Gamma-ray lines and neutrons from solar flares

Details Gamma-ray lines and neutrons from solar flares Gamma-ray lines and neutrons from solar flares

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...86..395r&link_type=abstract

(Japan Society for the Promotion of Science and National Science Foundation, U.S.-Japan Seminar on the Recent Advances in the Un

Physics

41

Energy Spectra, Gamma Rays, Line Spectra, Neutrons, Particle Production, Solar Flares, Solar Neutrons, Bremsstrahlung, High Energy Interactions, Particle Interactions, Positrons, Relativistic Electron Beams

Scientific paper

The energy spectrum of accelerated protons and nuclei at the site of a limb flare was derived by a technique, using observations of the time dependent flux of high energy neutrons at the earth. This energy spectrum is very similar to the energy spectra of 7 disk flares for which the accelerated particle spectra was previously derived using observations of 4 to 7 MeV to 2.223 MeV fluence ratios. The implied spectra for all of these flares are too steep to produce any significant amount of radiation from pi meson decay. It is suggested that the observed 10 MeV gamma rays from the flare are bremsstrahlung of relativistic electrons. Previously announced in STAR as N83-19695

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