Study on Interactions Between Electrons and Observed Whistler-mode Waves at Dipolarization Sites in the Inner Plasma Sheet
學年 107
學期 2
發表日期 2019-07-28
作品名稱 Study on Interactions Between Electrons and Observed Whistler-mode Waves at Dipolarization Sites in the Inner Plasma Sheet
作品名稱（其他語言）
著者 Wang Kaiti; Fumiko Otsuka; Tohru Hada; Ching-Huei Lin
作品所屬單位
出版者
會議名稱 AOGS 16th Annual Meeting
會議地點 Singapore
摘要 Dipolarization of geomagnetic fields had been found to occur at tailside during geomagnetic activities associated with decreasing in AL index and substorms. Based on data analysis from electric field instrument and search coil magnetometer onboard of THEMIS mission, whistler-mode waves are found at dipolarization sites near the magnetic equator around 10 RE (Earth radii) in the inner plasma sheet. Meanwhile, the electron fluxes and their pitch angle distributions are also found to vary during dipolarization period. Therefore, we study the interaction between electrons and these waves from the perspective of test particle simulation. The observed wave frequencies, amplitudes, and wave angles as well as the electron energies are adopted to implement the simulation. Observations of parameters of the waves and electrons, as well as the preliminary simulation results of changes in energies and pitch angles of electrons at different energies will be presented. We anticipate the results will be beneficial to understand the role these observed whistler-mode waves play during dipolarization periods at tailside.
關鍵字 dipolarization;electrons;whisler-mode waves
語言 en
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20190728~20190802
通訊作者 汪愷悌
國別 SGP
公開徵稿
出版型式
出處 AOGS 2019 Program Abstracts
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117674 )

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