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High Resolution Observation of Hα Solar Flares and Temporal Relation Between Hα and X-ray, Microwave Emission

  • H. Kurokawa
  • T. Kitahara
  • Y. Nakai
  • Y. Funakoshi
  • K. Ichimoto

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: (l)Hα kernel consists of some finer bright points or Hα flare 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.

Keywords

Solar Phys Solar Flare Bright Point Impulsive Phase Microwave Emission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • H. Kurokawa
    • 1
  • T. Kitahara
    • 1
  • Y. Nakai
    • 1
  • Y. Funakoshi
    • 1
  • K. Ichimoto
    • 1
  1. 1.Kwasan and Hida ObservatoriesUniversity of KyotoKamitakara, GifuJapan

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