papers

Publications (40)

astro-ph.HE2024

Magnetospheric origin of a fast radio burst constrained using scintillation

Kenzie Nimmo, Ziggy Pleunis, Paz Beniamini +26

Fast radio bursts (FRBs) are micro-to-millisecond duration radio transients that originate mostly from extragalactic distances. The emission mechanism responsible for these high lu…

astro-ph.HE2021

A sudden period of high activity from repeating Fast Radio Burst 20201124A

Adam E. Lanman, Bridget C. Andersen, Pragya Chawla +30

The repeating FRB 20201124A was first discovered by CHIME/FRB in November of 2020, after which it was seen to repeat a few times over several months. It entered a period of high ac…

astro-ph.HE2024

A fast radio burst localized at detection to an edge-on galaxy using very-long-baseline interferometry

Tomas Cassanelli, Calvin Leung, Pranav Sanghavi +48

Fast radio bursts (FRBs) are millisecond-duration, luminous radio transients of extragalactic origin. These events have been used to trace the baryonic structure of the Universe us…

astro-ph.HE2023

A CHIME/FRB study of burst rate and morphological evolution of the periodically repeating FRB 20180916B

Ketan R. Sand, Daniela Breitman, Daniele Michilli +31

FRB 20180916B is a repeating Fast Radio Burst (FRB) with a 16.3-day periodicity in its activity. In this study, we present morphological properties of 60 FRB 20180916B bursts detec…

astro-ph.HE2019

Observations of Fast Radio Bursts at Frequencies down to 400 Megahertz

FRB Collaboration, Mandana Amiri, Kevin Bandura +52

Fast radio bursts (FRBs) are highly dispersed millisecond-duration radio flashes likely arriving from far outside the Milky Way galaxy. This phenomenon was discovered at radio freq…

astro-ph.HE2023

Inferring the Energy and Distance Distributions of Fast Radio Bursts using the First CHIME/FRB Catalog

Kaitlyn Shin, Kiyoshi W. Masui, Mohit Bhardwaj +18

Fast radio bursts (FRBs) are brief, energetic, extragalactic flashes of radio emission whose progenitors are largely unknown. Although studying the FRB population is essential for…

astro-ph.CO2021

CHIME/FRB Catalog 1 results: statistical cross-correlations with large-scale structure

Masoud Rafiei-Ravandi, Kendrick M. Smith, Dongzi Li +38

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 CHIM…

astro-ph.HE2024

Constraints on the Intergalactic and Local Dispersion Measure of Fast Radio Bursts with the CHIME/FRB far side-lobe events

Hsiu-Hsien Lin, Paul Scholz, Cherry Ng +40

We study the 10 fast radio bursts (FRBs) detected in the far side-lobe region of the CHIME telescope from 2018 August 28 to 2021 August 31. We find that the far side-lobe events ha…

astro-ph.HE2022

Sub-arcminute localization of 13 repeating fast radio bursts detected by CHIME/FRB

Daniele Michilli, Mohit Bhardwaj, Charanjot Brar +23

We report on improved sky localizations of thirteen repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages fro…

astro-ph.HE2024

A pulsar-like swing in the polarisation position angle of a nearby fast radio burst

Ryan Mckinven, Mohit Bhardwaj, Tarraneh Eftekhari +41

Fast radio bursts (FRBs) last for milliseconds and arrive at Earth from cosmological distances. While their origin(s) and emission mechanism(s) are presently unknown, their signals…

astro-ph.HE2024

A search for persistent radio sources toward repeating fast radio bursts discovered by CHIME/FRB

Adaeze L. Ibik, Maria R. Drout, Bryan M. Gaensler +25

The identification of persistent radio sources (PRSs) coincident with two repeating fast radio bursts (FRBs) supports FRB theories requiring a compact central engine. However, deep…

astro-ph.CO2019

Characterizing fast radio bursts through statistical cross-correlations

Masoud Rafiei-Ravandi, Kendrick M. Smith, Kiyoshi W. Masui

Understanding the origin of fast radio bursts (FRB's) is a central unsolved problem in astrophysics that is severely hampered by their poorly determined distance scale. Determining…

astro-ph.HE2026

The Second CHIME/FRB Catalog of Fast Radio Bursts

FRB Collaboration, Thomas Abbott, Bridget C. Andersen +71

We present a catalog of 4539 fast radio bursts (FRBs) observed with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope between 25 July 2018 and 15 September 2023.…

astro-ph.HE2021

Fast Radio Burst Morphology in the First CHIME/FRB Catalog

Ziggy Pleunis, Deborah C. Good, Victoria M. Kaspi +29

We present a synthesis of fast radio burst (FRB) morphology (the change in flux as a function of time and frequency) as detected in the 400-800 MHz octave by the FRB project on the…

astro-ph.HE2024

Updating the first CHIME/FRB catalog of fast radio bursts with baseband data

FRB Collaboration, Mandana Amiri, Bridget C. Andersen +57

In 2021, a catalog of 536 fast radio bursts (FRBs) detected with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope was released by the CHIME/FRB Collaborat…

astro-ph.IM2024

CHIME/FRB Outriggers: KKO Station System and Commissioning Results

Adam E. Lanman, Shion Andrew, Mattias Lazda +43

Localizing fast radio bursts (FRBs) to their host galaxies is an essential step to better understanding their origins and using them as cosmic probes. The CHIME/FRB Outrigger progr…

astro-ph.HE2023

CHIME Discovery of a Binary Pulsar with a Massive Non-Degenerate Companion

Bridget C. Andersen, Emmanuel Fonseca, J. W. McKee +25

Of the more than radio pulsars currently known, only are in binary systems, and only five of these consist of young pulsars with massive non-degenerate compan…

astro-ph.HE2024

Polarization properties of 128 non-repeating fast radio bursts from the first CHIME/FRB baseband catalog

Ayush Pandhi, Ziggy Pleunis, Ryan Mckinven +23

We present a 400-800 MHz polarimetric analysis of 128 non-repeating fast radio bursts (FRBs) from the first CHIME/FRB baseband catalog, increasing the total number of FRB sources w…

astro-ph.HE2023

Morphologies of Bright Complex Fast Radio Bursts with CHIME/FRB Voltage Data

Jakob T. Faber, Daniele Michilli, Ryan Mckinven +23

We present the discovery of twelve thus far non-repeating fast radio burst (FRB) sources, detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope. These so…

astro-ph.HE2023

Comprehensive Bayesian analysis of FRB-like bursts from SGR 1935+2154 observed by CHIME/FRB

Utkarsh Giri, Bridget C. Andersen, Pragya Chawla +24

The bright millisecond-duration radio burst from the Galactic magnetar SGR 1935+2154 in 2020 April was a landmark event, demonstrating that at least some fast radio burst (FRB) sou…

astro-ph.HE2022

Sub-second periodicity in a fast radio burst

FRB Collaboration, Bridget C. Andersen, Kevin Bandura +59

Fast radio bursts (FRBs) are millisecond-duration flashes of radio waves that are visible at distances of billions of light-years. The nature of their progenitors and their emissio…

astro-ph.HE2025

FRB 20250316A: A Brilliant and Nearby One-Off Fast Radio Burst Localized to 13 parsec Precision

FRB Collaboration, Thomas C. Abbott, Daniel Amouyal +83

Precise localizations of a small number of repeating fast radio bursts (FRBs) using very long baseline interferometry (VLBI) have enabled multiwavelength follow-up observations rev…

astro-ph.IM2022

An Injection System for the CHIME/FRB Experiment

Marcus Merryfield, S. P. Tendulkar, Kaitlyn Shin +19

Dedicated surveys searching for Fast Radio Bursts (FRBs) are subject to selection effects which bias the observed population of events. Software injection systems are one method of…

astro-ph.HE2025

A Catalog of Local Universe Fast Radio Bursts from CHIME/FRB and the KKO Outrigger

FRB Collaboration, Mandana Amiri, Daniel Amouyal +62

We present the first catalog of fast radio burst (FRB) host galaxies from CHIME/FRB Outriggers, selected uniformly in the radio and the optical by localizing 81 new bursts to 2'' x…

astro-ph.HE2023

The First CHIME/FRB Fast Radio Burst Catalog

FRB Collaboration, Mandana Amiri, Bridget C. Andersen +73

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 fro…

astro-ph.HE2025

CHIME/FRB Outriggers: Design Overview

FRB Collaboration, Mandana Amiri, Bridget C. Andersen +66

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has emerged as the world's premier facility for studying fast radio bursts (FRBs) through its fast transient search backe…

astro-ph.HE2023

Proposed host galaxies of repeating fast radio burst sources detected by CHIME/FRB

Adaeze L. Ibik, Maria R. Drout, B. M. Gaensler +18

We present a search for host galaxy associations for the third set of repeating fast radio burst (FRB) sources discovered by the CHIME/FRB Collaboration. Using the 1 arcmin…

astro-ph.GA2024

Statistical association between the candidate repeating FRB 20200320A and a galaxy group

Masoud Rafiei-Ravandi, Kendrick M. Smith, D. Michilli +17

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 wit…

astro-ph.IM2023

Mitigating radio frequency interference in CHIME/FRB real-time intensity data

Masoud Rafiei-Ravandi, Kendrick M. Smith

Extragalactic fast radio bursts (FRBs) are a new class of astrophysical transients with unknown origins that have become a main focus of radio observatories worldwide. FRBs are hig…

astro-ph.HE2024

Do All Fast Radio Bursts Repeat? Constraints from CHIME/FRB Far Side-Lobe FRBs

Hsiu-Hsien Lin, Paul Scholz, Cherry Ng +46

We report ten fast radio bursts (FRBs) detected in the far side-lobe region (i.e., off-meridian) of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) from 2…

astro-ph.HE2022

Constraining Primordial Black Holes using Fast Radio Burst Gravitational-Lens Interferometry with CHIME/FRB

Calvin Leung, Zarif Kader, Kiyoshi W. Masui +30

Fast radio bursts (FRBs) represent an exciting frontier in the study of gravitational lensing, due to their brightness, extragalactic nature, and the compact, coherent characterist…

astro-ph.HE2025

The CHIME/FRB Discovery of the Extremely Active Fast Radio Burst Source FRB 20240114A

Kaitlyn Shin, Alice Curtin, Maxwell Fine +28

Among the thousands of observed fast radio bursts (FRBs), a few sources exhibit exceptionally high burst activity observable by many telescopes across a broad range of radio freque…

astro-ph.HE2024

Morphology of 137 Fast Radio Bursts down to Microseconds Timescales from The First CHIME/FRB Baseband Catalog

Ketan R. Sand, Alice P. Curtin, Daniele Michilli +21

We present a spectro-temporal analysis of 137 fast radio bursts (FRBs) from the first CHIME/FRB baseband catalog, including 125 one-off bursts and 12 repeat bursts, down to microse…

astro-ph.HE2023

Host Galaxies for Four Nearby CHIME/FRB Sources and the Local Universe FRB Host Galaxy Population

Mohit Bhardwaj, Daniele Michilli, Aida Yu. Kirichenko +24

We present the host galaxies of four apparently non-repeating fast radio bursts (FRBs), FRBs 20181223C, 20190418A, 20191220A, and 20190425A, reported in the first Canadian Hydrogen…

astro-ph.HE2023

CHIME/FRB Discovery of 25 Repeating Fast Radio Burst Sources

FRB Collaboration, Bridget C. Andersen, Kevin Bandura +56

We present the discovery of 25 new repeating fast radio burst (FRB) sources found among CHIME/FRB events detected between 2019 September 30 and 2021 May 1. The sources were found u…

astro-ph.HE2022

A High-Time Resolution Search for Compact Objects using Fast Radio Burst Gravitational Lens Interferometry with CHIME/FRB

Zarif Kader, Calvin Leung, Matt Dobbs +31

The gravitational field of compact objects, such as primordial black holes, can create multiple images of background sources. For transients such as fast radio bursts (FRBs), these…

astro-ph.HE2024

Investigating the sightline of a highly scattered FRB through a filamentary structure in the local Universe

Kaitlyn Shin, Calvin Leung, Sunil Simha +31

Fast radio bursts (FRBs) are unique probes of extragalactic ionized baryonic structure as each signal, through its burst properties, holds information about the ionized matter it e…

astro-ph.HE2024

Contemporaneous X-ray Observations of 30 Bright Radio Bursts from the Prolific Fast Radio Burst Source FRB 20220912A

Amanda M. Cook, Paul Scholz, Aaron B. Pearlman +22

We present an extensive contemporaneous X-ray and radio campaign performed on the repeating fast radio burst (FRB) source FRB 20220912A for eight weeks immediately following the so…

astro-ph.HE2023

Limits on Fast Radio Burst-like Counterparts to Gamma-ray Bursts using CHIME/FRB

Alice P. Curtin, Shriharsh P. Tendulkar, Alexander Josephy +21

Fast Radio Bursts (FRBs) are a class of highly energetic, mostly extragalactic radio transients lasting for a few milliseconds. While over 600 FRBs have been published so far, thei…

astro-ph.HE2025

Morphology of 35 Repeating Fast Radio Burst Sources at Microsecond Time Scales with CHIME/FRB

Alice P. Curtin, Ketan R. Sand, Ziggy Pleunis +27

The Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) project has discovered the most repeating fast radio burst (FRB) sources of any telescope. However,…