Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

The FRB-searching Pipeline of the Tianlai Cylinder Pathfinder Array

Journal Article · · Res.Astron.Astrophys.
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [1];  [1];  [4];  [4];  [1];  [5];  [6];  [7];  [8];  [9]
  1. NAOC, Beijing; Beijing, GUCAS
  2. Hua-Zhong Normal U.
  3. Beijing, GUCAS
  4. Beijing, Inst. Theor. Phys.; Unlisted, CN
  5. IJCLab, Orsay
  6. Academia Sinica, Taiwan; Canadian Inst. Theor. Astrophys.
  7. Wisconsin U., Madison
  8. Fermilab
  9. NAOC, Beijing; Beijing, GUCAS; Shenyang, Northeast U. Tech.; Peking U., CHEP
+ Show Author Affiliations

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 Cylinder Pathfinder Array. The array, consisting of three parallel cylindrical reflectors and equipped with 96 dual-polarization feeds, is a radio interferometer array designed for conducting drift scans of the northern celestial semi-sphere. The FRB digital backend enables the formation of 96 digital beams, effectively covering an area of approximately 40 square degrees with the 3 dB beam. Our pipeline demonstrates the capability to conduct an automatic search of FRBs, detecting at quasi-real-time and classifying FRB candidates automatically. The current FRB searching pipeline has an overall recall rate of 88%. During the commissioning phase, we successfully detected signals emitted by four well-known pulsars: PSR B0329+54, B2021+51, B0823+26, and B2020+28. We report the first discovery of an FRB by our array, designated as FRB 20220414A. We also investigate the optimal arrangement for the digitally formed beams to achieve maximum detection rate by numerical simulation.

Research Organization:
Canadian Inst. Theor. Astrophys.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Beijing, GUCAS; Hua-Zhong Normal U.; Academia Sinica, Taiwan; NAOC, Beijing; Beijing, Inst. Theor. Phys.; IJCLab, Orsay; Unlisted, CN; Shenyang, Northeast U. Tech.; Wisconsin U., Madison; Peking U., CHEP
Sponsoring Organization:
US Department of Energy
Grant/Contract Number:
AC02-07CH11359; 89243024CSC000002
OSTI ID:
2432392
Report Number(s):
FERMILAB-PUB-24-0388-V; oai:inspirehep.net:2801736; arXiv:2406.15740
Journal Information:
Res.Astron.Astrophys., Journal Name: Res.Astron.Astrophys. Journal Issue: 8 Vol. 24
Country of Publication:
United States
Language:
English

Similar Records

A Fast Radio Burst Backend for the Tianlai Dish Pathfinder Array
Journal Article · Tue Nov 15 23:00:00 EST 2022 · Research in Astronomy and Astrophysics · OSTI ID:1908197
The Tianlai Cylinder Pathfinder Array: System Functions and Basic Performance Analysis
Journal Article · Thu Apr 30 00:00:00 EDT 2020 · Science China: Physics, Mechanics & Astronomy · OSTI ID:1632187
Progress in the Construction and Testing of the Tianlai Radio Interferometers
Conference · Mon Jul 09 00:00:00 EDT 2018 · Proc.SPIE Int.Soc.Opt.Eng. · OSTI ID:1463632

Related Subjects