A new magnetograph system for the observation of the multi-height vector magnetic field of the Sun

作者：Hanaoka Yoichiro^*

来源：Advances in Space Research, 2007, 39(11): 1730-1733.

DOI：10.1016/j.asr.2007.01.006

• Sun
• magnetic field
• polarimetry

We developed a high-sensitivity imaging polarimeter using ferroclectric liquid crystals, and installed it in the Solar Flare Telescope to measure the polarization in the H-alpha line and the Fe 16303 line simultaneously. Now we are operating regular polarimetry observations for both the photosphere and the chromosphere with this advanced system. It will enable us to study the three-dimensional evolution of the vector magnetic field of active regions, which is essentially important to study active phenomena on the Sun. A brief description of the instrument and an example of the polarimetry data taken in the H-alpha and the Fe 16303 lines simultaneously are presented in this paper.

• 出版日期2007
• 单位中国科学院国家天文台