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Direct Boundary Integral Formulation for Solar Force-Free Magnetic Fields View all abstracts by submitter

Yihua Yan   Submitted: 2005-11-14 20:49

A direct boundary integral formulation for a force-free magnetic field with finite energy content in the semi space above the Sun is presented. This is a new formulation for a 3-D non-linear force-free field in which the boundary data can easily be incorporated. We have proposed an optimal method to numerically find the non-constant- α force-free field solution at any position in semi-space. Therefore the present computational procedure for the new representation is actually a point-wise method so that no volume integration is needed. A test case study has been carried out to demonstrate the convergence, accuracy and efficiency of the numerical procedures. The computational procedure is quite robust. The agreement between numerical and exact results validate the correctness and merits of the new formulation and computational procedure proposed. The application of the new direct boundary integral formulation to practical solar magnetic field problems is straightforward and prospective.

Authors: Yihua Yan, Zhuheng Li
Projects: None

Publication Status: ApJ, 20 February 2006, v638 2 issue (in press)
Last Modified: 2005-11-14 20:49
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