淡江大學機構典藏:Item 987654321/124142
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    題名: Electron Dynamic Modelling during Dipolarization Substorm Events by Test Particle Simulations
    作者: Girgis, Kirolosse M.;Hada, Tohru;Wang, Kaiti;Otsuka, Fumiko;Akimasa, Yoshikawa
    關鍵詞: Dipolarization;Substorm;Electron Dynamics;Test Particle Simulations;Tsyganenko Model;Inductive Electric Field;Polarized Electric Field
    日期: 2023-05-21
    上傳時間: 2023-06-01 12:05:39 (UTC+8)
    摘要: We developed a test particle simulation code to examine the electron dynamics during multiple dipolarization substorm events detected by the THEMIS mission. Through the Tao-Chan-Brizard guiding center model, we evaluated the trajectories of 0.1, 1, and 10 keV electrons with different initial pitch angles and L-shells. We applied the Tsyganenko model TS05 and the IGRF-12 to generate the time-varying magnetic field model with the corresponding inductive and polarized electric fields.
    The particle flux and energy enhancements in the nighttime magnetosphere characterize dipolarization events. The increase in the magnetic field and the corresponding induced and polarized electric field energizes and transports the particles earthward, which can explain the mechanism of the particle flux enhancement in the inner magnetosphere.
    顯示於類別:[航空太空工程學系暨研究所] 會議論文

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