Comparative analysis of electron density and electric field fluctuations in highly active auroras observed by a sounding rocket S-310JA-12: Preliminary results
スポンサーリンク
概要
- 論文の詳細を見る
The S-310JA-12 rocket was launched geomagnetically northward from Syowa Station, Antarctica, during a strong substorm period. The onboard instruments were a Faraday cup for measuring electron density and its fluctuations up to 8kHz together with total flux of electrons with energies above 105eV and a pair of double probes for measuring DC electric field and electric field fluctuations of 5-220Hz, which detected various kinds of ELF-VLF band fluctuations during the flight. During the ascent, the Faraday cup observed strong VLF fluctuations in the E region and burst-like fluctuations over the region from 140 to 200km in altitude. The former might be caused by the two-stream instability and/or the cross-field instability, while the latter is considered to be generated artifitially around the rocket. Around the height of 220km, quasi-sinusoidal waves with the frequency of about 150Hz were observed by the both instruments. They are found to be right-hand circularly or elliptically polarized waves by crosscorrelation analysis. During the descent, the rocket passed through highly active auroras and the both instruments observed strong ELF fluctuations. It is suggested by the Faraday cup measurement that the rocket was considerably charged up by the precipitating electrons in the auroras.
- 国立極地研究所の論文
著者
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Yamagishi Hisao
National Institude of Polar Research
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Fukunishi Hiroshi
Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
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Ogawa Tadahiko
Radio Research Laboratory
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FUKUNISHI Hiroshi
Faculty of Science, Tohoku University
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Ogawa Toshio
Faculty Of Engineering Toyama Prefectural University
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Ogawa Tadahiko
Faculty Of Engineering Toyama Prefectural University
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OGAWA Toshio
Department of Electronic Engineering, Shizuoka Institute of Science and Technology
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Sagawa E
Radio Applications Division Communications Research Laboratory
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Sagawa Eiichi
Radio Research Laboratory
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Sagawa Eiichi
Radio Research Laboratories
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Mori Hirotaka
Hiraiso Solar Terrestrial Research Center Radio Research Laboratory
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Mori H
Radio Science Division Communications Research Laboratory
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Yamagishi Hisao
National Institute Of Polar Research
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Fukunishi Hiroshi
Faculty Of Science Tohoku University
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Fukunishi Hiroshi
Upper Atmosphere And Space Research Laboratory Tohoku University
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Fukunishi Hiroshi
Upper Atmosphere And Space Research Laboratory Faculty Of Science Tohoku University
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Sagawa Eiichi
Radio Applications Division Communications Research Laboratory
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Ogawa Toshio
Department Of Electronic Engineering Shizuoka Institute Of Science And Technology
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Mori Hirotaka
Hiraiso Branch Radio Research Laboratories
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Ogawa Toshio
Solar-terrestrial Environment Laboratory Nagoya University
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Ogawa Tadahiko
Radio Research Laboratories
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Ogawa Toshio
Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
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Ogawa Toshio
Department of Chemistry, College of General Education, Nagoya University
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