Rapid flattening of butterfly pitch angle distributions of radiation belt electrons by whistler-mode chorus

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成果类型：

期刊论文

作者：

Yang, Chang;Su, Zhenpeng*;Xiao, Fuliang;Zheng, Huinan;Wang, Yuming;...

通讯作者：

Su, Zhenpeng

作者机构：

[Su, Zhenpeng; Yang, Chang; Zheng, Huinan; Wang, Yuming; Wang, Shui] Univ Sci & Technol China, Dept Geophys & Planetary Sci, Hefei, Peoples R China.

[Su, Zhenpeng; Yang, Chang; Zheng, Huinan; Wang, Yuming; Wang, Shui] Univ Sci & Technol China, Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei, Peoples R China.

[Yang, Chang; Xiao, Fuliang] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Hunan, Peoples R China.

[Spence, H. E.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.

[Reeves, G. D.] Los Alamos Natl Lab, Space Sci & Applicat Grp, Los Alamos, NM USA.

通讯机构：

[Su, Zhenpeng] U

Univ Sci & Technol China, Dept Geophys & Planetary Sci, Hefei, Peoples R China.

Univ Sci & Technol China, Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei, Peoples R China.

语种：

英文

关键词：

butterfly pitch-angle distribution;chorus waves;quasi-linear simulation;Radiation belt;Van Allen Probes;wave/particle interactions

期刊：

GEOPHYSICAL RESEARCH LETTERS

ISSN：

0094-8276

年：

2016

卷：

期：

页码：

8339-8347

DOI：

10.1002/2016GL070194

基金类别：

This work was supported by the National Natural Science Foundation of China grants 41422405, 41274169, 41274174, 41174125, 41131065, 41421063, 41231066, and 41304134, the Chinese Academy of Sciences grant KZCX2-EW-QN510 and KZZD-EW-01-4, the National Key Basic Research Special Foundation of China grant 2011CB811403, and the Fundamental Research Funds for the Central Universities WK2080000077. Data are available at the following websites: http://cdaweb.gsfc.nasa.gov/cdaweb/istp_public/ (geomagnetic activity indices), http://emfisis.physics.uiowa.edu/Flight/ (EMFISIS), http://www.rbsp-ect.lanl.gov/data_pub/ (ECT), and http://www.space.umn.edu/rbspefw-data/ (EFW).

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本校为其他机构

院系归属：

物理与电子科学学院

摘要：

Van Allen radiation belt electrons exhibit complex dynamics during geomagnetically active periods. Investigation of electron pitch angle distributions (PADs) can provide important information on the dominant physical mechanisms controlling radiation belt behaviors. Here we report a storm time radiation belt event where energetic electron PADs changed from butterfly distributions to normal or flattop distributions within several hours. Van Allen Probes observations showed that the flattening of butterfly PADs was closely related to the occurrenc...

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Rapid flattening of butterfly pitch angle distributions of radiation belt electrons by whistler-mode chorus

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