Abstract Radio bursts in the frequency range of 100–1500 kHz, recorded in 1997–2000 on the INTERBALL-1 satellite during the solar flares preceding the strong geomagnetic storms with Dst < −100 nT, are analyzed in this paper. The observed long-wave III-type radio bursts of solar origin at frequencies of 1460 and 780 kHz were characterized by large values of the flux Sf = $ 10^{−15} $ −$ 10^{−17} $ W/$ m^{2} $ Hz and duration longer than 10 min. The rapid frequency drift of a modulated radio burst continued up to a frequency of 250 kHz, which testified that the exciting agent (a beam of energetic electrons) propagated from the Sun to the Earth. All such flares were characterized by the appearance of halo coronal mass ejections, observed by the LASCO/SOHO, and by the presence of a southward $ B_{z} $-component of the IMF, measured on the ACE and WIND spacecraft. In addition, shortly after radio bursts, the INTERBALL-1 satellite has recorded the fluxes of energetic electrons with E > 40 keV.


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    Title :

    Peculiarities of long-wave radio bursts from solar flares preceding strong geomagnetic storms


    Contributors:

    Published in:

    Publication date :

    2009




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    50.93 Weltraumforschung / 39.00 Astronomie: Allgemeines / 55.60 Raumfahrttechnik
    Local classification TIB:    770/3520/8000



    Peculiarities of long-wave radio bursts from solar flares preceding strong geomagnetic storms

    Prokudina, V. S. / Kuril’chik, V. N. / Yermolaev, Yu. I. et al. | Springer Verlag | 2009





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    S. S. Holt / R. Ramathy | NTIS | 1968