Relativistic electron precipitation at International Space Station: Space weather monitoring by Calorimetric Electron Telescope

Ryuho Kataoka*, Yoichi Asaoka, Shoji Torii, Toshio Terasawa, Shunsuke Ozawa, Tadahisa Tamura, Yuki Shimizu, Yosui Akaike, Masaki Mori

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

The charge detector (CHD) of the Calorimetric Electron Telescope (CALET) on board the International Space Station (ISS) has a huge geometric factor for detecting MeV electrons and is sensitive to relativistic electron precipitation (REP) events. During the first 4 months, CALET CHD observed REP events mainly at the dusk to midnight sector near the plasmapause, where the trapped radiation belt electrons can be efficiently scattered by electromagnetic ion cyclotron (EMIC) waves. Here we show that interesting 5-20 s periodicity regularly exists during the REP events at ISS, which is useful to diagnose the wave-particle interactions associated with the nonlinear wave growth of EMIC-triggered emissions.

本文言語English
ページ(範囲)4119-4125
ページ数7
ジャーナルGeophysical Research Letters
43
9
DOI
出版ステータスPublished - 2016 5 16

ASJC Scopus subject areas

  • 地球物理学
  • 地球惑星科学(全般)

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