Microwave Type III Burst Group in the 1993 October 2 Flare |
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Authors: | Qijun Fu Zhihai Qin Yuying Liu Guangli Huang |
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Institution: | (1) Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing, 100080, China;(2) Dept. of Astronomy, Nanjing Univ., Nanjing, 210008, China;(3) Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210008, China |
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Abstract: | Microwave Type III bursts with positive frequency drifting rate were found by Stahli and Benz (1987) for first time. Type III events are especially interesting because they are well-known to be signatures of electron beams in coronal plasma, and they are effective means for diagnosting of source plasma. A microwave burst consisting of some microwave type III burst groups was registered at Beijing Astronomical Observatory with the 2545–2645–2840 MHz synchronous observing system. The distributions of frequency drifting rate, half power duration, and intensity for each impulse in the groups have been statistically analysed. From this analysis, some important parameters for the dynamic process in the flare are deduced and discussed. |
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