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首页> 外文期刊>Chinese Journal of Astronomy and Astrophysics >Vector Magnetic Field Measurement of NOAA AR 10197
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Vector Magnetic Field Measurement of NOAA AR 10197

机译：NOAA AR 10197的矢量磁场测量

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摘要

A set of two-dimensional Stokes spectral data of NOAA AR 10197 obtained by the Solar Stokes Spectral Telescope (S~3T) at the Yunnan Observatory are qualitatively analyzed. The three components of the vector magnetic field, the strength H, inclination γ and azimuth χ, are derived. Based on the three components, we contour the distributions of the longitudinal magnetic field and transverse magnetic field. The active region (AR) has two different magnetic polarities apparent in the longitudinal magnetic map due to projection effect. There is a basic agreement on the longitudinal magnetic fields between the S~3T and SOHO/MDI magnetograms, with a correlation coefficient ρ_(Bl) = 0.911. The transverse magnetic field of the AR has a radial distribution from a center located in the southwest of the AR. It is also found that the transverse magnetic fields obtained by Huairou Solar Observing Station (HRSOS) have a similar radial distribution. The distributions of transverse magnetic field obtained by S~3T and HRSOS have correlation coefficients, ρ_(Azimu) = 0.86 and ρ_(Bt) = 0.883, in regard to the azimuthal angle and intensity.
机译：定性分析了云南天文台太阳斯托克斯光谱望远镜（S〜3T）获得的NOAA AR 10197的二维斯托克斯光谱数据。推导出矢量磁场的三个分量，即强度H，倾角γ和方位角χ。基于这三个分量，我们绘制出纵向磁场和横向磁场的分布轮廓。由于投影效应，有源区（AR）具有在纵向磁图中可见的两个不同的磁极性。在S〜3T和SOHO / MDI磁图之间的纵向磁场有一个基本的共识，相关系数ρ_（Bl）= 0.911。 AR的横向磁场具有从位于AR的西南部的中心开始的径向分布。还发现，怀柔太阳观测站（HRSOS）获得的横向磁场具有相似的径向分布。关于方位角和强度，由S〜3T和HRSOS获得的横向磁场分布具有相关系数ρ_（Azimu）= 0.86和ρ_（Bt）= 0.883。

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