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Generation of broadband electrostatic noise by electron acoustic solitons
Author(s) -
Dubouloz N.,
Pottelette R.,
Malingre M.,
Treumann R. A.
Publication year - 1991
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/90gl02677
Subject(s) - electron , broadband , physics , noise (video) , amplitude , spectral line , computational physics , satellite , plasma , nonlinear system , atomic physics , optics , astronomy , quantum mechanics , artificial intelligence , computer science , image (mathematics)
Broadband electrostatic noise (BEN) bursts whose amplitude sometimes reaches about 100 m V m −1 have been observed by the Viking satellite in the dayside auroral zone. These emissions have been shown to be greatly influenced by nonlinear effects and to occur simultaneously with the observation of particle distributions favouring the destabilization of the electron acoustic mode. It is shown that electron acoustic solitons passing by the satellite would generate spectra that can explain the high‐frequency part of BEN, above the electron plasma frequency.