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Currently, FRB 121102 is the only fast radio burst source that was observed to give out bursts repeatedly. It shows a high repeating rate, with more than one hundred bursts being spotted, but with no obvious periodicity in the activities.…

High Energy Astrophysical Phenomena · Physics 2019-01-25 Bing Li , Long-Biao Li , Zhi-Bin Zhang , Jin-Jun Geng , Li-Ming Song , Yong-Feng Huang , Yuan-Pei Yang

Fast radio bursts (FRB) are millisecond-duration radio pulses with apparent extragalactic origins. All but two of the FRBs have been discovered using the Parkes dish which employs multiple beams formed by an array of feed horns on its focal…

High Energy Astrophysical Phenomena · Physics 2016-10-19 H. K. Vedantham , V. Ravi , G. Hallinan , R. Shannon

Fast radio bursts (FRBs) are bright, millisecond-duration radio pulses whose origins are unknown. To date, only one (FRB 121102) out of several dozen has been seen to repeat, though the extent to which it is exceptional remains unclear. We…

High Energy Astrophysical Phenomena · Physics 2018-07-11 Liam Connor , Emily Petroff

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

Fast Radio Bursts (FRBs) are highly energetic radio transients with millisecond duration, whose physical origin is still unknown. Many models consider magnetars as possible FRB sources, supported by the observational association of FRBs…

High Energy Astrophysical Phenomena · Physics 2024-09-25 Barbara Patricelli , Maria Grazia Bernardini , Matteo Ferro

Fast radio bursts (FRBs) are millisecond-timescale radio transients, the origins of which are predominantly extragalactic and likely involve highly magnetized compact objects. FRBs undergo multipath propagation, or scattering, from electron…

High Energy Astrophysical Phenomena · Physics 2022-12-14 S. K. Ocker , J. M. Cordes , S. Chatterjee , D. Li , C. H. Niu , J. W. McKee , C. J. Law , R. Anna-Thomas

Since its initial discovery, the Fast radio burst (FRB) FRB 121102 has been found to be repeating with millisecond-duration pulses. Very recently, 15 new bursts were detected by the Green Bank Telescope (GBT) during its continous monitoring…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Weiyang Wang , Rui Luo , Han Yue , Kejia Lee , Xuelei Chen , Renxin Xu

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

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 untargeted searches have been performed for multi-wavelength…

Fast radio bursts (FRBs) are intense, short-duration radio transients of mysterious origin. They have been detected across a wide range of frequencies from 110 MHz to 8 GHz. Their spectral properties, remaining poorly understood, are…

High Energy Astrophysical Phenomena · Physics 2026-05-13 Rui-Nan Li , Hao-Tian Lan , Zhen-Yin Zhao , Qin Wu , Fa-Yin Wang , Zi-Gao Dai

The field of Fast Radio Burst (FRB) science is currently thriving and growing rapidly. The lines of active investigation include theoretical and observational aspects of these enigmatic millisecond radio signals. These pursuits are for the…

High Energy Astrophysical Phenomena · Physics 2018-11-05 E. F. Keane

Fast Radios Bursts (FRBs) show large dispersion measures (DMs), suggesting an extragalactic location. We analyze the DMs of the 11 known FRBs in detail and identify steps as integer multiples of half the lowest DM found, 187.5cm$^{-3}$ pc,…

High Energy Astrophysical Phenomena · Physics 2015-03-31 Michael Hippke , Wilfried F. Domainko , John G. Learned

Fast radio bursts are extragalactic, sub-millisecond radio impulses of unknown origin [1,2]. Their dispersion measures, which quantify the observed frequency-dependent dispersive delays in terms of free-electron column densities,…

High Energy Astrophysical Phenomena · Physics 2019-07-16 Vikram Ravi

Repeating and apparently non-repeating fast radio bursts (FRB) differ by orders of magnitude in duty factors, energy and rotation measure. Extensive monitoring of apparently non-repeating FRB has failed to find any repetitions. This…

High Energy Astrophysical Phenomena · Physics 2020-12-30 J. I. Katz

Fast radio bursts (FRBs) are cosmological radio transients with unclear generation mechanism. Known characteristics such as their luminosity, duration, spectrum and repetition rate, etc. suggest that FRBs are powerful coherent radio signals…

High Energy Astrophysical Phenomena · Physics 2022-05-04 Yu Zhang , Hui-Chun Wu

Fast radio bursts (FRBs) are short-duration radio pulses of cosmological origin. Among the most common sources predicted to explain this phenomenon are bright pulses from a class of extremely highly magnetized neutron stars known as…

High Energy Astrophysical Phenomena · Physics 2024-01-31 S. Paine , T. Hawkins , D. R. Lorimer , J. Stanley , J. Kania , F. Crawford , N. Fairfield

The origin of fast radio bursts (FRBs) is still unknown. Multi-wavelength observations during or shortly after the FRB phase would be essential to identify the counterpart of an FRB and to constrain its progenitor and environment. In this…

High Energy Astrophysical Phenomena · Physics 2019-06-26 Yuan-Pei Yang , Bing Zhang , Jian-Yan Wei

I present an empirical study of the properties of fast radio bursts (FRBs): Gigahertz-frequency, dispersed pulses of extragalactic origin. I focus my investigation on the sample of seventeen FRBs detected at the Parkes radio telescope with…

High Energy Astrophysical Phenomena · Physics 2018-07-04 Vikram Ravi

Fast radio bursts (FRBs) are millisecond bursts of radio radiation whose progenitors so far remain mysterious. Nevertheless, the timescales and energetics of the events have lead to many theories associating FRBs with young neutron stars.…

High Energy Astrophysical Phenomena · Physics 2016-06-29 Anthony L. Piro

The nature of fast radio bursts (FRBs), which occurs on millisecond time scales in the radio band, has not been well-understood. Among their unknown observational properties are their broadband spectra and persistent and transient…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Shangyu Sun , Wenfei Yu , Yunwei Yu , Dongming Mao , Jie Lin