Electron beams and associated rapid fluctuations in solar flares

Details Electron beams and associated rapid fluctuations in solar flares Electron beams and associated rapid fluctuations in solar flares

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..131..337l&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 131, Feb. 1991, p. 337-350. Research supported by NNSFC, Chinese Academy of Sciences, and N

Physics

3

Electron Beams, H Alpha Line, Solar Flares, Solar Radio Bursts, Solar X-Rays, Type 3 Bursts, Chromosphere, Microwave Frequencies, Radio Emission, Solar Atmosphere

Scientific paper

Recent observations show that the rapid fluctuations in radio, hard X-ray, and H-alpha emissions are closely associated with type III and microwave (or decimetric) bursts during the impulsive and/or preimpulsive phases of solar flares. In order to clarify the physical processes of these observed phenomena, this paper proposes a tentative model of two acceleration regions A (source of type III bursts) and B (source of microwave or decimetric bursts) formed in the neutral sheet and at the top of a flaring loop, respectively; and also suggests that the electron beams streaming from region A and/or region B downward to the chromosphere are responsible for the rapid fluctuations in the different emissions mentioned above during the impulsive and/or preimpulsive phases of solar flares.

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