ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We studied the evolutional characteristics of fine structures in Hα flare emitting regions and their relation to X-ray and microwave emissions for selected events observed with the 60 cm Domeless Solar Telescope at Hida Observatory, University of Kyoto. The principal conclusions of this investigation are: (1) Hα kernel consists of some finer bright points or Hαflare points whose individual size is less than 1 arc sec. (2) Impulsive brightnenings of Hα flare points occurred simultaneously with the spikes of the hard X-ray and microwave bursts within the time resolution of our Hα observations which varied from 1 to 10 s. (3) It is concluded that fast electron beams must be the principal mechanism of heating Hα flares during the impulsive phase of a flare.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00651119
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