The reconnection rate of magnetic fields.
The reconnection rate of magnetic fields.
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DOI：
10.1086/151959
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发表时间：
1973-02
期刊：
影响因子：
--
通讯作者：
E. Parker
中科院分区：
文献类型：
--
作者：
E. Parker
当相反磁场的两个区域被压在一起，而没有足够的流体压力将它们分开时，磁力线就会迅速重新连接。有人认为，快速重联是太阳耀斑的基础，在磁层顶和地磁尾部的中性片中，快速重联对地磁活动起着至关重要的作用。指出流体从场间逸出是磁流体力学交换不稳定性的结果，导致重联率通常是阿尔芬速度的一小部分。
Rapid reconnection of magnetic lines of force occurs whenever two regions of opposite field are pressed together without sufficient fluid pressure between to keep them apart. It has been suggested that rapid reconnection is the basis for solar flares, and that in the magnetopause and the neutral sheet of the geomagnetic tail it plays an essential role in geomagnetic activity. It is pointed out that the escape of fluid from between the fields is the result of magnetohydrodynamic exchange instabilities, leading to reconnection rates which are generally some fraction of the Alfven speed.