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$\times$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 ($M 10^14 M_ødot$), 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.
Description
CHIME/FRB Catalog 1 results: statistical cross-correlations with large-scale structure
%0 Generic
%1 rafieiravandi2021chimefrb
%A Rafiei-Ravandi, Masoud
%A Smith, Kendrick M.
%A Li, Dongzi
%A Masui, Kiyoshi W.
%A Josephy, Alexander
%A Dobbs, Matt
%A Lang, Dustin
%A Bhardwaj, Mohit
%A Patel, Chitrang
%A Bandura, Kevin
%A Berger, Sabrina
%A Boyle, P. J.
%A Brar, Charanjot
%A Cassanelli, Tomas
%A Chawla, Pragya
%A Dong, Fengqiu Adam
%A Fonseca, Emmanuel
%A Gaensler, B. M.
%A Giri, Utkarsh
%A Good, Deborah C.
%A Halpern, Mark
%A Kaczmarek, Jane
%A Kaspi, Victoria M.
%A Leung, Calvin
%A Lin, Hsiu-Hsien
%A Mena-Parra, Juan
%A Meyers, B. W.
%A Michilli, D.
%A Münchmeyer, Moritz
%A Ng, Cherry
%A Petroff, Emily
%A Pleunis, Ziggy
%A Rahman, Mubdi
%A Sanghavi, Pranav
%A Scholz, Paul
%A Shin, Kaitlyn
%A Stairs, Ingrid H.
%A Tendulkar, Shriharsh P.
%A Vanderlinde, Keith
%A Zwaniga, Andrew
%D 2021
%K tifr
%T CHIME/FRB Catalog 1 results: statistical cross-correlations with
large-scale structure
%U http://arxiv.org/abs/2106.04354
%X 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$\times$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 ($M 10^14 M_ødot$), 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.
@misc{rafieiravandi2021chimefrb,
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 $\sim 10^{-4}$, accounting for
look-elsewhere factors) cross-correlation between CHIME FRBs and galaxies in
the redshift range $0.3 \lesssim z \lesssim 0.5$, in three photometric galaxy
surveys: WISE$\times$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 ($\sim 400$ pc cm$^{-3}$), and show that this can plausibly
arise from gas in large halos ($M \sim 10^{14} M_\odot$), for FRBs near the
halo center ($r \lesssim 100$ kpc). These results will improve in future
CHIME/FRB catalogs, with more FRBs and better angular resolution.},
added-at = {2021-06-09T10:39:46.000+0200},
author = {Rafiei-Ravandi, Masoud and Smith, Kendrick M. and Li, Dongzi and Masui, Kiyoshi W. and Josephy, Alexander and Dobbs, Matt and Lang, Dustin and Bhardwaj, Mohit and Patel, Chitrang and Bandura, Kevin and Berger, Sabrina and Boyle, P. J. and Brar, Charanjot and Cassanelli, Tomas and Chawla, Pragya and Dong, Fengqiu Adam and Fonseca, Emmanuel and Gaensler, B. M. and Giri, Utkarsh and Good, Deborah C. and Halpern, Mark and Kaczmarek, Jane and Kaspi, Victoria M. and Leung, Calvin and Lin, Hsiu-Hsien and Mena-Parra, Juan and Meyers, B. W. and Michilli, D. and Münchmeyer, Moritz and Ng, Cherry and Petroff, Emily and Pleunis, Ziggy and Rahman, Mubdi and Sanghavi, Pranav and Scholz, Paul and Shin, Kaitlyn and Stairs, Ingrid H. and Tendulkar, Shriharsh P. and Vanderlinde, Keith and Zwaniga, Andrew},
biburl = {https://www.bibsonomy.org/bibtex/2734bb96e2c3c5a951c289a4d8d229fa1/citekhatri},
description = {CHIME/FRB Catalog 1 results: statistical cross-correlations with large-scale structure},
interhash = {7260a2dcb98b5af87722b6ec729ff236},
intrahash = {734bb96e2c3c5a951c289a4d8d229fa1},
keywords = {tifr},
note = {cite arxiv:2106.04354Comment: 26 pages, 16 figures},
timestamp = {2021-06-09T10:39:46.000+0200},
title = {CHIME/FRB Catalog 1 results: statistical cross-correlations with
large-scale structure},
url = {http://arxiv.org/abs/2106.04354},
year = 2021
}