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DOI | 10.1029/2019GL083456 |
Effect of Hot He+ Ions on the Electron Pitch Angle Scattering Driven by H+, He+, and O+ Band EMIC Waves | |
Yu, J.1; Li, L. Y.2; Cui, J.1,3,4; Cao, J. B.2; Wang, J.1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6306-6314 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | In this paper, we find that hot He+ ions significantly alter the kinetic dispersion relation of electromagnetic ion cyclotron (EMIC) waves and thus strongly affect the wave-driven electron pitch angle scattering rates. Increasing hot He+ ion parallel temperature, temperature anisotropy, or abundance raises the pitch angle scattering rates of MeV electrons driven by the H+ band EMIC waves. During the electron resonance with the He+ and O+ band EMIC waves, the electron pitch angle scattering rates are more sensitive to the variation of temperature anisotropy and abundance of hot He+ ions than their parallel temperature. The increase of hot He+ ion abundance (temperature anisotropy or abundance) generates a reduction of the energy range of electrons interacting with the He+ (O+) band EMIC waves. Therefore, the effect of hot He+ ions on the EMIC wave-driven electron pitch angle scattering should be involved in the radiation belt modeling. |
英文关键词 | EMIC waves pitch angle scattering rates hot He+ ions |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300017 |
WOS关键词 | CYCLOTRON WAVES ; RELATIVISTIC ELECTRONS ; RESONANT SCATTERING ; PLASMA ; GENERATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184216 |
专题 | 气候变化 |
作者单位 | 1.Macau Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China; 2.Beihang Univ, Sch Space & Environm, Beijing, Peoples R China; 3.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China; 4.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Yu, J.,Li, L. Y.,Cui, J.,et al. Effect of Hot He+ Ions on the Electron Pitch Angle Scattering Driven by H+, He+, and O+ Band EMIC Waves[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6306-6314. |
APA | Yu, J.,Li, L. Y.,Cui, J.,Cao, J. B.,&Wang, J..(2019).Effect of Hot He+ Ions on the Electron Pitch Angle Scattering Driven by H+, He+, and O+ Band EMIC Waves.GEOPHYSICAL RESEARCH LETTERS,46(12),6306-6314. |
MLA | Yu, J.,et al."Effect of Hot He+ Ions on the Electron Pitch Angle Scattering Driven by H+, He+, and O+ Band EMIC Waves".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6306-6314. |
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