A Test of the Polarization Analyzer Mounted on the Solar Spectral Telescope at Yunnan Observatory

Zhong Shuhua; Gu Xiaoma; Zhang Xiaoyu; Cheng Xuekun

Publications of the Yunnan Observatory > 1998 > 0(3): 57-63.

Zhong Shuhua, Gu Xiaoma, Zhang Xiaoyu, Cheng Xuekun. A Test of the Polarization Analyzer Mounted on the Solar Spectral Telescope at Yunnan Observatory[J]. Publications of the Yunnan Observatory, 1998, (3): 57-63.

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A Test of the Polarization Analyzer Mounted on the Solar Spectral Telescope at Yunnan Observatory

Yunnan Observatory, The Chinese Academy of Sciences, Kunming 650011

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Received Date: September 21, 1997
Revised Date: November 02, 1997
Published Date: July 14, 1998

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Abstract

Abstract

A testing is given in this paper for the polarization analyzer which is mounted on the solar spectral telescope of Yunnan Observatory. The test is carried out by using the 40 cm horizontal solar spectrograph at Yunnan Observatory. Four profiles of stokes parameters(I、Q、U、V)are obtained for the sunspot appeared in the active region YN69 on solar disk on June 22, 1995. These profiles are compared with those computed theoretically and both of them are identical in features although a correction of polarization produced by the spectrograph is not performed. It is shown that the polarization analyzer is desirable and four stokes profiles of a sunspot are available with the solar spectral telescope.
- Polaring analyzer,
- Stokes profiles

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