In the Sun, the flows of hot plasma drive a dynamo that generates a global magnetic field as well as smaller-scale local fields. The existence of a magnetic field in turn affects the motion of plasma so that complex dynamic characteristics can be observed. In this Letter, we give an analysis on the localized amplification of magnetic fields in front of a moving pore. Moving with the pore, the formation of semicircular penumbra-like structures and enhancement of horizontal fields can be observed simultaneously. The increasing horizontal magnetic fields in a penumbra-like area probably did not come from the pore, since the penumbra-like structures were not connected to the pore and a magnetic gap existed. The possibility of flux emergence can also be safely excluded. We further report that horizontal magnetic fields in the front of a moving pore are amplified in accordance with the MHD induction equation after necessary yet reasonable simplification. All characteristics show that ...

中文翻译：

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太阳光球中与快速移动的孔相关的磁场的局部放大

在太阳下，热等离子体流驱动发电机，该发电机产生全局磁场以及较小规模的局部场。磁场的存在继而影响等离子体的运动，从而可以观察到复杂的动态特性。在这封信中，我们对移动的孔前磁场的局部放大进行了分析。随着孔隙的移动，可以同时观察到半圆形半影状结构的形成和水平场的增强。在半影状区域中增加的水平磁场可能不是来自孔隙，因为半影状结构没有连接到孔隙并且存在磁隙。通量出现的可能性也可以安全地排除。我们进一步报告，在经过必要但合理的简化之后，根据MHD感应方程放大了移动孔前面的水平磁场。所有特征表明...