activity
20152026
most citedThe low density and magnetization of a massive galaxy halo exposed by a fast radio burst

293 citations · 2.3k across the 36 of their papers we have counts for

collaborators

35 papers

astro-ph.HE2026

A spatially resolved view of Fast Radio Burst host metallicities with Integral-field Spectroscopy

Sunil Simha, Hsiao-Wen Chen, Wen-fai Fong +15

Magnetar sources are the leading theory for Fast Radio Burst (FRB) progenitors. If magnetars are indeed the dominant sources, we may thus expect any metallicity preference for magn…

astro-ph.HE2026

Two new highly scattered fast radio bursts: evidence for scatter broadening by the circumsource medium

Joscha N. Jahns-Schindler, Keith W. Bannister, Adam T. Deller +17

We found two highly scattered Fast Radio Bursts (FRBs) during commissioning of the Commensal Realtime ASKAP Fast Transient COherent (CRACO) backend. FRB 240210D and FRB 240312D hav…

astro-ph.IM2026

VASTER: The ASKAP real-time fast-imaging pipeline -- overview and discovery of two long period transients

Yuanming Wang, Dougal Dobie, Tara Murphy +22

Recent developments in widefield radio telescopes have enabled searches of a new region of parameter space in the time domain: timescales of seconds to minutes, that have been over…

astro-ph.HE2026★ 1 cited

A fast radio burst cyclone in technicolour: evidence of plasma lensing

Pavan A. Uttarkar, Ryan M. Shannon, Kelly Gourdji +9

Fast radio bursts (FRBs) are bright, energetic, radio pulses of extragalactic origin. A dichotomy has emerged in the population: some produce repeat bursts, while the majority do n…

astro-ph.GA2025★ 1 cited

Mapping the Spatial Distribution of Fast Radio Bursts within their Host Galaxies

Alexa C. Gordon, Wen-fai Fong, Adam T. Deller +23

We present deep optical and near-infrared observations of the host galaxies of 34 fast radio bursts (FRBs) detected by the Commensal Real-time ASKAP Fast Transient (CRAFT) survey o…

astro-ph.HE2025★ 2 cited

The discovery of a 41s radio pulsar PSR J0311+1402 with ASKAP

Yuanming Wang, Pavan Uttarkar, Ryan Shannon +16

The emerging population of long-period radio transients (LPTs) show both similarities and differences with normal pulsars. A key difference is that their radio emission is too brig…

astro-ph.HE2025

A depolarisation census of ASKAP fast radio bursts

Pavan A. Uttarkar, Ryan M. Shannon, Kelly Gourdji +9

Fast radio bursts (FRBs) are luminous, dispersed pulses of extra-galactic origin. The physics of the emission mechanism, the progenitor environment, and their origin are unclear. S…

gr-qc2025★ 6 cited

Choosing suitable noise models for nanohertz gravitational-wave astrophysics

Valentina Di Marco, Andrew Zic, Ryan M. Shannon +2

Accurately estimating the parameters of the nanohertz gravitational-wave background is essential for understanding its origin. The background is typically modeled with a power-law…

astro-ph.HE2024★ 20 cited

Detection of X-ray Emission from a Bright Long-Period Radio Transient

Ziteng Wang, Nanda Rea, Tong Bao +46

Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission on timescales thousands of times longer than radio pulsars. Several models had bee…

astro-ph.HE2024

Unusual intra-burst variations of polarization states in FRB 20210912A and FRB 20230708A : Effects of plasma birefringence?

Apurba Bera, Clancy W. James, Mark M. McKinnon +6

Fast radio bursts (FRBs) are highly energetic events of short-duration intense radio emission, the origin of which remains elusive till date. Polarization of the FRB signals carry…

astro-ph.HE2024★ 9 cited

The impact of the FREDDA dedispersion algorithm on estimations with FRBs

Jordan Hoffmann, Clancy W. James, Hao Qiu +12

Fast radio bursts (FRBs) are transient radio signals of extragalactic origins that are subjected to propagation effects such as dispersion and scattering. It follows then that thes…

astro-ph.CO2024

Modelling DSA, FAST and CRAFT surveys in a z-DM analysis and constraining a minimum FRB energy

Jordan Hoffmann, Clancy W. James, Marcin Glowacki +5

Fast radio burst (FRB) science primarily revolves around two facets: the origin of these bursts and their use in cosmological studies. This work follows from previous redshift-disp…

astro-ph.HE2024★ 8 cited

The Curious Case of Twin Fast Radio Bursts: Evidence for Neutron Star Origin?

Apurba Bera, Clancy W. James, Adam T. Deller +9

Fast radio bursts (FRBs) are brilliant short-duration flashes of radio emission originating at cosmological distances. The vast diversity in the properties of currently known FRBs,…

astro-ph.HE2024

VLBA Astrometry of the Fastest-spinning Magnetar Swift J1818.0-1607: A Large Trigonometric Distance & A Small Transverse Velocity

Hao Ding, Marcus E. Lower, Adam T. Deller +3

In addition to being the most magnetic objects in the known universe, magnetars are the only objects observed to generate fast-radio-burst-like emissions. The formation mechanism o…

astro-ph.SR2024

A two-minute burst of highly polarised radio emission originating from low Galactic latitude

Dougal Dobie, Andrew Zic, Lucy S. Oswald +19

Several sources of repeating coherent bursts of radio emission with periods of many minutes have now been reported in the literature. These "ultra-long period" (ULP) sources have n…

astro-ph.GA2023★ 2 cited

A Fast Radio Burst in a Compact Galaxy Group at ~1

Alexa C. Gordon, Wen-fai Fong, Sunil Simha +14

FRB 20220610A is a high-redshift Fast Radio Burst (FRB) that has not been observed to repeat. Here, we present rest-frame UV and optical observati…

astro-ph.IM2023★ 2 cited

CELEBI: The CRAFT Effortless Localisation and Enhanced Burst Inspection Pipeline

D. R. Scott, H. Cho, C. K. Day +8

Fast radio bursts (FRBs) are being detected with increasing regularity. However, their spontaneous and often once-off nature makes high-precision burst position and frequency-time…

astro-ph.HE2021★ 66 cited

Circularly polarized radio emission from the repeating fast radio burst source FRB 20201124A

Pravir Kumar, Ryan M. Shannon, Marcus E. Lower +4

The mechanism that produces fast radio burst (FRB) emission is poorly understood. Targeted monitoring of repeating FRB sources provides the opportunity to fully characterize the em…

astro-ph.HE2021★ 16 cited

Constraining bright optical counterparts of Fast Radio Bursts

C. Nuñez, N. Tejos, G. Pignata +14

Fast Radio Bursts (FRBs) are extremely energetic pulses of millisecond duration and unknown origin. In order to understand the phenomenon that emits these pulses, targeted and unta…

astro-ph.HE2020★ 36 cited

The dynamic magnetosphere of Swift J1818.01607

Marcus E. Lower, Simon Johnston, Ryan M. Shannon +2

Radio-loud magnetars display a wide variety of radio-pulse phenomenology seldom seen among the population of rotation-powered pulsars. Spectropolarimetry of the radio pulses from t…

astro-ph.GA2020★ 239 cited

Host Galaxy Properties and Offset Distributions of Fast Radio Bursts: Implications for their Progenitors

Kasper E. Heintz, J. Xavier Prochaska, Sunil Simha +15

We present observations and detailed characterizations of five new host galaxies of fast radio bursts (FRBs) discovered with the Australian Square Kilometre Array Pathfinder (ASKAP…

astro-ph.HE2020★ 92 cited

Extremely band-limited repetition from a fast radio burst source

Pravir Kumar, Ryan M. Shannon, Chris Flynn +11

The fast radio burst (FRB) population is observationally divided into sources that have been observed to repeat and those that have not. There is tentative evidence that the bursts…

astro-ph.HE2020★ 57 cited

Limits on precursor and afterglow radio emission from a fast radio burst in a star-forming galaxy

Shivani Bhandari, Keith W. Bannister, Emil Lenc +17

We present a new fast radio burst (FRB) at 920 MHz discovered during commensal observations conducted with the Australian Square Kilometre Array Pathfinder (ASKAP) as part of the C…

astro-ph.HE2020★ 117 cited

Spectropolarimetric analysis of FRB 181112 at microsecond resolution: Implications for Fast Radio Burst emission mechanism

Hyerin Cho, Jean-Pierre Macquart, Ryan M. Shannon +14

We have developed a new coherent dedispersion mode to study the emission of Fast Radio Bursts that trigger the voltage capture capability of the Australian SKA Pathfinder (ASKAP) i…