YFPOL: A Linear Polarimeter of Lijiang 2.4 m Telescope
文献类型:期刊论文
作者 | Xin YX(辛玉新)1,2,3,4; Bai JM(白金明)1,2,4; Qu ZQ(屈中权)3,4; Xu Z(徐稚)4; Mao JR(毛基荣)1,2,4; Ye K(业凯)1,2,4; Lun BL(伦宝利)1,2,4; Ding X(丁旭)1,2,3,4; Liu HT(刘洪涛)1,2,4; Zhong Y(钟悦)4 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
出版日期 | 2022-09-01 |
卷号 | 22期号:9 |
ISSN号 | 1674-4527 |
关键词 | polarization - instrumentation polarimeters - techniques image processing -techniques polarimetric |
DOI | 10.1088/1674-4527/ac77e1 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | 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 ' |
学科主题 | 天文学 ; 天文学其他学科 ; 仪器仪表技术 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
WOS关键词 | POLARIZATION ; SYSTEM ; SPECTROPOLARIMETRY ; PHOTOMETRY ; ROBOPOL ; OPTICS ; FOCUS |
资助项目 | National 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 |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:000838317500001 |
资助机构 | National 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 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25527] |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_光纤阵列太阳光学望远镜研究组 云南天文台_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 |
通讯作者 | Xin YX(辛玉新) |
作者单位 | 1.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 3.University of Chinese Academy of Sciences, Beijing 100049, China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; xyx@ynao.ac.cn, baijinming@ynao.ac.cn; |
推荐引用方式 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). |
入库方式: OAI收割
来源:云南天文台
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