Research on the extrapolating method of solar coronal magnetic field

Wang Rui, ray@nao.cas.cn, National Astronomical Observatories of China, China
Yan Yihua, yyh@nao.cas.cn, National Astronomical Observatories of China

Abstract
In this work, the GPU technology was applied in the direct boundary integral equation (DBIE) method to extrapolate solar coronal magnetic fields, and it is found that the computational capacity is greatly raised. A comprehensive comparison between DBIE and several other famous methods was made. The DBIE was also applied to study the three-dimensional magnetic field reconstruction around the solar flare event on 2011 Feb 15 from the real photospheric vector magnetograms of SDO/HMI.