Microwave diagnostics of energetic electrons in flares

Details Microwave diagnostics of energetic electrons in flares Microwave diagnostics of energetic electrons in flares

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..104..243k&link_type=abstract

(CNR, Workshop on Radio Continua during Solar Flares, Duino, Italy, May 27-31, 1985) Solar Physics (ISSN 0038-0938), vol. 104, M

Physics

33

Electron Acceleration, High Energy Electrons, Microwave Emission, Solar Electrons, Solar Flares, Electron Distribution, Electron Energy, Solar X-Rays, Stellar Models, Synchrotron Radiation, Temporal Resolution

Scientific paper

Electrons accelerated during solar flares are revealed by their electromagnetic radiation in different spectral ranges, emitted at different heights in the solar atmosphere. The observational analysis points to a common and continuous injection of particles. Based on this result, a quantitative investigation of the hard X-ray and microwave emissions observed during the June 29, 1980 flare at 11:40 UT has been performed. This is the first modelization that takes into account both the inhomogeneity of the microwave source region and the dynamical evolution of the electron population. Results of the model computations demonstrate that during the most energetic phase of the event, both hard X-rays and microwaves are described by electron populations resulting from the same injection function, and that the total numbers of electrons required for both emissions are compatible. Account for the inhomogeneity of the microwave source is shown to be a necessary condition for the interpretation of observed spectra.

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