Threlfall J, Hood A W, Priest E R
School of Mathematics and Statistics, Mathematical Institute, University of St Andrews, St Andrews, KY169SS UK.
Sol Phys. 2018;293(6):98. doi: 10.1007/s11207-018-1318-1. Epub 2018 Jun 28.
Zipper reconnection has been proposed as a mechanism for creating most of the twist in the flux tubes that are present prior to eruptive flares and coronal mass ejections. We have conducted a first numerical experiment on this new regime of reconnection, where two initially untwisted parallel flux tubes are sheared and reconnected to form a large flux rope. We describe the properties of this experiment, including the linkage of magnetic flux between concentrated flux sources at the base of the simulation, the twist of the newly formed flux rope, and the conversion of mutual magnetic helicity in the sheared pre-reconnection state into the self-helicity of the newly formed flux rope.
拉链式重联被认为是一种机制，用于在爆发性耀斑和日冕物质抛射之前存在的磁通管中产生大部分扭曲。我们针对这种新的重联机制进行了首次数值实验，其中两个初始未扭曲的平行磁通管被剪切并重新连接，形成一个大的磁通绳。我们描述了该实验的特性，包括模拟底部集中磁通源之间的磁链、新形成的磁通绳的扭曲，以及在剪切的重联前状态下相互磁螺旋度向新形成的磁通绳的自螺旋度的转换。
