High time resolution observations of solar radio emission at four frequencies: evidence for energy release in microflares |
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| Authors: | Rui-xiang Xie Min Wang Qian Song |
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| Institution: | Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China |
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| Abstract: | As evidence for energy release in microflares, high time resolution observations of solar radio emission obtained with our “synchronous observation system of solar radio radiation with high time resolution at four frequencies (1.42, 2.13, 2.84 and 4.26 GHz)” from December 1989 to April 1993 are presented in this paper. The observed events include weak ms spikes, “spike-likes”, fast pulsations as well as two kinds of newly discovered fast fine structures, i.e., microwave type III bursts and microwave patch-like structures. A statistical study of the duration of fast fine structures has been made and on its basis the various types of phenomena are illustrated with actual examples. |
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| Keywords: | microflare radio observation high time resolution |
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