Abstract
The energy spectrum of electrons with energies of 0.8–6.0 MeV has been analyzed based on the data of the Express-A2 geostationary satellite and time variations in the fluxes of electrons with energies higher than 0.6 and 2 MeV (according to the GOES-10 satellite data) before and after a weak geomagnetic storm on April 9–10, 2002, which developed during the prolonged (about ten days) recovery phase of a strong magnetic storm on April 6, 2000. The effect of the secondary injection and acceleration caused by an intensification of substorm activity during a weak storm on the electron flux dynamics has been studied for the first time. The energy spectra and time variations in the electron flux dynamics before and after a weak storm have been described based on analytical solutions to the kinetic equation for the electron distribution function with regard to the stochastic acceleration and loss rates. It has been established that there were different acceleration and loss rates before and after the weak storm of April 9–10, 2000.
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Original Russian Text © M.F. Bakhareva, L.V. Tverskaya, K.G. Orlova, 2011, published in Geomagnetizm i Aeronomiya, 2011, Vol. 51, No. 3, pp. 303–308.
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Bakhareva, M.F., Tverskaya, L.V. & Orlova, K.G. Specific features of the relativistic electron flux dynamics during the recovery phase of a magnetic storm on April 6, 2000. Geomagn. Aeron. 51, 299–304 (2011). https://doi.org/10.1134/S0016793211030029
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DOI: https://doi.org/10.1134/S0016793211030029