High-precision imaging polarimetry in the Hα line

被引：0
|
作者：
Hanaoka, Y. [1 ]
机构：
[1] Natl Astron Observ, Div Solar & Plasma Astrophys, Mitaka, Tokyo 1818588, Japan
来源：
Solar Polarization 4 | 2006年 / 358卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We developed a polarimeter for Ha observation with ferroelectric liquid crystals, and installed it into the Solar Flare Telescope of NAOJ. The polarimetric sensitivity is of the order of 10(-4), which meets the requirements for measuring the linear polarization due to the Zeeman effect in Ha. When doing polarimetry with such high sensitivity, we must take into account some polarimetric errors that have been ignored so far. In this paper, the sources of these errors are presented, and the achievements and limitations of our polarimeter are discussed.
引用
收藏
页码：185 / 188
页数：4
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