Generation of electromagnetic fpe and 2fpe waves in the Earth's electron foreshock via linear mode conversion
摘要：
This study examines the mode conversion from electrostatic to electromagnetic waves near the plasma frequency in the Earth's electron foreshock. The conversion and reflection coefficients are obtained by solving coupled differential equations in a weakly magnetized warm plasma with a longitudinal linear density gradient. Results indicate that the foreshock first harmonic electromagnetic emissions and the backward-propagating Langmuir waves required for the generation of the second harmonic electromagnetic waves may be efficiently produced by the linear conversion process in an inhomogeneous plasma.
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关键词：
Interplanetary Physics: Planetary bow shocks Interplanetary Physics: Plasma waves and turbulence Magnetospheric Physics: Plasma waves and instabilities Magnetospheric Physics: Solar wind/magnetosphere interactions
DOI：
10.1029/98GL01989
被引量：
年份：
1998
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