T. Namekawa   T. Mitani   K. Asamura   Y. Miyoshi   K. Hosokawa   M. Lessard   C. Moser   A. J. Halford   T. Sakanoi   M. Kawamura   M. Nose   R. Nomura   M. Teramoto   M. Shumko   K. A. Lynch   A. N. Jaynes   M. G. McHarg   
Geophysical Research Letters 50(24) Dec 2023 [Refereed]
Abstract
We have identified for the first time an energy‐time dispersion of precipitating electron flux in a pulsating aurora patch, ranging from 6.7 to 580 keV, through simultaneous in‐situ observations of sub‐relativistic electrons of microburs...
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) Oct 2023 [Refereed]
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...
L. Chen   K. Shiokawa   Y. Miyoshi   S. Oyama   C‐W. Jun   Y. Ogawa   K. Hosokawa   Y. Kazama   S. Y. Wang   S. W. Y. Tam   T. F. Chang   B. J. Wang   K. Asamura   S. Kasahara   S. Yokota   T. Hori   K. Keika   Y. Kasaba   A. Kumamoto   F. Tsuchiya   M. Shoji   Y. Kasahara   A. Matsuoka   I. Shinohara   S. Nakamura   
Journal of Geophysical Research: Space Physics 128(10) Sep 2023 [Refereed]
Abstract
Although many substorm‐related observations have been made, we still have limited insight into propagation of the plasma and field perturbations in Pi2 frequencies (∼7‐25 mHz) in association with substorm aurora, particularly from the au...
Sandeep Kumar   Y. Miyoshi   V. Jordanova   L. M. Kistler   I. Park   C. Jun   T. Hori   K. Asamura   Shreedevi P. R   S. Yokota   S. Kasahara   Y. Kazama   S.‐Y. Wang   Sunny W. Y. Tam   Tzu‐Fang Chang   T. Mitani   N. Higashio   K. Keika   A. Matsuoka   S. Imajo   I. Shinohara   
Journal of Geophysical Research: Space Physics Sep 2023 [Refereed]
Abstract
Using Arase observations of the inner magnetosphere during 26 CIR‐driven geomagnetic storms with minimum Sym‐H between ‐33 and ‐86 nT, we investigated ring current pressure development of ions (H+, He+, O+</sup...
Mercury’s magnetosphere is known to involve fundamental processes releasing particles and energy like at Earth due to the solar wind interaction. The resulting cycle is however much faster and involves acceleration, transport, loss, and ...
北欧における宇宙と地上からの総合観測と数値実証によるオーロラ降下電子特性の解明Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
重力天体着陸探査用小型ガスクロマトグラフ質量分析計による有機物その場分析への挑戦Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory)