activity
19922026
most citedX-Ray Flares and Mass Outflows Driven by Magnetic Interaction between a Protostar and its Surrounding Disk

300 citations · 1.7k across the 52 of their papers we have counts for

collaborators

52 papers

astro-ph.HE2026

An ALMA view of the Jet-Arc CO clouds toward the TeV -ray source HESS J1023-575 and Westerlund 2; Evidence for the footprints of microquasar jets, the very powerful cosmic-ray accelerator in the Galactic disk

Yasuo Fukui, Kisetsu Tsuge, Hidetoshi Sano +7

The TeV -ray source HESS J1023-575 (HESSJ 1023 hereafter) is one of the brightest H.E.S.S. sources near the young massive cluster Westerlund 2. HESS J1023 shows a remarkable pos…

astro-ph.HE2024

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 (…

astro-ph.HE2020★ 9 cited

Radiation Magnetohydrodynamic Simulations of Sub-Eddington accretion Flows in AGN: Origin of Soft X-ray Excess and Rapid Time Variabilities

Taichi Igarashi, Yoshiaki Kato, Hiroyuki R. Takahashi +3

We investigate the origin of the soft X-ray excess component in Seyfert galaxies observed when their luminosity exceeds 0.1% of the Eddington luminosity (). The e…

astro-ph.GA2020★ 2 cited

Implications of the mild gas motion found with Hitomi in the core of the Perseus cluster

Liyi Gu, Kazuo Makishima, Ryoji Matsumoto +6

Based mainly on X-ray observations, studies are made on interactions between the intra-cluster medium (ICM) in clusters of galaxies and their member galaxies. Through (magneto)hydr…

astro-ph.HE2020★ 10 cited

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…

astro-ph.GA2017★ 8 cited

Magnetic Activity in the Galactic Centre Region -- Fast Downflows along Rising Magnetic Loops

Kensuke Kakiuchi, Takeru K. Suzuki, Yasuo Fukui +4

We studied roles of the magnetic field on the gas dynamics in the Galactic bulge by a three-dimensional global magnetohydrodynamical simulation data, particularly focusing on verti…