articleThe Astrophysical Journal Supplement SeriesMar 1, 2026GOLD OA

The Second CHIME/FRB Catalog of Fast Radio Bursts

TAThomas AbbottBCBridget C. AndersenSAShion AndrewKBKevin BanduraMBMohit Bhardwaj
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Abstract

Abstract We present a catalog of 4539 fast radio bursts (FRBs) observed with the Canadian Hydrogen Intensity Mapping Experiment telescope between 2018 July 25 and 2023 September 15. These bursts originate from 3641 unique sources, including 981 bursts from 83 known repeating sources. For each FRB, the catalog provides an O ( 1 0 ′ ) estimate of sky location along with corresponding measurements of cumulative exposure time and survey sensitivity over the observing period. It includes a total-intensity dynamic spectrum between 400 and 800 MHz at 0.983 ms resolution. From this spectrum, we constrain a model of the burst morphology and measure key parameters such as arrival time, intrinsic temporal width,…

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Topics & keywords

Topics
Keywords
  • Fast radio burst
  • Sky
  • Sensitivity (control systems)
  • Measure (data warehouse)
  • Key (lock)
  • Radio telescope
  • Event (particle physics)
  • Consistency (knowledge bases)
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