Abstract By analyzing measurements of the precipitating electrons and ions obtained by the low energy particle experiment on board a semi-polar orbiting satellite EXOS-C launched in 1984, we address two issues. The first is the source of electrons forming the precipitation events observed as spike-like flux enhancements in the polar cap. Information derived from the conjugacy and the temperature is used to examine the adequacy of two possible sources, namely the plasma sheet and the solar wind. The second issue is the acceleration mechanism of the inverted V electrons in the auroral region. The quantitative model of the field-aligned acceleration formulated by Lyons is compared with the observation and a fair agreement is found.


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    Title :

    EXOS-C (OHZORA) observations of polar cap precipitations and inverted V events


    Contributors:
    Mukai, T. (author) / Kaya, N. (author) / Obara, T. (author) / Kitayama, M. (author) / Nishida, A. (author)

    Published in:

    Advances in Space Research ; 8 , 9-10 ; 363-372


    Publication date :

    1989-01-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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