Abstract Observations at Sanae, Antarctica of pulsating aurora with a low light level TV system have been combined with simultaneous records of narrow band VLF emissions. Both auroral light and VLF intensities display a significant peak at 1.3 ± 0.3 Hz in the power spectrum. The peaks in the auroral light intensity variations lead those in the VLF by times between zero and 200 ms, as revealed by cross-spectral analysis. Furthermore the 4 kHz VLF component leads the 3.5 kHz component by zero to 100 ms. These results are explained in terms of cyclotron resonance between the auroral electrons and VLF in a region displaced 8000 km from the equatorial plane.


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    Titel :

    Correlated pulsations in auroral light intensity and narrow band VLF emissions


    Beteiligte:
    Hansen, H.J. (Autor:in) / Scourfield, M.W.J. (Autor:in) / Rash, J.P.S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1987


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch