タムラ タダヒサ   Tamura Tadahisa
  田村 忠久
   所属   神奈川大学  工学部 物理学教室
    神奈川大学大学院  工学研究科 工学専攻(応用物理学領域)
   職種   教授
言語種別 英語
発行・発表の年月 2016/05
形態種別 学術雑誌
査読 査読あり
標題 Relativistic electron precipitation at International Space Station: Space weather monitoring by Calorimetric Electron Telescope
執筆形態 共著
掲載誌名 Geophysical Research Letters
掲載区分国外
巻・号・頁 43,pp.4119-4125
著者・共著者 Ryuho Kataoka, Yoichi Asaoka, Shoji Torii, Toshio Terasawa, Shunsuke Ozawa, Tadahisa Tamura, Yuki Shimizu, Yosui Akaike, Masaki Mori
概要 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.
DOI 10.1002/2016GL068930