Modification of ionospheric plasma in the near Rf field of a dipole antenna: active experiment in space

1Baranets, NV, 2Afonin, VV, 3Gladyshev, VA, 1Sobolev, Ya.P, 4Komrakov, GP
1Pushkov Institute of Terrestrial Magnetism, Ionosphere and Propagation of Radio Waves of the Russian AS, Troitsk, Russia
2Space Research Institute of the Russian AS, Moscow, Russia
3Earth Physics Institute of O.Yu. Schmidt of the Russian AS, Moscow, Russia
4Scientific and Research Radio Physical Institute, Nizhny Novgorod, Russia
Kosm. nauka tehnol. 2000, 6 ;(5):35-48
Section: Space Instruments
Publication Language: Russian
Experimental results of the sounder accelerated charged particles (SAP) and perturbed plasma density recorded in the near satellite region are considered. Ion acceleration after rf pulses (τ ≥ 0) is related to the self-similar plasma expansion into a vacuum (region 2) to negatively charged body. The boundary «plasma-sheath» stability (in region 3) during an rf pulse is also considered relative to the LF fluctuation of plasma density. The first observations of the ion flux at the electron cyclotron harmonics ce. (n = 1, 2, ...) as well as the electron flux in the frequency range of ω0 = nωce - 0z vz |, n = 1, 2, ..., 5 (z II B0) are registered on Cosmos-1809 satellite. It is suggested that the acceleration of ions can be explained by the resonance increase of «Miller force» ~ V|E2 (r, z)|2ω0/ (ω0 ce ).
Keywords: active experiment, Cosmos-1809, near satellite plasma
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