冠状磁场重建的加权优化程序
Optimization code with weighting function for the reconstruction of coronal magnetic fields
摘要:
我们开发了一个非线性无力和非无力日冕磁场的重建代码。三维磁场的数值计算与优化原则的帮助。力自由和非力自由代码被编译在一个程序中。无力方法需要光球矢量磁图作为输入。非力自由代码还需要与层析反演代码相结合的视线积分冠状面密度分布。以前的优化方法已被用来计算磁场使用所有六个边界的计算框。在这里,我们扩展了这种方法,并显示如何冠状磁场可以重建只有从底部边界,其中的边界条件与矢量magnetographs。该方案计划用于立体声任务。
英文摘要:
We developed a code for the reconstruction of nonlinear force-free and non-force-free coronal magnetic fields. The 3D magnetic field is computed numerically with the help of an optimization principle. The force-free and non-force-free codes are compiled in one program. The force-free approach needs photospheric vector magnetograms as input. The non-force-free code additionally requires the line-of-sight integrated coronal density distribution in combination with a tomographic inversion code. Previously the optimization approach has been used to compute magnetic fields using all six boundaries of a computational box. Here we extend this method and show how the coronal magnetic field can be reconstructed only from the bottom boundary, where the boundary conditions are measured with vector magnetographs. The program is planed for use within the Stereo mission.
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