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Fast radio bursts (FRB) are enigmatic powerful single radio pulses with durations of several milliseconds and high brightness temperatures suggesting coherent emission mechanism. For the time being a number of extragalactic FRBs have been…

High Energy Astrophysical Phenomena · Physics 2021-08-23 D. Kostunin , H. Ashkar , F. Schüssler , G. Rowell

The discovery of periodicity in the arrival times of the fast radio bursts (FRBs) poses a challenge to the oft-studied magnetar scenarios. However, models that postulate that FRBs result from magnetized shocks or magnetic reconnection in a…

High Energy Astrophysical Phenomena · Physics 2021-08-16 Navin Sridhar , Brian D. Metzger , Paz Beniamini , Ben Margalit , Mathieu Renzo , Lorenzo Sironi , Konstantinos Kovlakas

Some of the mysterious temporal properties of Fast Radio Bursts (FRB) may be explained if they are produced by dynamically triaxial magnetars. If the bursts are narrowly collimated along open field lines, then observed repeating FRB are…

High Energy Astrophysical Phenomena · Physics 2026-05-19 J. I. Katz

Very recently Spitler et al. (2016) and Scholz et al. (2016) reported their detections of sixteen additional bright bursts from the direction of the fast radio burst (FRB) 121102. This repeating FRB is inconsistent with all the catastrophic…

High Energy Astrophysical Phenomena · Physics 2016-09-28 Z. G. Dai , J. S. Wang , X. F. Wu , Y. F. Huang

Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown origin. Two possible mechanisms that could generate extremely coherent emission from FRBs invoke neutron star magnetospheres or relativistic shocks far from the…

Fast Radio Bursts (FRBs) are intense, millisecond-duration broadband radio transients, the emission mechanisms of which are not understood. Masui et al. recently presented Green Bank Telescope observations of FRB 110523, which displayed…

High Energy Astrophysical Phenomena · Physics 2016-01-25 Vikram Ravi , Paul D. Lasky

Fast Radio Bursts (FRBs) are energetic millisecond radio bursts at cosmological distances, whose underlying engine is not identified. Among a sub-population that emit repeated radio bursts, a handful were associated with a persistent radio…

High Energy Astrophysical Phenomena · Physics 2025-01-27 Xian Zhang , Wenfei Yu , Zhen Yan , Yi Xing , Bing Zhang

Fast radio bursts (FRBs) are highly energetic radio pulses from cosmological origins. Despite an abundance of detections, their nature remains elusive. At least a subset of FRBs is expected to repeat, as the daily FRB rate surpasses that of…

High Energy Astrophysical Phenomena · Physics 2020-03-04 Julian B. Muñoz , Vikram Ravi , Abraham Loeb

Fast radio bursts (FRBs) are millisecond-timescale bursts of coherent radio emission that are luminous enough to be detectable at cosmological distances. In this review I describe the discovery of FRBs, subsequent advances in our…

High Energy Astrophysical Phenomena · Physics 2022-11-14 Matthew Bailes

Context: Fast radio bursts (FRBs) are bright millisecond radio events of unknown extragalactic origin. Magnetars are among the main contenders. Some sources, the repeaters, produce multiple events but so far generally without the…

High Energy Astrophysical Phenomena · Physics 2025-10-08 Guillaume Voisin , Théo Francez

Fast radio bursts (FRBs) are extragalactic radio flashes of unknown physical origin. Their high luminosities and short durations require extreme energy densities, like those found in the vicinity of neutron stars and black holes. Studying…

Fast radio bursts (FRBs) are bright, short-duration radio transients with very high brightness temperatures implying highly coherent emission. We suggest that the FRBs are caused by the self-focusing of an electron beam interacting with an…

High Energy Astrophysical Phenomena · Physics 2020-03-18 Mustafa Doğan , Kazım Yavuz Ekşi

Asteroids orbiting into the highly magnetized and highly relativistic wind of a pulsar offer a favourable configuration for repeating fast radio bursts (FRB). The body in direct contact with the wind develops a trail formed of a stationary…

High Energy Astrophysical Phenomena · Physics 2021-01-04 Fabrice Mottez , Philippe Zarka , Guillaume Voisin

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

Fast radio bursts (FRBs), typically highly polarized, usually have a nearly constant polarization position angle (PA) during each burst. Some bursts show significant PA variations, and one of them was claimed to have a PA variation pattern…

Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances ($\sim 1$ Gpc). Their short duration, $\sim 1$ ms, and large luminosity evidence coherent emission. I…

High Energy Astrophysical Phenomena · Physics 2021-03-02 Yuri Lyubarsky

Fast radio bursts (FRBs) are mysterious transient phenomena. The study of repeating FRBs may provide useful information about their nature due to their redetectability. The two most famous repeating sources are FRBs 121102 and 180916, with…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Abdusattar Kurban , Yong-Feng Huang , Jin-Jun Geng , Bing Li , Fan Xu , Xu Wang , Xia Zhou , Ali Esamdin , Na Wang

The repeating fast radio burst (FRB) localized to a globular cluster in M81 challenges our understanding of FRB models. In this Letter, we explore dynamical formation scenarios for objects in old globular clusters that may plausibly power…

High Energy Astrophysical Phenomena · Physics 2021-08-18 Kyle Kremer , Anthony L. Piro , Dongzi Li

The physical origin of fast radio bursts (FRBs) is still unknown. Multiwavelength and polarization observations of an FRB source would be helpful to diagnose its progenitor and environment. So far only the first repeating source FRB 121102…

High Energy Astrophysical Phenomena · Physics 2020-05-27 Yuan-Pei Yang , Qiao-Chu Li , Bing Zhang

We show that the 216.8$\pm$0.1 ms periodicity reported for the fast radio burst (FRB) 20191221A is very constraining for burst models. The high accuracy of burst periodicity (better than one part in 10$^3$), and the 2\% duty cycle (ratio of…

High Energy Astrophysical Phenomena · Physics 2023-01-18 Paz Beniamini , Pawan Kumar