The optical delay measurement for Lijiang Exoplanet Tracker

doi:10.1117/12.2548400

CORC > 云南天文台 > 中国科学院云南天文台 > 丽江天文观测站（南方基地）

	The optical delay measurement for Lijiang Exoplanet Tracker
	Wang XL(王晓丽)4,5; Ji KF(季凯帆)4,5; Jiang, Peng 1; Ge, Jian 6; Xu L(许良)4,5; Yu XG(余晓光)4,5; Chang L(常亮)4,5; Wang CJ(王传军)4,5; Lun BL(伦宝利)4,5; Wang JG(王建国)4,5
	2019-12-20
会议日期	2019-08-06
会议地点	Xi'an, PEOPLES R CHINA
关键词	Exoplanet interferometers radial velocity optical delay
卷号	11209
DOI	10.1117/12.2548400
英文摘要	Lijiang Exoplanet Tracker (LijET) was designed to detect exoplanets with extremely high precision radial velocity (RV) measurements, and it was mounted on 2.4m telescope at Lijiang Observatory in 2011. The Dispersed FixedDelay Interferometry (DFDI) mode of LiJET is a combination of a thermally compensated monolithic michelson interferometer and a cross-dispersed echelle spectrograph. When the slit width is 1.6 '', the spectral resolution is 18000. With a 4k x 4k CCD, the spectrograph has wavelength coverage of 390nm-690nm. The temperature stability of the instrument is 25 +/- 0.001 degrees C, and the pressure stability of the instrument is 10.9 +/- 0.001psi. LiJET realize high precision RV measurements by measuring the phase shifts of fringes in the slit direction. Differential RV is a function of light speed, phase shift, wavelength and optical delay. Thus, optical delay is necessary to be determined accurately to take differential RV measurements to derive precise RV. We used thorium argon (ThAr) and tungsten lamp to calibration the DFDI spectrum of LiJET, and then to calculate the optical delay at different channels on the CCD detector.
源文献作者	Wang, H
产权排序	第1完成单位
会议录	Proceedings of SPIE - 11th International Conference on Information Optics and Photonics (CIOP)
资助机构	National Natural Science Foundation of China[11603072, 11727806] ; National Natural Science Foundation of China[U1631127] ; Chinese Academy of Science[U1631127] ; Chinese Academy of Sciences ; People's Government of Yunnan Province
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
文献子类	Proceedings Paper
学科主题	天文学 ; 天体物理学 ; 实测天体物理学 ; 天体测量学
语种	英语
URL标识	查看原文
资助项目	National Natural Science Foundation of China[11603072] ; National Natural Science Foundation of China[11727806] ; National Natural Science Foundation of China[U1631127] ; Chinese Academy of Science[U1631127] ; Chinese Academy of Sciences ; People's Government of Yunnan Province
ISSN号	0277-786X
ISBN号	978-1-5106-3174-8
WOS研究方向	Optics
WOS记录号	WOS:000526177700091
WOS关键词	INTERFEROMETRY
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/21609]
专题	云南天文台_丽江天文观测站（南方基地）
通讯作者	Wang XL(王晓丽)
作者单位	1.Polar Research Institute of China, Shanghai 200136,China 2.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China 3.Astronomy Department, University of Science and Technology of China, Hefei 230026, China 4.Yunnan Observatories, Chinese Academy of Sciences, Kunmin 650216, China 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China 6.Astronomy Department, University of Florida, 211 Bryant Space Science Center, P.O. Box 112055, Gainesville, FL 32611, USA
推荐引用方式 GB/T 7714	Wang XL,Ji KF,Jiang, Peng,et al. The optical delay measurement for Lijiang Exoplanet Tracker[C]. 见:. Xi'an, PEOPLES R CHINA. 2019-08-06.