The Solar Magnetic Field as a Coronal Hole Extension Forms: Effects of Magnetic Helicity and Boundary Conditions

被引：0

作者：

J. R. Clegg

B. J. I. Bromage

P. K. Browning

机构：

[1] University of Central Lancashire,Centre for Astrophysics

[2] UMIST,Dept. of Physics

来源：

Space Science Reviews | 1999年 / 87卷

关键词：

force-free; corona; magnetic fields;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An analytical solution is presented for linear force fields within a spherical shell, representing the solar corona. Allowing for a global magnetic helicity, we find magnetic fields over the entire corona with realistic inner boundary conditions obtained from transformation and extrapolation of photospheric magnetograms and considering alternative outer boundary conditions. Such fields are found for the well known coronal hole extension event of August 1996.

引用

页码：145 / 148

页数：3