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Observations of correlated broadband electrostatic noise and electron-cyclotron emissions in the plasma sheet. Technical report

Technical Report ·
OSTI ID:7174737
; ; ;
Electric field wave observations in the central plasma sheet of the earth's magnetosphere show the correlated occurrence of broadband electrostatic noise and electrostatic electron cyclotron harmonic emissions. A model is proposed in which the broadband emissions are electron acoustic waves generated by an observed low energy electron beam, and the cyclotron emissions are generated by the hot electron loss cone instability. The high degree of correlation between the two emissions is provided in the model by the presence of the cold electron beam population, which allows both of the plasma instabilities to grow.
Research Organization:
Aerospace Corp., El Segundo, CA (United States). Technology Operations
OSTI ID:
7174737
Report Number(s):
AD-A-255002/8/XAB; TR--92(2940)-1; CNN: F04701-88-C-0089
Country of Publication:
United States
Language:
English

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Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
BREMSSTRAHLUNG
CORRELATIONS
CYCLOTRON RADIATION
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
EMISSION
HARMONICS
INSTABILITY
LEPTON BEAMS
LOSS CONE INSTABILITY
MATHEMATICAL MODELS
OSCILLATIONS
PARTICLE BEAMS
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA SHEET
PLASMA WAVES
RADIATIONS