Topological differences between force-free field models

被引:11
作者
Hudson, TS [1 ]
Wheatland, MS [1 ]
机构
[1] Univ Sydney, Sch Phys, Res Ctr Theoret Astrophys, Sydney, NSW 2006, Australia
关键词
D O I
10.1023/A:1005176500346
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The potential and linear force-free field models for the magnetic field in the solar corona are often used in the analysis of flares. The field is calculated using boundary values measured in the low solar atmosphere. The topology of the field calculated using these models is then compared to the position of flare emissions. We demonstrate that the topology of the field according to each of these models, with the same boundary conditions in place, is not in general even qualitatively equivalent. An argument is given for a similar discrepancy between a linear force-free field solution and a nonlinear force-free field solution.
引用
收藏
页码:301 / 310
页数:10
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