暗条电流演化和耀斑储能

THE EVOLUTION OF FILAMENT CURRENT AND SOURCES OF FLARE ENERGY

利用紫金山天文台观测的编号为McMath8207和McMath16171两个活动区光学资料，采用KR和KS两种理论模型，计算了活动区暗条电流演化过程.结果表明：不同的暗条扰动可以导致不同类型的耀斑;出现在强活动区新浮磁流附近的拱状暗条可用KR模型描述，它们往往处于较低层次，具有较强的初始电流，在新浮磁流的挤压和剪切作用下可形成中性电流片，导致高能耀斑发生.而符合KS模型的宁静暗条，在新浮磁流或耀斑波作用下亦可被激活，但其初始电流较弱，往往只能为热耀斑提供能量.

Using the optical data of two active regions, the dynamical evolution of two filaments associated with two kinds of solar flares are analysed The results show that the mutual actions between arch filament and background rnagnetic field could lead to trigger of energtic flares, and the activation of quiescent filaments are always associated with lower energy flares.