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:Observations of Waves and Pitch Angle Distributions of Electrons at Dipolarization sites
學年
學期
發表日期2020/11/16
作品名稱Observations of Waves and Pitch Angle Distributions of Electrons at Dipolarization sites
作品名稱(其他語言)
著者Wang, K.; F. Otsuka; T. Hada; C. H. Lin
作品所屬單位
出版者
會議名稱9th VERSIM Workshop (VERSIM 2020)
會議地點Online(Kyoto, Japan)
摘要Dipolarization of geomagnetic fields had been found to occur at Earth’s tailside during geomagnetic activities associated with decreasing in AL index and substorms [1]. Recently, the dipolarization phenomena were also reported to be observed in the inner magnetosphere [2]. Therefore, it would be essential to investigate properties of waves and particles associated with the dipolarization events. Based on our preliminary analysis from observations of THEMIS mission, both whistler-mode waves and variations in pitch angle distributions of electrons were found at a dipolarization site near the magnetic equator around 10 RE (Earth radii), and changes in energies and pitch angles of electrons according to observed wave parameters were simulated [3]. We found that the observed changes in pitch angles of electrons may ralate to their interaction with the observed waves. To substantiate the findings mentioned above, in this study, we aim to analyze observed wave parameters in more detail in terms of frequency ranges as well as amplitudes, wave angles, and polarities versus frequencies, to improve the input wave parameters of the simulation for their effects on electrons. Changes in the background magnetic field would also be taken into account. We anticipate the results will be beneficial to understand the properties of waves and electrons of dipolarization sites in the transition region from inner plasma sheet to the inner magnetosphere.
關鍵字
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20201116~20201120
通訊作者
國別日本
公開徵稿
出版型式
出處
相關連結
SDGs
  • 氣候行動
Google+ 推薦功能,讓全世界都能看到您的推薦!