The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis

doi:10.1007/s11433-020-1594-8

	The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis
	Li, JiXia 14,15; Zuo, ShiFan 3,13,15; Wu, FengQuan 15; Wang, YouGang 15; Zhang, JuYong 16; Sun, ShiJie 14,15; Xu, YiDong 15; Yu, ZiJie 14,15; Ansari, Reza 1,19; Li, YiChao 2
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2020-09-10
卷号	63 期号:12 页码:129862
关键词	interferometer radio astronomy neutral hydrogen cosmology dark energy 95 55 Br 95 55 Jz 95 75 Kk 95 85 Bh
ISSN号	1674-7348
DOI	10.1007/s11433-020-1594-8
产权排序	11
英文摘要	The Tianlai Cylinder Pathfinder is a radio interferometer array designed to test techniques for 21 cm intensity mapping in the post-reionization Universe, with the ultimate aim of mapping the large scale structure and measuring cosmological parameters such as the dark energy equation of state. Each of its three parallel cylinder reflectors is oriented in the north-south direction, and the array has a large field of view. As the Earth rotates, the northern sky is observed by drift scanning. The array is located in Hongliuxia, a radio-quiet site in Xinjiang, and saw its first light in September 2016. In this first data analysis paper for the Tianlai cylinder array, we discuss the sub-system qualification tests, and present basic system performance obtained from preliminary analysis of the commissioning observations during 2016-2018. We show typical interferometric visibility data, from which we derive the actual beam profile in the east-west direction and the frequency band-pass response. We describe also the calibration process to determine the complex gains for the array elements, either using bright astronomical point sources, or an artificial on site calibrator source, and discuss the instrument response stability, crucial for transit interferometry. Based on this analysis, we find a system temperature of about 90 K, and we also estimate the sensitivity of the array.
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资助项目	Astronomical Technology Center of National Astronomical Observatories of China (NAOC) ; Ministry of Science and Technology (MOST)[2012AA121701] ; MOST[2016YFE0100300] ; MOST[2018YFE0120800] ; National Natural Science Foundation of China (NSFC)[11633004] ; National Natural Science Foundation of China (NSFC)[11473044] ; National Natural Science Foundation of China (NSFC)[11653003] ; Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SLH017] ; NSFC-CAS Joint Fund of Astronomy[U1631118] ; National Key RD Program[2017YFA0402603] ; CAS Interdisciplinary Innovation Team[JCTD-2019-05] ; NSFC[U1501501] ; US National Science Foundation (NSF) Award[AST-1616554] ; US Department of Energy[DE-AC02-07CH11359] ; Centre National de la Recherche Scientifique (CNRS) via IN2P3 ; Centre National de la Recherche Scientifique (CNRS) via INSU ; Observatoire de Paris ; Irfu/CEA ; Australia-China Consortium for Astrophysical Research (ACAMAR) visiting fellowship
WOS研究方向	Physics
语种	英语
CSCD记录号	CSCD:6880190
出版者	SCIENCE PRESS
WOS记录号	WOS:000570129200001
资助机构	Astronomical Technology Center of National Astronomical Observatories of China (NAOC) ; Ministry of Science and Technology (MOST) ; MOST ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; NSFC-CAS Joint Fund of Astronomy ; National Key RD Program ; CAS Interdisciplinary Innovation Team ; NSFC ; US National Science Foundation (NSF) Award ; US Department of Energy ; Centre National de la Recherche Scientifique (CNRS) via IN2P3 ; Centre National de la Recherche Scientifique (CNRS) via INSU ; Observatoire de Paris ; Irfu/CEA ; Australia-China Consortium for Astrophysical Research (ACAMAR) visiting fellowship
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3664]
专题	新疆天文台_射电天文研究室
通讯作者	Chen, XueLei
作者单位	1.Univ Paris Saclay, F-91405 Orsay, France 2.Univ Western Cape, Dept Phys & Astron, ZA-7535 Bellville, South Africa 3.Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China 4.Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA 5.Univ Wisconsin, Dept Phys, Madison, WI 53703 USA 6.China Elect Technol Grp Corp, 54th Res Inst, Shijiazhuang 050051, Hebei, Peoples R China 7.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830001, Peoples R China 9.Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada 10.Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
推荐引用方式 GB/T 7714	Li, JiXia,Zuo, ShiFan,Wu, FengQuan,et al. The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2020,63(12):129862.
APA	Li, JiXia.,Zuo, ShiFan.,Wu, FengQuan.,Wang, YouGang.,Zhang, JuYong.,...&Chen, XueLei.(2020).The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,63(12),129862.
MLA	Li, JiXia,et al."The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 63.12(2020):129862.