Injection of 40-kHz-modulated electron beam from the satellite: II. Excitation of electrostatic and whistler waves

0531698 - ÚFA 2021 RIV GB eng J - Journal Article
Baranets, N. - Ruzhin, Yu. - Dokukin, V. - Ciobanu, M. - Rothkaehl, H. - Kiraga, A. - Vojta, Jaroslav - Šmilauer, Jan - Kudela, Karel
Injection of 40-kHz-modulated electron beam from the satellite: II. Excitation of electrostatic and whistler waves.
Advances in Space Research. Roč. 65, č. 1 (2020), s. 30-49. ISSN 0273-1177. E-ISSN 1879-1948
R&D Projects: GA MŠMT EF15_003/0000481
Institutional support: RVO:68378289 ; RVO:61389005
Keywords : Beam-plasma interaction * Whistler-mode wave excitation * Active space experiment
OECD category: Meteorology and atmospheric sciences; Meteorology and atmospheric sciences (UJF-V)
Impact factor: 2.152, year: 2020
Method of publishing: Open access
https://www.sciencedirect.com/science/article/pii/S0273117719306106

Beam-plasma interaction effects are studied during the active space experiment with electron and Xe-ion beam injections in an ionospheric plasma. Permanent 40-kHz-modulated electron beam injection occurs simultaneously with a xenon-ion beam injected by the Hall-type plasma thruster operating in a square-pulse mode (100/50 s for a job/pause duration). The unusual behavior of the background charged particle fluxes and wave activity stimulated during the beam-plasma interaction have been registered by the scientific instruments onboard Intercosmos-25 station (IK-25) and Magion-3 subsatellite. The longitudinal and electromagnetic wave instabilities and their mutual relationship are considered in order to explain the observed effects. The excitation of electrostatic waves by the electron injection has been considered for different resonance conditions near the linear stability boundary. Beam-driven electromagnetic instability is responsible for the backward-propagating whistler waves excited via cyclotron resonance. Competition of these two beam instabilities is one of the subjects of the present study.
Permanent Link: http://hdl.handle.net/11104/0310313