Electron hybrid and MHD code cross-reference simulation for the study of radiation belt electrons in the planetary magnetospheres

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03730
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Tohoku University
• Principal Investigator: Katoh Yuto 東北大学, 理学研究科, 准教授 (60378982)
• Co-Investigator(Kenkyū-buntansha): 深沢 圭一郎 京都大学, 学術情報メディアセンター, 准教授 (50377868)
• Co-Investigator(Renkei-kenkyūsha): KASAHARA Satoshi 東京大学, 大学院理学系研究科, 准教授 (00550500) ; MIYAKE Yohei 神戸大学, 大学院システム情報学研究科, 准教授 (50547396) ; OMURA Yoshiharu 京都大学, 生存圏研究所, 教授 (50177002)
• Research Collaborator: Kurth William 米国アイオワ大学 ; Menietti Doug 米国アイオワ大学
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 宇宙プラズマ・プラズマ波動 / 地球惑星磁気圏 / 太陽地球システム・宇宙天気 / オーロラ・磁気嵐

Outline of Final Research Achievements

We studied the acceleration process of relativistic electrons in planetary radiation belts by conducting 'cross-reference' simulations. We carried out (1) the magnetohydrodynamic (MHD) code for the interaction between solar wind and planetary magnetospheres and (2) electron hybrid code simulations reproducing the generation of whistler-mode chorus emissions, which play crucial roles in the efficient acceleration process of relativistic electrons in planetary magnetospheres. Based on the simulation results, we revealed the condition required for the chorus generation in the terrestrial and Jovian magnetospheres.

Free Research Field

宇宙空間プラズマ物理学