109 citations · 599 across the 44 of their papers we have counts for
31 papers · 1 filter
Numerical Investigation of Efficient Electron Acceleration at an Unsteady Solar Flare Loop-Top
Yoshiaki Sato, Takafumi Kaneko, Noriyuki Narukage +1
Using magnetohydrodynamic (MHD) fields and guiding-center test-particle calculations, this study investigates how time-dependent loop-top dynamics modulate the adiabatic energizati…
The mass distribution of clumpy accretion onto the nearby young star TW Hya
Tao Ji, Javier Serna, Gregory J. Herczeg +12
The proliferation of high time-resolution and decades-long monitoring of classical T Tauri stars provides a vast opportunity to test the variability of the star-disk connections. H…
X-ray emission of F-type stars and its analogy with G-type stars
Takuma Shimura, Ikuyuki Mitsuishi, Masanobu Kunitomo +3
We conducted a systematic spectral study for single F-type main-sequence (MS) stars without significant X-ray outbursts to investigate X-ray spectral properties such as temperature…
Model of X-ray and extreme-UV emission from magnetically heated atmospheres in classical T Tauri stars: Case study of TW Hya
Munehito Shoda, Riouhei Nakatani, Shinsuke Takasao
Photoevaporation caused by X-rays and ultraviolet radiation from the central star has attracted attention as a key process driving the dispersal of protoplanetary discs. Although n…
Connecting a Magnetized Disk to a Convective Low-mass Protostar: A Global Three-dimensional Model of Boundary Layer Accretion
Shinsuke Takasao, Takashi Hosokawa, Kengo Tomida +1
In the early stages of star formation, boundary layer accretion, where protostars accrete material from disks extending down to their surfaces, plays a crucial role. Understanding…
NuSTAR detection of a hot stellar superflare with a temperature of 95 MK in hard X-rays
Tomohiro Hakamata, Hironori Matsumoto, Hirokazu Odaka +1
A search of the hard X-ray archive data of NuSTAR found a transient source, NuSTAR J230059+5857.4, during an observation of 1E 2259+586 on 2013 April 25. A multi-wavelength analysi…