The optical delay measurement for Lijiang Exoplanet Tracker

doi:10.1117/12.2548400

YNAO OpenIR > 南方基地

	The optical delay measurement for Lijiang Exoplanet Tracker
	Wang XL(王晓丽)1,2 ; Ji KF(季凯帆)1,2 ; Jiang, Peng 3; Ge, Jian 4; Xu L(许良)1,2 ; Yu XG(余晓光)1,2 ; Chang L(常亮)1,2 ; Wang CJ(王传军)1,2 ; Lun BL(伦宝利)1,2 ; Wang JG(王建国)1,2 ; Zhou, Jilin 5; Zhou, Hongyan 3; Wang, Tinggui 6
会议录名称	Proceedings of SPIE - 11th International Conference on Information Optics and Photonics (CIOP)
	2019-12-20
卷号	11209
DOI	10.1117/12.2548400
会议录编者/会议主办者	Wang, H
产权排序	第1完成单位
收录类别	EI ; CPCI
会议名称	Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
会议日期	2019-08-06
会议地点	Xi'an, PEOPLES R CHINA
会议赞助商	SPIE; Chinese Laser Press; NW Polytechn Univ
关键词	Exoplanet interferometers radial velocity optical delay
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.
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
项目资助者	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
语种	英语
学科领域	天文学 ; 天体物理学 ; 实测天体物理学 ; 天体测量学
文章类型	Proceedings Paper
出版者	SPIE-INT SOC OPTICAL ENGINEERING
出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号	978-1-5106-3174-8
ISSN号	0277-786X
URL	查看原文
WOS记录号	WOS:000526177700091
WOS研究方向	Optics
WOS类目	Optics
关键词[WOS]	INTERFEROMETRY
EI入藏号	20200508093023
EI主题词	Interferometry
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena - 707.2 Electric Lamps - 741.3 Optical Devices and Systems - 941.3 Optical Instruments - 941.4 Optical Variables Measurements
引用统计
文献类型	会议论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/21609
专题	南方基地中国科学院天体结构与演化重点实验室
通讯作者	Wang XL(王晓丽)
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunmin 650216, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China 3.Polar Research Institute of China, Shanghai 200136,China 4.Astronomy Department, University of Florida, 211 Bryant Space Science Center, P.O. Box 112055, Gainesville, FL 32611, USA 5.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China 6.Astronomy Department, University of Science and Technology of China, Hefei 230026, China
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
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]//Wang, H. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2019.

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