Relativistic electron precipitation at International Space Station: Space weather monitoring by Calorimetric Electron Telescope
Geophysical Research Letters2016Vol. 43(9), pp. 4119–4125
Citations Over TimeTop 12% of 2016 papers
Ryuho Kataoka, Y. Asaoka, S. Torii, T. Terasawa, S. Ozawa, Tadahisa Tamura, Yuki Shimizu, Yosui Akaike, M. Mori
Abstract
Abstract 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.
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