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Bipolar Magnetic Structures in Sunspot Penumbrae

机译：Sunspot Penumbrae的双极磁性结构

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We present a study of bipolar, sea-serpent-like structures in the penumbra of sunspots. Our analysis is based on longitudinal magnetograms and full Stokes spectra of AR 10923 taken with the NFI and SP instruments of Hinode. The circular polarization maps reveal the presence of many elongated structures in the mid penumbra and beyond. They consist of two opposite-polarity patches that move together as a single entity toward the outer penumbral boundary, where they become moving magnetic features. Their Stokes profiles suggest a complex magnetic topology. The existence of opposite polarities in the penumbra is well known from previous analyses, but this is the first time that their bipolar nature is unveiled. Our observations also demonstrate that they are intimately connected with the Evershed flow. These structures provide new constraints to theoretical and numerical models of sunspots.
机译：我们在Sunpots的Penumbra展示了对双极，海蛇状结构的研究。我们的分析基于AR 10923的纵向磁极和全斯托克斯光谱，采用NFI和Hinode仪器拍摄。圆形偏振图揭示了在半岛和超越中间的许多细长结构的存在。它们由两个相反极性贴片组成，其作为单个整体边界的单个实体一起移动，在那里它们变得移动磁性。他们的Stokes型材表明了复杂的磁拓扑。从之前的分析中众所周知，Penumbra中的相反极性存在，但这是他们的双极性首次揭开。我们的观察结果还证明了它们与探测器的流程密切相关。这些结构为太阳黑子的理论和数值模型提供了新的约束。

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