Electrostatic Electron Cyclotron Harmonic Waves as a Candidate to Cause Pulsating Auroras
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- M. Fukizawa
- Graduate School of Science Tohoku University Sendai Japan
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- T. Sakanoi
- Graduate School of Science Tohoku University Sendai Japan
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- Y. Miyoshi
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- K. Hosokawa
- Graduate School of Informatics and Engineering University of Electro‐Communications Chofu Japan
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- K. Shiokawa
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- Y. Katoh
- Graduate School of Science Tohoku University Sendai Japan
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- Y. Kazama
- Academia Sinica Institute of Astronomy and Astrophysics Taipei Taiwan
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- A. Kumamoto
- Graduate School of Science Tohoku University Sendai Japan
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- F. Tsuchiya
- Graduate School of Science Tohoku University Sendai Japan
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- Y. Miyashita
- Korea Astronomy and Space Science Institute Daejeon South Korea
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- Y. ‐M. Tanaka
- National Institute of Polar Research Tachikawa Japan
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- Y. Kasahara
- Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan
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- M. Ozaki
- Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan
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- A. Matsuoka
- Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
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- S. Matsuda
- Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
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- M. Hikishima
- Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
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- S. Oyama
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- Y. Ogawa
- National Institute of Polar Research Tachikawa Japan
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- S. Kurita
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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- R. Fujii
- Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
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説明
<jats:title>Abstract</jats:title><jats:p>Pulsating auroras (PsAs) are thought to be generated by precipitating electrons scattered by lower‐band chorus (LBC) waves near the magnetic equator. One‐to‐one correlation between the LBC intensity and the PsA intensity has been reported. Electrostatic electron cyclotron harmonic (ECH) waves can also scatter electrons. However, direct correlation between ECH and PsA has not been reported yet. In this study, using a coordinated Exploration of energization and Radiation in Geospace (Arase) satellite and ground‐based imager observation, we report that not only LBC but also ECH have correlation with PsA. We estimated the precipitating electron energy by assuming that the time lag when the cross‐correlation coefficient became the highest was travel time of electrons from the modulation region. We found that the estimated energies show reasonable values as the cyclotron resonance energy of each wave.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 45 (23), 661-, 2018-12-02
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
- 1360004233291774464
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- ISSN
- 19448007
- 00948276
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- Web Site
- https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2018GL080145
- https://onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL080145
- https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2018GL080145
- https://onlinelibrary.wiley.com/doi/am-pdf/10.1029%2F2018GL080145
- https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL080145
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- 資料種別
- journal article
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