Arase Observation of Simultaneous Electron Scatterings by Upper-Band and Lower-Band Chorus Emissions

Y. Kazama, Y. Miyoshi, H. Kojima, Y. Kasahara, S. Kasahara, H. Usui, B. J. Wang, S. Y. Wang, S. W.Y. Tam, T. F. Chang, K. Asamura, S. Matsuda, A. Kumamoto, F. Tsuchiya, Y. Kasaba, M. Shoji, A. Matsuoka, M. Teramoto, T. Takashima, I. Shinohara

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

This study reports a relation between electron flux modulations and chorus emissions by using correlation analysis. On April 18, 2017, Arase observed an enhancement of electron fluxes and intensification of banded chorus emissions at the same time. A result of the analysis shows that both the upper-band and lower-band chorus emissions have good correlations with field-aligned electron fluxes that satisfy their resonance conditions. This indicates simultaneous interactions with both the emission bands and electrons, resulting in electron pitch-angle scattering toward the magnetic field direction. In addition, low-energy electron fluxes in the perpendicular direction also show positive correlations with the chorus intensities, probably because the chorus emissions are modulated by a fluctuation of perpendicular low-energy electron fluxes.

原文English
文章編號e2021GL093708
期刊Geophysical Research Letters
48
發行號14
DOIs
出版狀態Published - 2021 7月 28

All Science Journal Classification (ASJC) codes

  • 地球物理
  • 地球與行星科學(全部)

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