54 citations · 213 across the 24 of their papers we have counts for
24 papers
and band sky brightness measurements from polar day to polar night at Dome A, Antarctica
Jinji Li, Bin Ma, Haonan Yang +9
The near-infrared (NIR) sky brightness is a fundamental parameter for evaluating the performance of ground-based infrared observatories. Dome~A on the Antarctic plateau offers exce…
The Operation Control System for the Tianlai Experiment
Jixia Li, Fengquan Wu, Shijie Sun +2
The Tianlai 21cm intensity mapping experiment is located at the Hongliuxia Observing Station, which is a remote site with excellent electromagnetic environment. To facilitate the o…
Measuring Tianlai's primary beam using sky model
Yunbo Geng, Furen Deng, Jixia Li +6
We present the beam pattern measurement of the Tianlai Cylinder Pathfinder Array. As it is a pure drift-scan instrument, we exploit the North-South motion of the Sun to demonstrate…
21 cm Power Spectrum Analysis of North Celestial Pole Observations with the Tianlai Dish Pathfinder Array
Guangzhi He, Shifan Zuo, Jixia Li +11
The Tianlai Dish Pathfinder Array (TDPA) is a radio interferometer designed to test techniques for 21 cm intensity mapping in the post-reionization universe as a means of measuring…
Beamforming in Interferometer Arrays with Cross-couplings
Yingfeng Liu, Shijie Sun, Kaifeng Yu +6
For an interferometric array, an image of the sky can be synthesized from interferometric visibilities, which are the cross-correlations of the received electric voltages of pairs…
Probing the cosmological 21~cm global signal from the Antarctic ice sheet
Shijie Sun, Jiaqin Xu, Minquan Zhou +7
The redshifted 21 cm line, arising from neutral hydrogen, offers a unique probe into the intergalactic medium and the first stars and galaxies formed in the early universe. However…
Measurement of the Primary Beam of the Tianlai Cylindrical Antenna Using an Unmanned Aerial Vehicle
Jixia Li, Nanben Suo, Shenzhe Xu +9
The Tianlai Cylinder Pathfinder Array consists of three adjacent cylindrical reflectors fixed on the ground, each 40 meters long and 15 meters wide, with the cylinder axis oriented…
The Electrical Design of a Membrane Antenna for Lunar-based Low-frequency Radio Telescope
Suonanben, Fengquan Wu, Kai He +15
Detecting primordial fluctuations from the cosmic dark ages requires extremely large low-frequency radio telescope arrays deployed on the far side of the Moon. The antenna of such…
The FRB-searching pipeline of the Tianlai Cylinder Pathfinder Array
Zijie Yu, Furen Deng, Shijie Sun +14
This paper presents the design, calibration, and survey strategy of the Fast Radio Burst (FRB) digital backend and its real-time data processing pipeline employed in the Tianlai Cy…
Calibration Error in 21-centimeter Global Spectrum Experiments
Shijie Sun, Eloy de Lera Acedo, Fengquan Wu +3
The redshifted 21 cm line signal is a powerful probe of the cosmic dawn and the epoch of reionization. The global spectrum can potentially be detected with a single antenna and spe…
Tackling Challenges in 21cm Global Spectrum Experiment: the Impact of Ionosphere and Beam Distortion
Yue Wang, Xin Wang, Shijie Sun +3
The HI 21cm global signal from the Cosmic Dawn and the Epoch of Reionization (EoR) offers critical insights into the evolution of our Universe. Yet, its detection presents signific…
Large-scale Array for Radio Astronomy on the Farside
Xuelei Chen, Feng Gao, Fengquan Wu +20
At the Royal Society meeting in 2023, we have mainly presented our lunar orbit array concept called DSL, and also briefly introduced a concept of a lunar surface array, LARAF. As t…
The Effects of the Local Environment on a Compact Radio Interferometer I: Cross-coupling in the Tianlai Dish Pathfinder Array
Juhun Kwak, John Podczerwinski, Peter Timbie +10
The visibilities measured by radio astronomical interferometers include non-astronomical correlated signals that arise from the local environment of the array. These correlated sig…
A simulation of calibration and map-making errors of the Tianlai cylinder pathfinder array
Kaifeng Yu, Fengquan Wu, Shifan Zuo +4
The Tianlai cylinder array is a pathfinder for developing and testing 21cm intensity mapping techniques. In this paper, we use numerical simulation to assess how its measurement is…
A Fast Transient Backend to Detect FRBs with the Tianlai Dish Pathfinder Array
Zijie Yu, Furen Deng, Shijie Sun +11
The Tianlai Dish Pathfinder array is a radio interferometer array consisting of 16 six meter dish antennas. The original digital backend integration time is at the seconds level, d…
The Tianlai dish array low-z surveys forecasts
Olivier Perdereau, Réza Ansari, Albert Stebbins +23
We present the science case for surveys with the Tianlai dish array interferometer tuned to the frequency range. Starting from a realistic…
The Electromagnetic Characteristics of the Tianlai Cylindrical Pathfinder Array
Shijie Sun, Jixia Li, Fengquan Wu +8
A great challenge for 21 cm intensity mapping experiments is the strong foreground radiation which is orders of magnitude brighter than the 21cm signal. Removal of the foreground t…
AlgoSCR: An algorithm for Solar Contamination Removal from radio interferometric data
Anh Phan, Santanu Das, Albert Stebbins +10
Hydrogen intensity mapping is a new field in astronomy that promises to make three-dimensional maps of the matter distribution of the Universe using the redshifted $21\,\textrm{cm}…
The Tianlai Dish Pathfinder Array: design, operation and performance of a prototype transit radio interferometer
Fengquan Wu, Jixia Li, Shifan Zuo +34
The Tianlai Dish Pathfinder Array is a radio interferometer designed to test techniques for 21~cm intensity mapping in the post-reionization universe as a means for measuring large…
Reflections and Standing Waves on the Tianlai Cylinder Array
Jixia Li, Fengquan Wu, Shijie Sun +8
In 21~cm intensity mapping, the spectral smoothness of the foreground is exploited to separate it from the much weaker 21~cm signal. However, the non-smooth frequency response of t…
The Tianlai Cylinder Pathfinder Array: System Functions and Basic Performance Analysis
Jixia Li, Shifan Zuo, Fengquan Wu +35
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…
Progress in the Construction and Testing of the Tianlai Radio Interferometers
Santanu Das, Christopher J. Anderson, Reza Ansari +44
The Tianlai Pathfinder is designed to demonstrate the feasibility of using a wide field of view radio interferometers to map the density of neutral hydrogen in the Universe after t…
An imaging algorithm for a lunar orbit interferometer array
Qizhi Huang, Shijie Sun, Shifan Zuo +5
Radio astronomical observation below 30 MHz is hampered by the refraction and absorption of the ionosphere, and the radio frequency interference (RFI), so far high angular resoluti…
Simulation and Testing of a Linear Array of Modified Four-Square Feed Antennas for the Tianlai Cylindrical Radio Telescope
Aleksander J. Cianciara, Christopher J. Anderson, Xuelei Chen +16
A wide bandwidth, dual polarized, modified four-square antenna is presented as a feed antenna for radio astronomical measurements. A linear array of these antennas is used as a lin…