Generation of Electron Acoustic Waves in the Topside Ionosphere From Coupling With Kinetic Alfven Waves: A New Electron Energization Mechanism

Run Shi, Binbin Ni, Danny Summers, Huixin Liu, Akimasa Yoshikawa, Beichen Zhang

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Results from a new drift kinetic model in the topside ionosphere capture the mode conversion from kinetic Alfven waves to electron acoustic waves. When the kinetic Alfven waves propagate into the transition region, where the electron density of ionospheric origin becomes comparable to that of magnetospheric origin, the steep temperature gradient leads to the mode conversion. The electron acoustic waves are short-lived by dissipating their energy into the electron energization, thus revealing a new type of electron acceleration in the topside ionosphere.

本文言語英語
ページ(範囲)5299-5304
ページ数6
ジャーナルGeophysical Research Letters
45
11
DOI
出版ステータス出版済み - 6 16 2018

All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 地球惑星科学(全般)

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