Statistical Association between the Candidate Repeating FRB 20200320A and a Galaxy Group

Masoud Rafiei-Ravandi; Kendrick M. Smith; D. Michilli; Ziggy Pleunis; Mohit Bhardwaj; Matt Dobbs; Gwendolyn M. Eadie; Emmanuel Fonseca; B. M. Gaensler; Jane Kaczmarek; Victoria M. Kaspi; Calvin Leung; Dongzi Li; Kiyoshi W. Masui; Ayush Pandhi; Aaron B. Pearlman; Emily Petroff; Mubdi Rahman; Paul Scholz; David C. Stenning

doi:10.3847/1538-4357/ad0c59

The Astrophysical Journal (Jan 2024)

Statistical Association between the Candidate Repeating FRB 20200320A and a Galaxy Group

Masoud Rafiei-Ravandi,
Kendrick M. Smith,
D. Michilli,
Ziggy Pleunis,
Mohit Bhardwaj,
Matt Dobbs,
Gwendolyn M. Eadie,
Emmanuel Fonseca,
B. M. Gaensler,
Jane Kaczmarek,
Victoria M. Kaspi,
Calvin Leung,
Dongzi Li,
Kiyoshi W. Masui,
Ayush Pandhi,
Aaron B. Pearlman,
Emily Petroff,
Mubdi Rahman,
Paul Scholz,
David C. Stenning

Affiliations

Masoud Rafiei-Ravandi: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada ; [email protected]; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
Kendrick M. Smith: ORCiD; Perimeter Institute for Theoretical Physics , 31 Caroline Street N, Waterloo, ON N25 2YL, Canada
D. Michilli: ORCiD; MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
Ziggy Pleunis: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
Mohit Bhardwaj: ORCiD; Department of Physics, Carnegie Mellon University , 5000 Forbes Avenue, Pittsburgh PA 15213, USA
Matt Dobbs: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada ; [email protected]; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
Gwendolyn M. Eadie: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; Department of Statistical Sciences, University of Toronto , 700 University Avenue, Toronto, ON M5G 1Z5, Canada
Emmanuel Fonseca: ORCiD; Department of Physics and Astronomy, West Virginia University , P.O. Box 6315, Morgantown, WV 26506, USA; Center for Gravitational Waves and Cosmology, West Virginia University , Chestnut Ridge Research Building, Morgantown, WV 26505, USA
B. M. Gaensler: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; Division of Physical and Biological Sciences, University of California Santa Cruz , Santa Cruz, CA 95064, USA
Jane Kaczmarek: ORCiD; CSIRO Space & Astronomy , Parkes Observatory, P.O. Box 276, Parkes NSW 2870, Australia; Department of Computer Science, Math, Physics, & Statistics, University of British Columbia , Kelowna, BC V1V 1V7, Canada
Victoria M. Kaspi: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada ; [email protected]; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
Calvin Leung: ORCiD; Department of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA
Dongzi Li: ORCiD; Cahill Center for Astronomy and Astrophysics , MC 249-17 California Institute of Technology, Pasadena CA 91125, USA
Kiyoshi W. Masui: ORCiD; MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
Ayush Pandhi: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
Aaron B. Pearlman: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada ; [email protected]; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
Emily Petroff: ORCiD; Perimeter Institute for Theoretical Physics , 31 Caroline Street N, Waterloo, ON N25 2YL, Canada
Mubdi Rahman: ORCiD; Sidrat Research , 124 Merton Street, Toronto, ON M4S 2Z2, Canada
Paul Scholz: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; Department of Physics and Astronomy, York University , 4700 Keele Street, Toronto, ON MJ3 1P3, Canada
David C. Stenning: ORCiD; Department of Statistics & Actuarial Science, Simon Fraser University , 8888 University Dr, Burnaby, BC V5A 1S6, Canada

DOI: https://doi.org/10.3847/1538-4357/ad0c59
Journal volume & issue: Vol. 961, no. 2
p. 177

Abstract

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We present results from angular cross correlations between select samples of CHIME/FRB repeaters and galaxies in three photometric galaxy surveys, which have shown correlations with the first CHIME/FRB catalog containing repeating and nonrepeating sources: Wide-field Infrared Survey Explorer (WISE) × SCOS, DESI-BGS, and DESI-LRG. We find a statistically significant correlation ( p -value 395 pc cm ^−3 and WISE × SCOS galaxies with redshift z > 0.275. We demonstrate that the correlation arises surprisingly because of a statistical association between FRB 20200320A (extragalactic DM ≈ 550 pc cm ^−3 ) and a galaxy group in the same dark matter halo at redshift z ≈ 0.32. We estimate that the host halo, along with an intervening halo at redshift z ≈ 0.12, accounts for at least ∼30% of the extragalactic DM. Our results strongly motivate incorporating galaxy group and cluster catalogs into direct host association pipelines for FRBs with $\lesssim 1^{\prime} $ localization precision, effectively utilizing the two-point information to constrain FRB properties such as their redshift and DM distributions. In addition, we find marginal evidence for a negative correlation at 99.4% confidence limit between a sample of repeating FRBs with baseband data (median extragalactic DM = 354 pc cm ^−3 ) and DESI-LRG galaxies with redshift 0.3 ≤ z < 0.45, suggesting that the repeaters might be more prone than apparent nonrepeaters to propagation effects in FRB–galaxy correlations due to intervening free electrons over angular scales ∼0.°5.

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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