Efficient Scattering Loss of Energetic Electrons by Enhanced Higher-Band ECH Waves Observed by Van Allen Probes

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成果类型：

期刊论文

作者：

Yang, Qiwu;Liu, Si*;Yang, Hongming;Zhang, Sai;Tang, Jiawen;...

通讯作者：

Liu, Si;Xiao, FL

作者机构：

[Xiao, Fuliang; Zhang, Sai; Li, Ping; Gao, Zhonglei; Liu, Si; He, Yihua; Liu, S; Yang, Qiwu; Tang, Jiawen; Zhou, Qinghua; Deng, Zhoukun] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Peoples R China.

[Xiao, Fuliang; Zhang, Sai; Gao, Zhonglei; Liu, Si; Liu, S; Yang, Qiwu; Zhou, Qinghua] Changsha Univ Sci & Technol, Hunan Prov Higher Educ Key Lab Modeling & Monitori, Changsha, Peoples R China.

[Yang, Hongming] Changsha Univ Sci & Technol, Sch Elect & Informat Engn, Changsha, Peoples R China.

通讯机构：

[Xiao, FL ; Liu, S] C

Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Peoples R China.

Changsha Univ Sci & Technol, Hunan Prov Higher Educ Key Lab Modeling & Monitori, Changsha, Peoples R China.

语种：

英文

期刊：

GEOPHYSICAL RESEARCH LETTERS

ISSN：

0094-8276

年：

2023

卷：

期：

DOI：

10.1029/2023GL103927

基金类别：

This work is supported by the National Natural Science Foundation of China Grants 42230209, 42074198, and 7201101176, the Natural Science Foundation of Hunan Province Grants 2021JJ20010 and 2023JJ20038, the Science and Technology Innovation Program of Hunan Province Grant 2021RC3098, and the Open Research Fund of the Hunan Province Higher Education Key Laboratory of Modeling and Monitoring on the Near‐Earth Electromagnetic Environments (No. 202108), Changsha University of Science and Technology.

机构署名：

本校为第一且通讯机构

院系归属：

电气与信息工程学院

物理与电子科学学院

摘要：

Electron cyclotron harmonic (ECH) waves, which are responsible for the diffuse aurora, are usually observed with the strongest intensity in the first band. Here, we present observations of enhanced higher-band ECH with wave intensities above 10(-3) mV(2)m(-2) Hz(-1) by Van Allen Probes. Fully thermal simulation results indicate that these waves can be locally excited by the observed electron distributions, and higher plasma density and lower magnetic strength are favorable for generating the enhanced higher-band ECH. The pitch angle diffusion coefficient < D-alpha alpha > of the higher-band EC...

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Efficient Scattering Loss of Energetic Electrons by Enhanced Higher-Band ECH Waves Observed by Van Allen Probes

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