教師資料查詢 | 類別: 會議論文 | 教師: 汪愷悌 WANG KAITI (瀏覽個人網頁)

標題:Electric field disturbances observed by THEMIS mission at dipolarization sites in the magnetotail
學年106
學期2
發表日期2018/05/20
作品名稱Electric field disturbances observed by THEMIS mission at dipolarization sites in the magnetotail
作品名稱(其他語言)
著者Kaiti Wang; Ching-Huei Lin; Tohru Hada; Fumiko Otsuka; Tai-Yuan Wang; Shi-Hung Chuang Yang; Michael D. Hartinger; John Bonnell
作品所屬單位
出版者
會議名稱JpGU Meeting 2018
會議地點日本 千葉
摘要The electric fields measured at dipolarization sites when geomagnetic AL index decreases in the inner plasma sheet from 2008 to 2011 by the Electric Field Instrument (EFI) of THEMIS mission were analyzed and some cases show that the electric fields are disturbed with wave-like signatures. Preliminary results show that the frequencies of these disturbances are found to be between proton gyrofrequency (fcH+) and half of the electron gyrofrequency (fce), so possibly to be whistler-mode and lower-hybrid waves.
In this study, the wave properties of these fields will be investigated in detail. Since electric fields have been suggested to be able to accelerate electrons and can be a significant non-adiabatic acceleration mechanism for particles during dipolarization, acceleration of electrons and scattering in their pitch angles by these observed field disturbances will also be evaluated. This will be beneficial to our understanding on the role of the electric field disturbances play on electrons during dipolarization.
關鍵字THEMIS mission;electric fields;dipolarization
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20180520~20180524
通訊作者Kaiti Wang
國別日本
公開徵稿
出版型式
出處PEM16-20, Abstracts of JpGU Meeting 2018
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