Narrowband dm-spikes as indication of flare mass ejection |
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Authors: | M Karlický |
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Institution: | (1) Astronomical Institute of the Czechoslovak Academy of of Sciences, 25165, Czechoslovakia |
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Abstract: | The paper presents the radio spectra of seven solar flares (May 16, 1981; August 19, 1981; January 31, 1982; February 1, 1982; June 3, 1982; June 7, 1982; and July 12, 1982), whose common feature is the presence of narrowband dm-spikes. A close relationship was found among dm-spikes, dm-pulsations and type II radio bursts. Moreover, all flares under study showed indications of a mass ejection process. Based both on these facts and on the theory of dm-spikes (Kuijpers et al., 1981), our observations can be explained by runaway processes in several small regions within the ejected and tearing magnetic structure of the flare. |
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