Deformation of Electron Pitch Angle Distributions Caused by Upper Band Chorus Observed by the Arase Satellite
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- S. Kurita
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- Y. Miyoshi
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- S. Kasahara
- Department of Earth and Planetary Science, School of Science The University of Tokyo Tokyo Japan
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- S. Yokota
- Department of Earth and Space Science, Graduate School of Science Osaka University Osaka Japan
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- Y. Kasahara
- Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan
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- S. Matsuda
- Institute for Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
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- A. Kumamoto
- Graduate school of Science Tohoku University Tohoku Japan
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- A. Matsuoka
- Institute for Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
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- I. Shinohara
- Institute for Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
書誌事項
- 公開日
- 2018-08-21
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1029/2018gl079104
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:title>Abstract</jats:title><jats:p>We report on deformation of electron pitch angle distributions associated with upper band chorus observed by the Arase satellite. The deformation is characterized by flux increase of 17–30 keV electrons in a narrow and oblique pitch angle range (65–80°) and by flux decrease in 7–17 keV electron flux in the smaller pitch angle range than the flux increase. Comparison of change in electron pitch angle distributions with resonant ellipses of the upper band chorus shows that the deformation appears where effective wave‐particle interaction is expected in the velocity space, and the flux increase takes place along the resonant ellipse of the upper frequency of the wave. This strongly suggests that the deformation is a consequence of wave‐particle interactions between electrons and upper band chorus. The Arase observation demonstrates that the deformation occurs within 30 s, which is faster than expected from the quasi‐linear diffusion theory.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 45 (16), 7996-8004, 2018-08-21
American Geophysical Union (AGU)
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詳細情報 詳細情報について
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- CRID
- 1360004233291666688
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- ISSN
- 19448007
- 00948276
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- Web Site
- https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2018GL079104
- https://onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL079104
- https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2018GL079104
- https://onlinelibrary.wiley.com/doi/am-pdf/10.1029%2F2018GL079104
- https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL079104
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- 資料種別
- journal article
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- データソース種別
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- KAKEN
- OpenAIRE
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