya Akahori, Tetsu Kitayama, Shutaro Ueda +6
We report the results of the Australia Telescope Compact Array (ATCA) 15 mm observation of the Phoenix galaxy cluster possessing an extreme star-burst brightest cluster galaxy (BCG…
Workshop summary 'The Power of Faraday Tomography'
Marijke Haverkorn, Mami Machida, Takuya Akahori
This article summarizes the work presented at the workshop 'The Power of Faraday Tomography: towards 3D mapping of cosmic magnetic fields', held in Miyazaki, Japan, in Spring 2018.…
Radio broadband visualization of global three-dimensional magneto-hydrodynamical simulations of spiral galaxies II. Faraday Depolarization from 100MHz to 10GHz
Mami Machida, Takuya Akahori, Kenji Nakamura +2
Observational study of galactic magnetic fields is limited by projected observables. Comparison with numerical simulations is helpful to understand the real structures, and observa…
Radio broadband visualization of global three-dimensional magneto-hydrodynamical simulations of spiral galaxies I. Faraday rotation at 8GHz
Mami Machida, Takuya Akahori, Kenji Nakamura Hiroyuki Nakanishi +1
Observational study of galactic magnetic fields is hampered by the fact that the observables only probe various projections of the magnetic fields. Comparison with numerical simula…
Magnetic Field Analysis of the Bow and Terminal Shock of the SS433 Jet
Haruka Sakemi, Mami Machida, Takuya Akahori +4
We report a polarization analysis of the eastern region of W50, observed with the Australia Telescope Compact Array (ATCA) at 1.4 - 3.0 GHz. In order to study the physical structur…
Study of Vertical Magnetic Field in Face-on Galaxies using Faraday Tomography
Shinsuke Ideguchi, Yuichi Tashiro, Takuya Akahori +2
Faraday tomography allows astronomers to probe the distribution of magnetic field along the line of sight (LOS), but that can be achieved only after Faraday spectrum is interpreted…
Probing WHIM around Galaxy Clusters with Fast Radio Bursts and the Sunyaev-Zel'dovich effect
Yutaka Fujita, Takuya Akahori, Keiichi Umetsu +2
We propose a new method to probe the Warm Hot Intergalactic Medium (WHIM) beyond the virial radius (R_200) of a cluster of galaxies, where X-ray observations are not easily achieva…
SKA Deep Polarization and Cosmic Magnetism
A. R. Taylor, Ivan Agudo, Takuya Akahori +10
Deep surveys with the SKA1-MID array offer for the first time the opportunity to systematically explore the polarization properties of the microJy source population. Our knowledge…
Measuring magnetism in the Milky Way with the Square Kilometre Array
Marijke Haverkorn, Takuya Akahori, Ettore Carretti +17
Magnetic fields in the Milky Way are present on a wide variety of sizes and strengths, influencing many processes in the Galactic ecosystem such as star formation, gas dynamics, je…
Faraday dispersion functions of galaxies
Shinsuke Ideguchi, Yuichi Tashiro, Takuya Akahori +2
The Faraday dispersion function (FDF), which can be derived from an observed polarization spec- trum by Faraday rotation measure synthesis, is a profile of polarized emissions as a…
Simulated Faraday Rotation Measures toward High Galactic Latitudes
Takuya Akahori, Dongsu Ryu, Jongsoo Kim +1
We study the Faraday rotation measure (RM) due to the Galactic magnetic field (GMF) toward high Galactic latitudes. The RM arises from the global, regular component as well as from…
Dynamo activities driven by magneto-rotational instability and Parker instability in galactic gaseous disk
Mami Machida, Kenji E. Nakamura, Takahiro Kudoh +3
We carried out global three-dimensional magneto-hydrodynamic simulations of dynamo activities in galactic gaseous disks without assuming equatorial symmetry. Numerical results indi…