太阳黑子运动引起的耀斑与活动区的耦合

利用紫台赣榆站太阳精细结构望远镜拍摄的色球和光球照片，研究了1990年11月6日至13日NOAA6361活动区的磁位形演化和耀斑产生区域，发现该活动区的活动主要集中在11日和12日两天还观测到新老活动区的碰撞耦合及耦合界面处小纤维（fibril）的快速变化，这些现象是由于前导黑子之一的p1黑子的连续几天的运动造成的．所有的活动也主要集中在P1黑子的周围．

Solar Flares and the Coupling of Active Regions Caused by Spot Motion

Using the Ha-filtergrams obtained with our 26cm solar vacuum telescope, we have studied the evolution of magnetic field structure and the flares and flows in Active Region NoAA 6361, 1990 November 6 -13. We find that the flares are mostly triggered by rapid westward motion of the preceding spot p1, and all flares occur around spot p1. Also, the successive invasion motion of spot p1 causes this active region coupled with an old and dying active region to the southwest on November 11. At the separatrix, a lot of compact flares are observed, and the fibrils linking the two active regions changed their form very quickly indeed. The active phenomena do not cease until the end of the coupling. The large-scale mass motion on November 12 was due to extremely high shear and gradient in the magnetic field caused by spot p1 moving into the opposite polarity field. When spot p1 stopped moving on November 13, all activities mentioned above also disappeared completely.