Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986baicz..37....1k&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 37, Jan. 1986, p. 1-7.
Astronomy and Astrophysics
Astronomy
4
Solar Electrons, Solar Flares, Solar Oscillations, Solar Radio Bursts, Electric Field Strength, Electron Acceleration, Hot Electrons, Magnetically Trapped Particles, Shock Waves, Solar Magnetic Field
Scientific paper
In the initial phase (12.51-12.53 UT) of the flare of August 19, 1981, an interesting group of narrowband dm-spikes, intermediate drift bursts and pulsations was observed. This paper tries to explain this group of bursts by an uniform model. It is shown that all these bursts have connections with acceleration and trapping of superthermal electrons in the flare loop. The parameters of the flare loop and the electric field in the acceleration process were estimated. The same 'period' of intermediate drift bursts and pulsations has been explained. In the following time, the flare loop under study explodes and a shock wave (type II radio burst) is generated at the relatively high altitude of about 100,000 km above the photosphere. This process was connected with the radio flux decrease on 10 cm.
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