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

doi:10.1007/s11433-020-1594-8

CORC > 自动化研究所 > 中国科学院自动化研究所 > 国家专用集成电路设计工程技术研究中心 > 实感计算

	The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis
	Li, JiXia 2,3; Zuo, ShiFan 2,4,5; Wu, FengQuan 2; Wang, YouGang 2; Zhang, JuYong 6; Sun, ShiJie 2,3; Xu, YiDong 2; Yu, ZiJie 2,3; Ansari, Reza 7,8; Li, YiChao 9
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2020-09-10
卷号	63 期号:12 页码:27
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
通讯作者	Chen, XueLei(xuelei@cosmology.bao.ac.cn)
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.
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
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.ia.ac.cn/handle/173211/41964]
专题	国家专用集成电路设计工程技术研究中心_实感计算
通讯作者	Chen, XueLei
作者单位	1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830001, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China 6.Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Peoples R China 7.CNRS IN2P3, IJC Lab, F-91405 Orsay, France 8.Univ Paris Saclay, F-91405 Orsay, France 9.Univ Western Cape, Dept Phys & Astron, ZA-7535 Bellville, South Africa 10.Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 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):27.
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),27.
MLA	Li, JiXia,et al."The Tianlai Cylinder Pathfinder array: System functions and basic performance analysis".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 63.12(2020):27.