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

Technical Report · Fri Nov 15 00:00:00 EST 1991

OSTI ID:7174737

Roeder, J L; Angelopoulos, V; Baumjohann, W; Anderson, R R

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
• Resource Relation: Other Information: Original contains color plates: All DTIC and NTIS reproductions will be in black and white
• Country of Publication: United States
• Language: English

Related Subjects

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