Electron Dynamic Modelling during Dipolarization Substorm Events by Test Particle Simulations

淡江大學機構典藏 > 工學院 > 航空太空工程學系暨研究所 > 會議論文 > Item 987654321/124142

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题名:	Electron Dynamic Modelling during Dipolarization Substorm Events by Test Particle Simulations
作者:	Girgis, Kirolosse M.;Hada, Tohru;Wang, Kaiti;Otsuka, Fumiko;Akimasa, Yoshikawa
关键词:	Dipolarization;Substorm;Electron Dynamics;Test Particle Simulations;Tsyganenko Model;Inductive Electric Field;Polarized Electric Field
日期:	2023-05-21
上传时间:	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.
显示于类别:	[航空太空工程學系暨研究所] 會議論文

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