【摘要】 <正> 1971年1月质子耀斑活动区(McMath 11128)是第20太阳活动周的重要活动区之一,在1月24日产生了3B级大质子耀斑,该耀斑的位置为18°N,49°W。这次耀斑爆发是由相隔10分钟的两个闪相爆发组成。观测到了日冕冲击波,两个激波的传播方向是正交的。伴随有0.5—3(?)的硬X射线爆发,喷出大量高能质子和电子。在耀斑爆发结束(23~n47~m)后,日象仪观测到源有类喷状结构。更多还原

【Abstract】 In this paper, the evolution of S-component, flare activities (f-number) and the Type-I source associated with the active region McMath 11128 (Jan. 1971) has been analysed. It is found that the method of cumulative summation curves can be used successfully for this active region to predict the occurence of the proton flare. It is also found that before the occurence of the proton flare the Type-I source disappeared and the S-component at cm wavelength enhanced. This might be a result of the change of the magnetic configuration above the active region.更多还原