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Turbulence effects in the cyclotron resonance of monochromatic whistlers
Author(s) -
Brinca Armando L.
Publication year - 1978
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/gl005i010p00839
Subject(s) - whistler , monochromatic color , physics , turbulence , cyclotron , computational physics , cyclotron resonance , monochromatic electromagnetic plane wave , resonance (particle physics) , amplitude , nonlinear system , optics , atomic physics , mechanics , plasma , quantum mechanics
The nonlinear evolution of the monochromatic whistler cyclotron resonance is responsible for a wide variety of geomagnetospheric phenomena whose interpretation has not taken into account the concomitant existence of whistler turbulence. Consideration of this whistler noise in the evolution of the coherent cyclotron resonance permits placing upper temporal bounds on the validity of the noiseless description of the interaction, and obtaining estimates for the relative intensity of the coherent mode and turbulent fields required for the onset of a typical nonlinear effect to occur. Particularization to the Siple wave injection experiment suggests that the influence of turbulence might be significant for monochromatic whistlers with weak or medium amplitudes (< 100 mγ).