Energetics of Nonthermal Electrons and Protons in Intense Solar Flares

Details Energetics of Nonthermal Electrons and Protons in Intense Solar Flares Energetics of Nonthermal Electrons and Protons in Intense Solar Flares

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....6.3191y&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

We analyze Yohkoh gamma-ray energy spectra of X-class solar flares on October 27, 1991 (X6.1), November 6, 1997 (X9.4), July 14, 2000 (X5.7) and November 24, 2000 (X2.3) to study the energy content of nonthermal electrons and protons. The accelerated electron and proton spectra are derived from a spectral analysis of the continuum and lines above 1 MeV. The energy content in >1 MeV and >10 MeV protons are estimated to be 6x1028 4x1030 and 2.5x1028 -5x1029 ergs, respectively. We study the flare to flare variation in the energy contents of > 1 MeV electrons and >10 MeV protons. Ratios of > 1 MeV electrons to >10 MeV proton energy contents vary within an order of magnitude.

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