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The relation of energetic solar X-rays (hν>60 keV) and high frequency microwaves deduced from the periodic bursts of August 8, 1968 flare

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Abstract

Correlated sixteen-second periodic bursts were observed during the flash phase of a class 2b solar flare in energetic X-rays, microwaves, and EUV ionizing radiation. The observations of the periodic structures in the various X-ray energy channels indicate that the structures are predominantly a phenomenon of high energy electrons, E>80 keV. In view of the fact that the periodic X-ray structures were correlated extensively in microwave and EUV frequencies, a plausible conclusion is that these three types of radiation have a common energy source. The acceleration of the energetic electrons must occur deep in the chromosphere where there are sufficient solar constituents that can be ionized to produce the correlated periodic EUV radiation.

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Authors and Affiliations

  1. Faculté des Sciences, Université de Toulouse, Toulouse, France

    George K. Parks

  2. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minn., U.S.A.

    John R. Winckler

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  1. George K. Parks
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  2. John R. Winckler
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Parks, G.K., Winckler, J.R. The relation of energetic solar X-rays (hν>60 keV) and high frequency microwaves deduced from the periodic bursts of August 8, 1968 flare. Sol Phys 16, 186–197 (1971). https://doi.org/10.1007/BF00154511

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  • DOI: https://doi.org/10.1007/BF00154511

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