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Strategy for the inversion of Hinode spectropolarimetric measurements in the quiet sun

机译:在安静的太阳下逆转Hinode光谱极化测量的策略

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摘要

In this paper we propose an inversion strategy for the analysis of spectropolarimetric measurements taken by Hinode in the quiet Sun. The Spectro-Polarimeter of the Solar Optical Telescope aboard Hinode records the Stokes spectra of the Fe I line pair at 630.2 nm with unprecendented angular resolution, high spectral resolution, and high sensitivity. We discuss the need to consider a local stray-light contamination to account for the effects of telescope diffraction. The strategy is applied to observations of a wide quiet Sun area at disk center. Using these data we examine the influence of noise and initial guess models in the inversion results. Our analysis yields the distributions of magnetic field strengths and stray-light factors. They show that quiet Sun internetwork regions consist mainly of hG fields with stray-light contamination of about 0.8.
机译:在本文中,我们提出了一种反演策略,用于分析Hinode在安静的太阳下进行的光谱极化测量。 Hinode上的太阳光学望远镜的分光光度计记录了FeI线对在630.2 nm处的斯托克斯光谱,具有无与伦比的角分辨率,高光谱分辨率和高灵敏度。我们讨论了考虑局部杂散光污染以解决望远镜衍射效应的必要性。该策略适用于磁盘中心宽阔的安静太阳区域的观测。使用这些数据,我们检查了噪声和初始猜测模型对反演结果的影响。我们的分析得出磁场强度和杂散光因子的分布。他们表明,安静的太阳互联网络区域主要由hG场组成,杂散光污染约为0.8。

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