Sai Zhang   Qinpei Yin   Hongming Yang   Fuliang Xiao   Qinghua Zhou   Qiwu Yang   Jiawen Tang   Zhoukun Deng   Yoshiya Kasahara   Yoshizumi Miyoshi   Atsushi Kumamoto   Yosuke Nakamura   Fuminori Tsuchiya   Iku Shinohara   Satoko Nakamura   Yasumasa Kasaba   Tomoaki Hori   
Geophysical Research Letters 51(5) 2024年2月
Abstract
Previous studies have shown that auroral kilometric radiation (AKR) can play an important role in the magnetosphere‐atmosphere coupling and has the right‐handed extraordinary (R‐X), left‐handed ordinary (L‐O) and left‐handed extraordinar...
Zhiyong Wu   Zhenpeng Su   Huinan Zheng   Yuming Wang   Yoshizumi Miyoshi   Iku Shinohara   Ayako Matsuoka   Yoshiya Kasahara   Fuminori Tsuchiya   Atsushi Kumamoto   Shoya Matsuda   Yasumasa Kasaba   Mariko Teramoto   Tomoaki Hori   
Geophysical Research Letters 51(4) 2024年2月
Abstract
Plasmaspheric hiss waves are important to shape the Earth’s electron radiation belt. These waves are commonly envisioned to have a long lifetime which allows them to permeate the global plasmasphere from a spatially restricted source. Ho...
Vladimir Borisovich Belakhovsky   Vyacheslav A. Pilipenko   Elizaveta E. Antonova   Yoshizumi Miyoshi   Yoshiya Kasahara   Satoshi Kasahara   Nana Higashio   Iku Shinohara   Tomoaki Hori   Shoya Matsuda   Shoichiro Yokota   Takeshi Takashima   Mitani Takefumi   Kunihiro Keika   Satoko Nakamura   
Earth, Planets and Space 75(1) 2023年12月
Abstract
Variations of relativistic electron fluxes (E ≥ 1 MeV) and wave activity in the Earth magnetosphere are studied to determine the contribution of different acceleration mechanisms of the outer radiation belt electrons: ULF mechanism, VLF ...
L. M. Kistler   K. Asamura   S. Kasahara   Y. Miyoshi   C. G. Mouikis   K. Keika   S. M. Petrinec   M. L. Stevens   T. Hori   S. Yokota   I. Shinohara   
Nature Communications 14(1) 2023年10月
Abstract
Both solar wind and ionospheric sources contribute to the magnetotail plasma sheet, but how their contribution changes during a geomagnetic storm is an open question. The source is critical because the plasma sheet properties control the...
Hiroyuki Toyota   Iku Shinohara   
2019 EUROPEAN SPACE POWER CONFERENCE (ESPC) 2019年
We found that the solar panel output current of JAXA's Venus explorer Akatsuki is below values expected from percentage of shadow during penumbras. We also found that a similar phenomenon occurs in JAXA's Van Allen radiation belts explorer Arase d...