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YFPOL: A Linear Polarimeter of Lijiang 2.4 m Telescope
Xin YX(辛玉新)1,2,3,4; Bai JM(白金明)1,3,4; Qu ZQ(屈中权)1,2; Xu Z(徐稚)1; Mao JR(毛基荣)1,3,4; Ye K(业凯)1,3,4; Lun BL(伦宝利)1,3,4; Ding X(丁旭)1,2,3,4; Liu HT(刘洪涛)1,3,4; Zhong Y(钟悦)1; Fan YF(范玉峰)1,3,4; Yu XG(余晓光)1,2,3,4; Xu L(许良)1,3,4; Dong XB(董小波)1,3,4; Wang JG(王建国)1,3,4; Xiong DR(熊定荣)1,3,4
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2022-09-01
Volume22Issue:9
DOI10.1088/1674-4527/ac77e1
Contribution Rank第1完成单位
Indexed BySCI
Keywordpolarization - instrumentation polarimeters - techniques image processing -techniques polarimetric
Abstract

Polarimetry plays an important role in investigating physical properties for celestial objects. We present a polarimeter named YFPOL for the Cassegrain focus of the Lijiang 2.4 m Telescope (LJT) of Yunnan Observatories, Chinese Academy of Sciences. YFPOL is a traditional single-beam polarimeter with a rotating polarizer. As the focal-reducer instrument Yunnan Faint Object Spectrograph and Camera (YFOSC) is always positioned on the Cassegrain focal plane of LJT, we develop two sets of ultra-thin (thickness <12 mm) polarizer rotation control systems with wireless charging and control functions, which are suitable for mounting on the two front-wheels of YFOSC. One set is used as the polarimetric calibration unit, and the other is for the polarimetric modulation unit. Both of the polarizers have an ultra-high contrast ratio of 1,000,000:1 in the optical band. We investigate the instrumental polarization characteristics (IPCs) in the full field of view that is transferred from YFOSC. Furthermore, we identify that the IPCs change when the Cassegrain axis rotates. The spurious polarization from the IPCs can be effectively minimized by flat-fielding using the unpolarized domeflat, when the Cassegrain rotation angle is the same or nearest to that of the polarization observation. We develop a quasi-automatic pipeline for YFPOL and its effectiveness has been verified by tests of the polarimetric observation with blazar S5 0716+714. The calibration is performed by observing the zero-polarized and highly-polarized standard stars. We successfully reach high precision polarization in the 7 '

Funding ProjectNational Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[11991051] ; National Natural Science Foundation of China (NSFC)[11573067] ; National Natural Science Foundation of China (NSFC)[11673062] ; National Natural Science Foundation of China (NSFC)[11527804] ; National Natural Science Foundation of China (NSFC)[U1931206] ; National Natural Science Foundation of China (NSFC)[11873091] ; CAS Light of West China Program ; Yunnan Province Basic Research Plan[2019FA001] ; China Manned Space Project[CMS-CSST-2021-A06] ; Yunnan Province, Chinese Academy of Sciences ; NSFC
Funding OrganizationNational Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[11991051, 11573067, 11673062, 11527804, U1931206, 11873091] ; CAS Light of West China Program ; Yunnan Province Basic Research Plan[2019FA001] ; China Manned Space Project[CMS-CSST-2021-A06] ; Yunnan Province, Chinese Academy of Sciences ; NSFC
Language英语
Subject Area天文学 ; 天文学其他学科 ; 仪器仪表技术
MOST Discipline Catalogue理学 ; 理学::天文学 ; 工学 ; 工学::光学工程 ; 工学::仪器科学与技术
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS IDWOS:000838317500001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordPOLARIZATION ; SYSTEM ; SPECTROPOLARIMETRY ; PHOTOMETRY ; ROBOPOL ; OPTICS ; FOCUS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ynao.ac.cn/handle/114a53/25527
Collection南方基地
光纤阵列太阳光学望远镜研究组
中国科学院天体结构与演化重点实验室
星系类星体研究组
Corresponding AuthorXin YX(辛玉新)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; xyx@ynao.ac.cn, baijinming@ynao.ac.cn;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xin YX,Bai JM,Qu ZQ,et al. YFPOL: A Linear Polarimeter of Lijiang 2.4 m Telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(9).
APA Xin YX.,Bai JM.,Qu ZQ.,Xu Z.,Mao JR.,...&Xiong DR.(2022).YFPOL: A Linear Polarimeter of Lijiang 2.4 m Telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(9).
MLA Xin YX,et al."YFPOL: A Linear Polarimeter of Lijiang 2.4 m Telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.9(2022).
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