Impulsive plasma waves observed by DE-1 in the magnetosphere |
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| Institution: | 1. Institute of Computational Modelling RAS SB, 660036, Krasnoyarsk, Russia;2. CAESAR Consultancy, Cambridge CB3 9HW, UK;1. National Key Laboratory of Aerospace Flight Dynamics, Northwestern Polytechnical University, Xi’an 710072, China;2. School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China;3. Department of Flight Dynamics and Control Systems, Institute of Space Rocket Engineering, Samara National Research University, Samara 443086, Russia;4. Department of Automation, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | Impulsive plasma waves (1–9 kHz) with durations less than 100 msec have been found in DE-1 wide-band electric field data (650 Hz – 40 kHz) received at Kashima, Japan. The waves are associated with a strong narrow-band ELF hiss, and were observed at geocentric distances from 3.1 to 4.9 Re (earth's radius) in the low-latitude nightside magnetosphere. Local electron densities and plasmapause locations estimated suggest that the waves were observed outside the nightside plasmapause. The waves are discussed in terms of Landau resonant trapping of magnetospheric electrons by the associated whistler-mode ELF hiss. |
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