Ionospheric plasma modification in the vicinity of a spacecraft by powerful radio pulses in topside sounding |
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| Affiliation: | 1. Sergeev Institute of Environmental Geoscience Russian Academy of Sciences (IEG RAS), Ulansky per. 13 build. 2, 101000 Moscow, Russia;2. Lomonosov Moscow State University, Faculty of Chemistry, Department of Radiochemistry, Leninskie Gory 1 build. 3, GSP-1, 119991 Moscow, Russia;3. North Caucasus Federal University, Pyatigorsk Branch, Engineering Faculty, Department of Construction, Ermolov str., 46a, 357500 Pyatigorsk, Russia;4. Research and Technical Center of Radiation-Chemical Safety and Hygiene, Shchukinskaya ul. 40, 123182 Moscow, Russia |
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| Abstract: | A mechanism of strong turbulence is proposed for interpretation of the resonances observed by a wide-band receiver during topside sounding. The turbulence is created in the vicinity of the spacecraft due to the striction modulation instability. Experimental results obtained with the aid of a wide-band receiver on board the Intercosmos-19 satellite are discussed in terms of strong wave-wave and/or wave-particle interaction, namely electron acceleration in Langmuir cavitons and non-linear generation of the electron Langmuir plasma waves and Tonks-Dattner resonances. |
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