Design of a Full Stokes Polarimeter for Chromospheric Measurements with SOLIS/VSM
Design of a Full Stokes Polarimeter for Chromospheric Measurements with SOLIS/VSM
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使用 SOLIS/VSM 进行色球测量的全斯托克斯旋光计设计
DOI：
10.1017/s1743921315004743
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
J. Harvey
中科院分区：
文献类型：
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作者：
S. Gosain;J. Harvey
摘要自70年代以来，美国国家太阳天文台（NSO）一直在进行太阳磁场的天气观测。每日的纵向磁场的全磁盘地图有规律地结合起来，形成卡林顿地图的光球磁通量每太阳旋转。这些地图继续被国际研究界用于与太阳磁性有关的各种研究以及空间气象研究。国家统计局目前的天气观测设施是太阳长期光学天气观测系统，除其他数据产品外，该系统定期提供光球矢量和色球纵向全磁盘磁图。在不久的将来，计划对SOLIS进行升级，以制作色球矢量磁图。我们提出了一种新的偏振调制器包的设计全斯托克斯偏振色球钙II 854.2 nm光谱线。
Abstract The synoptic observations of the magnetic field of the Sun have continued at the National Solar Observatory (NSO) since 1970s. The daily full-disk maps of the longitudinal magnetic field are regularly combined to form Carrington maps of the photospheric magnetic flux per solar rotation. These maps continue to be used by the international research community for a variety of studies related to solar magnetism as well as for space weather studies. The current NSO synoptic facility is the Synoptic Optical Long-term Investigation of the Sun (SOLIS), which regularly provides photospheric vector and chromospheric longitudinal full-disk magnetograms, among other data products. In the near future, an upgrade of SOLIS to produce chromospheric vector magnetograms is planned. We present the design of a new polarization modulator package for full Stokes polarimetry of the chromospheric Ca II 854.2 nm spectral line.