摘要
本文详细分析了1989年7月5日有连续发射的耀斑对应的活动区磁场。得出:磁场强度和黑子面积分布都有“前导大后随小”的特征;两异极黑子挤压位置的中性线呈“V”形;产生连续发射的四个耀斑核,除一个位于宁静背景上外,其余三个均位于中性线两侧;连续发射最明显的B点耀斑核位于磁剪切和磁挤压的交点以及磁场梯度最大(0.52高斯公里^(-1))的位置上。
In this paper, the magnetie field of the active region corresponding to the flare with the continuum emission, which erupted on July 5, 1989, is analysed. The results show that the magnetic intensity is stronger and the sunspot area is larger when the preceding sunspot appears, and the former is weaker and the latter is smaller when the following sunspot occurs. The neutral line between the two regions with opposite magnetic polarities is like the 'V' letter in shape, three of the four flare cores are situated on either side of the neutral line, except that the other one is situated in the quiet background and the flare core with the most obvious continuous emission is situated at the point of intersection between the magnetic shear and extruding lines, where there is the maximum gradient of the magnetic field (0.52GS/km).
出处
《云南天文台台刊》
CSCD
1992年第1期42-46,共5页
Publications of the Yunnan Observatoty
