Gamma radiation in the impulse phase of solar flares

A.L. Lysenko

Ioffe Institute, Politekhnicheskaya 26, Saint Petersburg 194021, Russia Usually the range of solar flare emission has high-energy limit at tens of keV. Nevertheless during the observational history (about 50 years) about one hundred events were registered in the gamma-ray range with energies extending up to tens and even hundreds of MeV. In this talk we present an overview of the mechanisms responsible for high energy emission of solar flares illustrated by the time-resolved analysis of the hard X-ray and gamma-ray spectrum of the X9.3 class flare occured at 2017, September, 6.
Russian abstract

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