Simultaneous acceleration of electrons and ions in solar flares

Details Simultaneous acceleration of electrons and ions in solar flares Simultaneous acceleration of electrons and ions in solar flares

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305..291f&link_type=abstract

Nature (ISSN 0028-0836), vol. 305, Sept. 22, 1983, p. 291, 292.

Physics

141

Particle Acceleration, Plasma-Particle Interactions, Solar Electrons, Solar Flares, Gamma Rays, Ions, Solar Maximum Mission, Solar Neutrons, Solar X-Rays

Scientific paper

Data from the observations of two gamma ray and electron bremsstrahlung X-ray emitting solar flares, on June 7 and 21, 1980, were used to examine the relative starting times of the energetic ion and electron interactions. The data were gathered by the SMM, which was viewing the 2.223 MeV line from H-1(n, gamma)H-2, the 0.511 MeV line from electron-positron annihilation, the prompt nuclear lines at 4.44 and 6.13 MeV from excited C-12 and excited O-16, and the energetic solar neutrons at 1 AMU. Excess gamma ray and X-ray emissions were detected at relatively the same times during both flares in all energy bands, and were attributed to ion-induced emissions. The timing of the peaks of electron and ion activity indicate that both electrons and ions are accelerated to their peak activity in under 5 sec.

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