天文学进展2017，Vol.35Issue(2)：255-266,12.DOI:10.3969/j.issn.1000-8349.2017.02.07
中国丽江积分视场光纤光谱仪分辨能力实验室测试结果
The Test Results of Spectral Resolution of China Lijiang Integral Field Unit
摘要
Abstract
Integral Field Unit (IFU) can obtain the spatial and spectral information of the observed sources simultaneously, so it is a strong tool to study kinematics, abundances, star formation, structures of galaxies. China Lijiang Integral Field Unit (CHILI) is the first IFU for astronomical night observation in China which was been installed on the 2.4m telescope in Lijiang. The field-of-view of CHILI is 71′′× 65′′and it has 494 fibers. Each fiber corresponds to 3.2′′ on sky and the filling factor is greater than or equal to 96%. We tested CHILI in the University of Texas at Austin before it was shipped to China. This test focus on the blue part of CHILI for which we took bias, flat, dark and lamps data. We applied the wavelength calibration and calculate the spectral resolution of CHILI. The results show that the spectral wavelength coverage of CHILI blue part ranges from 3500 ?Ato 5300 ?Aand the spectral resolution R=λ/?λranges from 600 to 1000 in this wavelength range (F W H M ≈5?A), all satisfying CHILI requirements.关键词
积分视场光纤光谱仪/波长定标/光谱分辨率Key words
IFU/Wavelength Calibration/Spectral Resolution分类
天文与地球科学引用本文复制引用
李欢,郝蕾..中国丽江积分视场光纤光谱仪分辨能力实验室测试结果[J].天文学进展,2017,35(2):255-266,12.基金项目
国家自然科学基金(11473305) （11473305）
