Downward shift of the acceleration/injection region during solar flares

Details Downward shift of the acceleration/injection region during solar flares Downward shift of the acceleration/injection region during solar flares

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...248l..77k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 248, Sept. 1, 1981, p. L77-L82.

Astronomy and Astrophysics

Astrophysics

22

Electron Acceleration, Solar Electrons, Solar Flares, Solar X-Rays, Type 3 Bursts, Chromosphere, Electron Density (Concentration), High Energy Electrons, Plasma Waves, Shock Waves, Solar Corona, Solar Magnetic Field

Scientific paper

Simultaneous observations of impulsive hard X-rays and type III radio bursts associated with two recent solar flares have been analyzed in order to study the characteristic increase in the starting frequency of fast-drift type III bursts during the impulsive phase. The time variation of the starting frequency has been found to be similar to that of approximately 35 keV X-rays, especially during the increasing phase. A similar variation has been observed for the low frequency cutoff of these bursts. The observations are consistent with a systematic downward shift of the electron acceleration/injection region during the impulsive phase of a solar flare.

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