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Fast radio bursts (FRBs) represent one of the most exciting astrophysical discoveries of the recent past. The study of their low-frequency emission, which was only effectively picked up about ten years after their discovery, has helped…

High Energy Astrophysical Phenomena · Physics 2022-03-10 Maura Pilia

Fast radio bursts (FRBs) are millisecond-duration, bright radio signals (fluence $\mathrm{0.1 - 100\,Jy\,ms}$) emitted from extragalactic sources of unknown physical origin. The recent CHIME/FRB and STARE2 detection of an extremely bright…

High Energy Astrophysical Phenomena · Physics 2020-11-18 F. Kirsten , M. Snelders , M. Jenkins , K. Nimmo , J. van den Eijnden , J. Hessels , M. Gawronski , J. Yang

Detecting fast radio bursts (FRBs) requires software pipelines to search for dispersed single pulses of emission in radio telescope data. In order to enable an unbiased estimation of the underlying FRB population, it is important to…

Instrumentation and Methods for Astrophysics · Physics 2023-06-28 Hao Qiu , Evan F. Keane , Keith W. Bannister , Clancy W. James , Ryan M. Shannon

We present results from a radio survey for variable and transient sources on 15-min timescales, using the Australian SKA Pathfinder (ASKAP) pilot surveys. The pilot surveys consist of 505 h of observations conducted at around 1 GHz…

Fast radio bursts (FRBs) are fierce radio flashes from the deep sky. Abundant observations have indicated that highly magnetized neutron stars might be involved in these energetic bursts, but the underlying trigger mechanism is still…

FRB 121102, the only repeating fast radio burst (FRB) known to date, was discovered at 1.4 GHz and shortly after the discovery of its repeating nature, detected up to 2.4 GHz. Here we present three bursts detected with the 100-m Effelsberg…

The possibility of Fast Radio Burst (FRB) emission being suppressed at low frequencies, resulting in a cutoff of the average rest-frame spectrum, has been raised as an explanation for the lack of detections at meter wavelengths. We examine…

High Energy Astrophysical Phenomena · Physics 2019-04-03 Vikram Ravi , Abraham Loeb

The discovery of the `Lorimer Burst', a little over a decade ago, ignited renewed interest in searching for short-duration radio transients. This event is now considered to be the first established Fast Radio Burst (FRB), which is a class…

High Energy Astrophysical Phenomena · Physics 2018-04-18 J. W. T. Hessels

We present the discovery and subarcsecond localization of a new Fast Radio Burst with the Karl G. Jansky Very Large Array and realfast search system. The FRB was discovered on 2019 June 14 with a dispersion measure of 959 pc/cm3. This is…

We focus on two repeating fast radio bursts (FRBs) recently detected by the CHIME/FRB experiment in 2018--2019 (Source 1: 180916.J0158+65, and Source 2: 181030.J1054+73). These sources have low excess dispersion measures (DMs) ($ < 100 \rm…

Fast Radio Burst (FRB) 20250316A, detected by CHIME on 2025 March 16 with a fluence of $1.7\pm0.1~\mathrm{Jy\,ms}$ and a dispersion measure of $161.3\pm0.4~\mathrm{pc\,cm^{-3}}$, ranks among the brightest extragalactic FRBs at $\sim 40$…

High Energy Astrophysical Phenomena · Physics 2025-09-04 Tao An , Ailing Wang , Yu-Chen Huang , Jia-Pei Feng , Yuanqi Liu , Zhongli Zhang , Zi-Gao Dai

We report the first detections of the repeating fast radio burst source FRB 121102 above 5.2 GHz. Observations were performed using the 4$-$8 GHz receiver of the Robert C. Byrd Green Bank Telescope with the Breakthrough Listen digital…

Precise localizations of a small number of repeating fast radio bursts (FRBs) using very long baseline interferometry (VLBI) have enabled multiwavelength follow-up observations revealing diverse local environments. However, the 2--3\% of…

High Energy Astrophysical Phenomena · Physics 2025-06-25 FRB Collaboration , Thomas C. Abbott , Daniel Amouyal , Shion E. Andrew , Kevin Bandura , Mohit Bhardwaj , Kalyani Bhopi , Yash Bhusare , Charanjot Brar , Alice Cai , Tomas Cassanelli , Shami Chatterjee , Jean-François Cliche , Amanda M. Cook , Alice P. Curtin , Evan Davies-Velie , Matt Dobbs , Fengqiu Adam Dong , Yuxin Dong , Gwendolyn Eadie , Tarraneh Eftekhari , Wen-fai Fong , Emmanuel Fonseca , B. M. Gaensler , Nina Gusinskaia , Jason W. T. Hessels , Danté M. Hewitt , Jeff Huang , Naman Jain , Ronniy. C. Joseph , Lordrick Kahinga , Victoria M. Kaspi , Afrasiyab , Khan , Bikash Kharel , Adam E. Lanman , Magnus L'Argent , Mattias Lazda , Calvin Leung , Robert Main , Lluis Mas-Ribas , Kiyoshi W. Masui , Kyle McGregor , Ryan Mckinven , Juan Mena-Parra , Daniele Michilli , Nicole Mulyk , Mason Ng , Kenzie Nimmo , Ayush Pandhi , Swarali Shivraj Patil , Aaron B. Pearlman , Ue-Li Pen , Ziggy Pleunis , J. Xavier Prochaska , Masoud Rafiei-Ravandi , Scott M. Ransom , Gurman Sachdeva , Mawson W. Sammons , Ketan R. Sand , Paul Scholz , Vishwangi Shah , Kaitlyn Shin , Seth R. Siegel , Sunil Simha , Kendrick Smith , Ingrid Stairs , David C. Stenning , Haochen Wang , Thomas Boles , Ismaël Cognard , Tammo Jan Dijkema , Alexei V. Filippenko , Marcin P. Gawroński , Wolfgang Herrmann , Charles D. Kilpatrick , Franz Kirsten , Shawn Knabel , Omar S. Ould-Boukattine , Hadrien Paugnat , Weronika Puchalska , William Sheu , Aswin Suresh , Aaron Tohuvavohu , Tommaso Treu , WeiKang Zheng

We report the properties of more than 800 bursts detected from the repeating fast radio burst (FRB) source FRB 20201124A with the Five-hundred-meter Aperture Spherical radio telescope (FAST) during an extremely active episode on UTC…

We report the discovery of the repeating fast radio burst source FRB 20240209A using the CHIME/FRB telescope. We have detected 22 bursts from this repeater between February and July 2024, six of which were also recorded at the Outrigger…

We examine the spectra of 23 fast radio bursts detected in a fly's-eye survey with the Australian SKA Pathfinder, including those of three bursts not previously reported. The mean spectral index of $\alpha = -1.6_{-0.2}^{+0.3}$ ($F_\nu…

High Energy Astrophysical Phenomena · Physics 2019-02-27 J. -P. Macquart , R. M. Shannon , K. W. Bannister , C. W. James , R. D. Ekers , J. D. Bunton

The discovery of a persistent radio source coincident with the first repeating fast radio burst, FRB 121102, and offset from the center of its dwarf host galaxy has been used as evidence for a link with young millisecond magnetars born in…

High Energy Astrophysical Phenomena · Physics 2020-06-10 T. Eftekhari , E. Berger , B. Margalit , B. D. Metzger , P. K. G. Williams

We present a survey for transient and variable sources, on timescales from 28 seconds to $\sim$1 year, using the Murchison Widefield Array (MWA) at 182 MHz. Down to a detection threshold of 0.285 Jy, no transient candidates were identified,…

The recent increase in well-localised fast radio bursts (FRBs) has facilitated in-depth studies of global FRB host properties, the source circumburst medium, and the potential impacts of these environments on the burst properties. The…

Instrumentation and Methods for Astrophysics · Physics 2021-09-29 Cherie K. Day , Adam T. Deller , Clancy W. James , Emil Lenc , Shivani Bhandari , R. M. Shannon , Keith W. Bannister