SELF-SIMILAR SOLUTIONS UP TO FLASHPOINT IN HIGHLY WOUND MAGNETOSTATICS

被引:127
作者
LYNDENBELL, D
BOILY, C
机构
[1] Institute of Astronomy, Observatories, Cambridge
关键词
ACCRETION; ACCRETION DISKS; MHD; SUN; MAGNETIC FIELDS; GALAXIES;
D O I
10.1093/mnras/267.1.146
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A general theorem on force-free fields is proved and applied to highly wound field configurations. In axial symmetry such configurations expand along a cone of semi-angle 60-degrees as the system is wound up. The self-similar field structure is determined. After 1/square-root 3 turns the system reaches flashpoint with a discharge around this cone releasing toroidal flux loops to infinity. All poloidal flux then visits infinity.
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页码:146 / 152
页数:7
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