Universal birefringent filter with a new double passband mode |
| |
Authors: | Jingshan Wang Guoxiang Ai Guofeng Song Bin Zhang Xiangming Ye Yingping Nie Tzihong Chiveh Weanshun Tsay Huanshin Li |
| |
Affiliation: | (1) Beijing Astronomical Observatory, Chinese Academy of Sciences, 100080 Beijing, China;(2) Department of Physics, National Central University, Chung-Li, Taiwan |
| |
Abstract: | This article describes the universal birefringent filter (UBF) which will be mounted at Taiwan. The UBF permits observations of solar images, vector magnetic fields and/or line-of-sight velocity fields in any Fraunhofer line in the wavelength region from 4000 to 7000 with half width from 0.05 to 0.14 . We have tested it at ten Fraunhofer lines under a spectral telescope in Huairou Station of Beijing Astronomical Observatory and obtained the passband profiles. The principles of magnetic field and velocity field measurement with the UBF are also described. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|