The First CHIME/FRB Fast Radio Burst Catalog
Creators: name: FRB Collaboration
name: Amiri, Mandana
name: Andersen, Bridget C.
name: Bandura, Kevin
name: Berger, Sabrina
name: Bhardwaj, Mohit
name: Boyce, Michelle M.
name: Boyle, P. J.
name: Brar, Charanjot
name: Breitman, Daniela
name: Cassanelli, Tomas
name: Chawla, Pragya
name: Chen, Tianyue
name: Cliche, J. -F.
name: Cook, Amanda
name: Cubranic, Davor
name: Curtin, Alice P.
name: Deng, Meiling
name: Dobbs, Matt
name: Fengqiu
name: Dong
name: Eadie, Gwendolyn
name: Fandino, Mateus
name: Fonseca, Emmanuel
name: Gaensler, B. M.
name: Giri, Utkarsh
name: Good, Deborah C.
name: Halpern, Mark
name: Hill, Alex S.
name: Hinshaw, Gary
name: Josephy, Alexander
name: Kaczmarek, Jane F.
name: Kader, Zarif
name: Kania, Joseph W.
name: Kaspi, Victoria M.
name: Landecker, T. L.
name: Lang, Dustin
name: Leung, Calvin
name: Li, Dongzi
name: Lin, Hsiu-Hsien
name: Masui, Kiyoshi W.
name: Mckinven, Ryan
name: Mena-Parra, Juan
name: Merryfield, Marcus
name: Meyers, Bradley W.
name: Michilli, Daniele
name: Milutinovic, Nikola
name: Mirhosseini, Arash
name: Münchmeyer, Moritz
name: Naidu, Arun
name: Newburgh, Laura
name: Ng, Cherry
name: Patel, Chitrang
name: Pen, Ue-Li
name: Petroff, Emily
name: Pinsonneault-Marotte, Tristan
name: Pleunis, Ziggy
name: Rafiei-Ravandi, Masoud
name: Rahman, Mubdi
name: Ransom, Scott M.
name: Renard, Andre
name: Sanghavi, Pranav
name: Scholz, Paul
name: Shaw, J. Richard
name: Shin, Kaitlyn
name: Siegel, Seth R.
name: Sikora, Andrew E.
name: Singh, Saurabh
name: Smith, Kendrick M.
name: Stairs, Ingrid
name: Tan, Chia Min
name: Tendulkar, S. P.
name: Vanderlinde, Keith
name: Wang, Haochen
name: Wulf, Dallas
name: Zwaniga, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present a catalog of 536 fast radio bursts (FRBs) detected by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) Project between 400 and 800 MHz from 2018 July 25 to 2019 July 1, including 62 bursts from 18 previously reported repeating sources. The catalog represents the first large sample, including bursts from repeaters and non-repeaters, observed in a single survey with uniform selection effects. This facilitates comparative and absolute studies of the FRB population. We show that repeaters and apparent non-repeaters have sky locations and dispersion measures (DMs) that are consistent with being drawn from the same distribution. However, bursts from repeating sources differ from apparent non-repeaters in intrinsic temporal width and spectral bandwidth. Through injection of simulated events into our detection pipeline, we perform an absolute calibration of selection effects to account for systematic biases. We find evidence for a population of FRBs - comprising a large fraction of the overall population - with a scattering time at 600 MHz in excess of 10 ms, of which only a small fraction are observed by CHIME/FRB. We infer a power-law index for the cumulative fluence distribution of $α=-1.40\pm0.11(\textrm{stat.})^{+0.06}_{-0.09}(\textrm{sys.})$, consistent with the $-3/2$ expectation for a non-evolving population in Euclidean space. We find $α$ is steeper for high-DM events and shallower for low-DM events, which is what would be expected when DM is correlated with distance. We infer a sky rate of $[525\pm30(\textrm{stat.})^{+140}_{-130}({\textrm{sys.}})]/\textrm{sky}/\textrm{day}$ above a fluence of 5 Jy ms at 600 MHz, with scattering time at $600$ MHz under 10 ms, and DM above 100 pc cm$^{-3}$.
description: 67 pages, 27 figures, 5 tables. Published in ApJS and updated with changes reflected in an erratum (affecting the sky rate). Extended figures and data at https://www.chime-frb.ca/catalog