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MAGNETIC MAPS OF PROMINENCES FROM FULL STOKES ANALYSIS OF THE He I D3 LINE

机译:He I D3线全点分析的凸磁图

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We present the first magnetic maps of a prominence, derived from inversion of spectropolarimetric data in He I D3 using the principal component analysis of all four Stokes profiles. This prominence, along with several others, was observed in 2002 May using the Dunn Solar Telescope of the National Solar Observatory/Sacramento Peak Observatory, equipped with the High Altitude Observatory Advanced Stokes Polarimeter. The use of an unocculted instrument allowed us to map the prominence magnetic fields down to the chromospheric limb. Our analysis indicates that the average magnetic field in prominences is mostly horizontal and varies between 10 and 20 G, thus confirming previous findings. However, our maps show that fields significantly stronger than average, even as large as 60 or 70 G, can often be found in clearly organized plasma structures of the prominence.
机译:我们展示了一个突出的第一个磁图,该图由He I D3中的光谱极化数据的反转(使用所有四个Stokes轮廓的主成分分析得出)得出。在2002年5月,使用配备了高空天文台高级斯托克斯旋光仪的国家太阳天文台/萨克拉曼多峰天文台的Dunn太阳望远镜观察到了这一突出现象。使用无遮掩的仪器使我们能够将突出的磁场映射到色球层肢体。我们的分析表明,突出处的平均磁场大部分是水平的,在10至20 G之间变化,从而证实了先前的发现。然而,我们的地图显示,通常在清晰组织的突起等离子体结构中经常发现比平均强度强得多的磁场,甚至高达60或70G。

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