The Tianlai Cylinder Pathfinder Array: System Functions and Basic Performance Analysis
Jixia Li, Shifan Zuo, Fengquan Wu, Yougang Wang, Juyong Zhang, Shijie, Sun, Yidong Xu, Zijie Yu, Reza Ansari, Yichao Li, Albert Stebbins, Peter, Timbie, Yanping Cong, Jingchao Geng, Jie Hao, Qizhi Huang, Jianbin Li, Rui, Li, Donghao Liu, Yingfeng Liu, Tao Liu, John P. Marriner

TL;DR
The Tianlai Cylinder Pathfinder is a radio interferometer array designed for 21 cm intensity mapping, with initial system performance analysis demonstrating its potential for cosmological observations.
Contribution
This paper presents the first detailed analysis of the Tianlai Cylinder Pathfinder's system performance, including calibration, beam profiling, and sensitivity estimation.
Findings
System temperature around 90 K
Beam profile characterized in east-west direction
Calibration stability confirmed
Abstract
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…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
