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1 results

  • Nonlinear force-free magnetic field extrapolation in AR 11158 by GPU-DBIE

  • Rui Wang, Yihua Yan
  • Journal:
    Proceedings of the International Astronomical Union / Volume 8 / Issue S294 / August 2012
    Published online by Cambridge University Press:
    18 July 2013, pp. 579-580
    Print publication:
    August 2012
    • Article
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  • A GPU-based acceleration for the direct boundary integral equation method (GPU-DBIE) to extrapolate solar coronal magnetic fields is developed, which is about 1000 times faster than the original DBIE. The 3-d coronal magnetic field is reconstructed for NOAA 11158 on 14-Feb-2011 with the SDO/HMI vector magnetogram as bottom boundary condition. The extrapolated results agree well with the projected SDO/AIA, EUV loops and the STEREO EUV sideviews, which verifies the correctness of our GPU-DBIE method. It is also found that the group of bright EUV loops along magnetic neutral lines agree well with current lines, which may have played an important role in the flare process of the active region.