Abstract Wave power measurements based on the AMPTE UKS satellite data in the ELF/VLF frequency range can show a spin modulation effect. Analysis of this spin modulation for data collected near the Earth's magnetopause indicates that these waves are probably whistler-mode waves propagating parallel or almost parallel to the ambient magnetic field. The energy source of these waves is dentified with the anisotropy of the electron distribution function (T ⊥ > T ∥). The intensification of these waves near the Earthward boundary of the Earth's magnetopause is explained in terms of wave trapping in this region. The relevance of this mechanism to actual observations of plasma parameters and waves in the vicinity of the magnetopause is demonstrated using examples of magnetopause crossings by AMPTE UKS satellite.


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    Title :

    Observations and theory of whistler-mode waves in the vicinity of the earth's magnetopause


    Contributors:

    Published in:

    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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