Study of hiss emissions and particle scattering in the Earth's radiation belt

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K17771
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Space and upper atmospheric physics
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: HIKISHIMA Mitsuru 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (50646023)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 計算機実験 / 磁気圏物理 / プラズマ波動 / 波動粒子相互作用

Outline of Final Research Achievements

We have performed a full particle simulation to study the generation mechanism of whistler-mode hiss emissions in the Earth's plasmasphere. In the simulation, hiss emissions with a broad frequency band below the electron gyrofrequency are excited through wave-particle interactions. We found the wave growth process involving a nonlinear wave growth.

Free Research Field

超高層物理学