Identification of low-frequency magnetosheath waves
نویسندگان
چکیده
منابع مشابه
Low-frequency waves in the Earth’s magnetosheath: present status
The terrestrial magnetosheath contains a rich variety of low-frequency ([ proton gyrofrequency) fluctuations. Kinetic and fluid-like processes at the bow shock, within the magnetosheath plasma, and at the magnetopause all provide sources of wave energy. The dominance of kinetic features such as temperature anisotropies, coupled with the high-b conditions, complicates the wave dispersion and var...
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We present the results of a statistical analysis of low-frequency fluctuations in the high latitude regions of the dayside magnetosheath using CLUSTER as a wave telescope. Magnetic field observations are used to determine wave propagation directions and wave numbers for selected frequencies. Using observations of the plasma flow velocity we correct for the Doppler shift, in order to calculate f...
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The interaction of the solar wind with the Earth magnetosphere generates a broad variety of plasma waves through different mechanisms. The four Cluster spacecraft allow one to determine the regions where these waves are generated and their propagation directions. One of the tools which takes full advantage of the multi-point capabilities of the Cluster mission is the wave telescope technique wh...
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Ionospheric heating experiments have enabled an e xploration of the ionosphere as a large‐scale natural l aboratory for the study of many plasma processes. These experiments inject high‐frequency (HF) radio waves using high‐power transmitters and an array of ground‐ and space‐based diagnostics. The heating of the plasma has led to many new phenomena such as modulation of the ionospheric current...
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Experimental measurements are presented for studies of low frequency (< 100 kHz) oscillations in a cross-field closed-electron drift Hall discharge. Two azimuthally-placed electrostatic probes are used to identify and extract properties of coherent structures associated with the propagation of instabilities within the discharge channel. The azimuthal component phase velocities are determined fo...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 1998
ISSN: 0148-0227
DOI: 10.1029/98ja02196