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1 results

  • Dynamics of microwave brightness distribution in the giant 24 August 2002 flare loop

  • Veronika E. Reznikova, Victor F. Melnikov, Kiyoto Shibasaki, Sergey P. Gorbikov, Nikolai P. Pyatakov, Irina N. Myagkova, Haisheng Ji
  • Journal:
    Proceedings of the International Astronomical Union / Volume 4 / Issue S257 / September 2008
    Published online by Cambridge University Press:
    01 September 2008, pp. 345-347
    Print publication:
    September 2008
    • Article
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  • We have found a similar tendency of the spatial dynamics at 34 GHz for all major temporal sub-peaks of the burst with the re-distribution of the brightness from the footpoints (on the rising phase of each peak) to the upper part of the loop (on the decay phase). Observed dynamics is interpreted by the re-distribution of accelerated electrons number density with their relative enhancement in the loop top. Results of diagnostics show that the ratio of non-thermal electron number density in the loop top and in the footpoint changes 7 times from the peak to decay phase. Model simulations by solving the Fokker-Planck equation allowed to determine an injection type which is able to result in necessary dynamics of energetic electrons.