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本文分析了1979年1月一12月紫台3.2 cm、10cm波段上的爆发资料,峰值流量增量ΔS/S≥50％的爆发共计25个,发现所有25个爆发的爆前记录曲线上都存在着周期从几秒一10几秒、振幅约为太阳非扰动分量l％的振荡。这种振荡一般先于爆发几小时或几天。但对于特大爆发,如47GB型爆发,在长时间持续振荡以后,往往在爆前几十分钟或几小时突归宁静,呈平滑记录;对于较小的爆发,脉冲爆或持续期较短的复杂爆,如3S型、20 GRF型以及45C型,在振荡同爆发之间不存在记录曲线的宁静时段,而往往由振荡直接延续到爆发。因此微波辐射的这种振荡特性可能是耀斑区域储能过程的一种反映。
In this paper, the outbreak data of 3.2 cm and 10 cm from January to December 1979 were analyzed. A total of 25 outbreaks of peak flow increment ΔS / S≥50% were found. All the 25 outbreak pre-burst records There are oscillations with periods of a few tenths of a second, amplitudes of about 1% of the sun’s non-perturbing component. This oscillation usually precedes the burst a few hours or days. However, for a large explosion, such as 47GB-type outbreak, after a long period of continuous oscillation, often in the tens of minutes or hours before the burst suddenly quiet, smooth record; for smaller bursts, burst burst or duration of the shorter complex Bursts, such as Type 3S, Type 20GF and Type 45C, do not have a quiet period of recording curve between oscillations and explosions, but often continue directly from oscillations to explosions. Therefore, the oscillation characteristics of microwave radiation may be a reflection of the energy storage process in the flare region.