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arXiv 0903.2730astro-ph.IM
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小型太阳二次光谱综合望远镜(S5T)样机

The Prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T)

Frans Snik, Radek Melich, Christoph Keller

摘要:

我们提出了小型天气学第二太阳光谱望远镜(S5 T)的设计和原型,它可以自主测量散射偏振信号的日常与高灵敏度和精度。它的数据将被用来调查性质弱,湍流磁场通过汉勒效应在许多线路。此外,这些领域和全球太阳发电机之间的关系可以通过跨越太阳周期的重要部分的观测来揭示。紧凑型仪器的概念是由一个径向偏振转换器实现的,该转换器允许在整个太阳边缘进行"一次性“偏振测量。通过最小化仪器偏振,并在光纤光谱仪中使用FLC调制与快速线扫描相机相结合,可以实现~10^-5的偏振灵敏度。第一个原型的结果成功地证明了这一概念的可行性。

英文摘要:

We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used to investigate the nature of weak, turbulent magnetic fields through the Hanle effect in many lines. Also the relation between those fields and the global solar dynamo can be revealed by spanning the observations over a significant fraction of a solar cycle. The compact instrument concept is enabled by a radial polarization converter that allows for ``one-shot'' polarimetry over the entire limb of the Sun. A polarimetric sensitivity of ~10^-5 is achieved by minimizing the instrumental polarization and by FLC modulation in combination with a fast line-scan camera in the fiber-fed spectrograph. The first prototype results successfully show the feasibility of the concept.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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