Journal Article10.1029/95GL02781
Electrostatic solitary structures in non‐thermal plasmas
R. A. Cairns,A. A. Mamum,Robert Bingham,Rolf Boström,R. O. Dendy,C. M. C. Nairn,Padma Kant Shukla +6 more
853
TL;DR: In this article, the authors show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.
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Abstract: Solitary electrostatic structures involving density depletions have been observed in the upper ionosphere by the Freja satellite [Dovner et al., 1994]. If these are interpreted as ion sound solitons, the difficulty arises that the standard Korteweg-de Vries description predicts structures with enhanced rather than depleted density. Here we show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.
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Citations
Characteristics of nonlinear ion-acoustic waves in collisional plasmas with ionization effects
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Characteristics of solitary waves and weak double layers in the magnetospheric plasma.
TL;DR: The wave experiment of the Viking satellite frequently detected dynamic small-scale (up to 100 m), large-amplitude, rarefactive solitary waves of negative potential moving upwards along the magnetic field lines as mentioned in this paper.
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Freja multiprobe observations of electrostatic solitary structures
TL;DR: In this article, the Freja satellite was used to observe electrostatic solitary structures in the upper ionosphere in the auroral zone, and the use of multiple probes made the determination of their propagation characteristics possible.
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Electron holes, ion holes and double layers: Electrostatic phase space structures in theory and experiment
TL;DR: In this paper, the state-of-the-art in the observation and analytical description of localized electrostatic phase space structures is reviewed, and the controlling function of these nonlinearly excited d.c. states in the dynamical evolution of bounded plasmas exhibiting transient phenomena is discussed.
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Observations of weak double layers on auroral field lines
TL;DR: In this paper, the Swedish Viking satellite was used to measure the magnetic field and potential fluctuations with high temporal and spatial resolution, and double-layer structures were observed which have scale lengths of about 100 m and where the plasma density is reduced by up to 50%.
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