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Published November 20, 2021 | Published + Accepted Version
Journal Article Open

CHIME/FRB Catalog 1 Results: Statistical Cross-correlations with Large-scale Structure

Rafiei-Ravandi, Masoud ORCID icon
Smith, Kendrick M. ORCID icon
Li, Dongzi ORCID icon
Masui, Kiyoshi W. ORCID icon
Josephy, Alexander ORCID icon
Dobbs, Matt ORCID icon
Lang, Dustin ORCID icon
Bhardwaj, Mohit ORCID icon
Patel, Chitrang ORCID icon
Bandura, Kevin ORCID icon
Berger, Sabrina ORCID icon
Boyle, P. J. ORCID icon
Brar, Charanjot ORCID icon
Breitman, Daniela ORCID icon
Cassanelli, Tomas ORCID icon
Chawla, Pragya ORCID icon
Adam Dong, Fengqiu ORCID icon
Fonseca, Emmanuel ORCID icon
Gaensler, B. M. ORCID icon
Giri, Utkarsh ORCID icon
Good, Deborah C. ORCID icon
Halpern, Mark ORCID icon
Kaczmarek, Jane ORCID icon
Kaspi, Victoria M. ORCID icon
Leung, Calvin ORCID icon
Lin, Hsiu-Hsien ORCID icon
Mena-Parra, Juan ORCID icon
Meyers, B. W. ORCID icon
Michilli, D. ORCID icon
Münchmeyer, Moritz ORCID icon
Ng, Cherry ORCID icon
Petroff, Emily ORCID icon
Pleunis, Ziggy ORCID icon
Rahman, Mubdi ORCID icon
Sanghavi, Pranav ORCID icon
Scholz, Paul ORCID icon
Shin, Kaitlyn ORCID icon
Stairs, Ingrid H. ORCID icon
Tendulkar, Shriharsh P. ORCID icon
Vanderlinde, Keith ORCID icon
Zwaniga, Andrew ORCID icon

Abstract

The CHIME/FRB Project has recently released its first catalog of fast radio bursts (FRBs), containing 492 unique sources. We present results from angular cross-correlations of CHIME/FRB sources with galaxy catalogs. We find a statistically significant (p-value ∼ 10⁻⁴, accounting for look-elsewhere factors) cross-correlation between CHIME FRBs and galaxies in the redshift range 0.3 ≲ z ≲ 0.5, in three photometric galaxy surveys: WISE × SCOS, DESI-BGS, and DESI-LRG. The level of cross-correlation is consistent with an order-one fraction of the CHIME FRBs being in the same dark matter halos as survey galaxies in this redshift range. We find statistical evidence for a population of FRBs with large host dispersion measure (∼400 pc cm⁻³) and show that this can plausibly arise from gas in large halos (M ∼ 10¹⁴ M_⊙), for FRBs near the halo center (r ≲ 100 kpc). These results will improve in future CHIME/FRB catalogs, with more FRBs and better angular resolution.

Additional Information

© 2021. The American Astronomical Society. Received 2021 June 10; revised 2021 August 9; accepted 2021 August 14; published 2021 November 18. We thank the Dominion Radio Astrophysical Observatory, operated by the National Research Council Canada, for gracious hospitality and expertise. CHIME is funded by a grant from the Canada Foundation for Innovation (CFI) 2012 Leading Edge Fund (Project 31170) and by contributions from the provinces of British Columbia, Québec, and Ontario. The CHIME/FRB Project is funded by a grant from the CFI 2015 Innovation Fund (Project 33213), by contributions from the provinces of British Columbia and Québec, and by the Dunlap Institute for Astronomy and Astrophysics at the University of Toronto. The Dunlap Institute is funded through an endowment established by the David Dunlap family and the University of Toronto. Additional support was provided by the Canadian Institute for Advanced Research (CIFAR), McGill University and the McGill Space Institute via the Trottier Family Foundation, and the University of British Columbia. Research at Perimeter Institute is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Research & Innovation. K.M.S. was supported by an NSERC Discovery Grant and a CIFAR fellowship. K.W.M. is supported by an NSF grant (2008031). M.D. is supported by a Killam Fellowship, NSERC Discovery Grant, CIFAR, and by the FRQNT Centre de Recherche en Astrophysique du Québec (CRAQ). M.B. is supported by an FRQNT Doctoral Research Award. K. B. is supported by an NSF grant (2006548). P.C. is supported by an FRQNT Doctoral Research Award. B.M.G. is supported by an NSERC Discovery grant (RGPIN-2015-05948) and by the Canada Research Chairs (CRC) program. D.C.G is supported by the John I. Watters Research Fellowship. V.M.K. holds the Lorne Trottier Chair in Astrophysics & Cosmology, a Distinguished James McGill Professorship, and receives support from an NSERC Discovery grant (RGPIN 228738-13) and Gerhard Herzberg Award, from an R. Howard Webster Foundation Fellowship from CIFAR, and from the FRQNT CRAQ. C.L. was supported by the U.S. Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program. J.M.-P is a Kavli Fellow. D.M. is a Banting Fellow. E.P. acknowledges funding from an NWO Veni Fellowship. P.S. is a Dunlap Fellow and an NSERC Postdoctoral Fellow. K.S. is supported by the NSF Graduate Research Fellowship Program. FRB research at UBC is supported by an NSERC Discovery Grant and by CIFAR. This research was enabled in part by support provided by WestGrid (www.westgrid.ca and Compute Canada (www.computecanada.ca. The Photometric Redshifts for the Legacy Surveys (PRLS) catalog used in this paper was produced thanks to funding from the U.S. Department of Energy Office of Science, Office of High Energy Physics via grant DE-SC0007914.

Attached Files

Published - Rafiei-Ravandi_2021_ApJ_922_42.pdf

Accepted Version - 2106.04354.pdf

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Additional details

Identifiers Related works Funding Dates
Created:
September 15, 2023
Modified:
October 23, 2023