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Related papers: On the magnetospheric origin of Repeating Fast Rad…

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The newly discovered second repeating fast radio burst (FRB) source, FRB 180814.J0422+73, was reported to exhibit a time-frequency downward drifting pattern, which is also seen in the first repeater FRB 121102. We propose a generic…

High Energy Astrophysical Phenomena · Physics 2019-05-15 Weiyang Wang , Bing Zhang , Xuelei Chen , Renxin Xu

The puzzling mechanism of coherent radio emission remains unknown, but fortunately, repeating fast radio bursts (FRBs) provide a precious opportunity, with extremely bright subpulses created in a clear and vacuum-like pulsar magnetosphere.…

High Energy Astrophysical Phenomena · Physics 2023-12-12 Renxin Xu , Weiyang Wang

Coherent curvature radiation as the radiation mechanism for fast radio bursts (FRBs) has been discussed since FRBs were discovered. We study the spectral and polarization properties of repeating FRBs within the framework of coherent…

High Energy Astrophysical Phenomena · Physics 2022-03-14 Wei-Yang Wang , Yuan-Pei Yang , Chen-Hui Niu , Renxin Xu , Bing Zhang

Fast Radio Bursts (FRBs) are cosmological sub-second bursts of coherent radio emission, whose source is still unknown. To date, the galactic magnetar SGR 1935+2154 is the only astrophysical object known to emit radio bursts akin to FRBs,…

High Energy Astrophysical Phenomena · Physics 2024-07-08 Simone Dall'Osso , Riccardo La Placa , Luigi Stella , Pavel Bakala , Andrea Possenti

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 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 millisecond-duration radio pulses with largely unknown origins, with a subset exhibiting repeating behavior. Magnetars highly magnetized neutron stars and a leading progenitor candidate for FRBs also produce…

High Energy Astrophysical Phenomena · Physics 2025-12-12 Ellen C. C. Lin , Shotaro Yamasaki , Tomotsugu Goto , Tetsuya Hashimoto

Recently, a fast radio burst (FRB)-like event is found to be associated with a Galactic magnetar, SGR 1935+2154, accompanied by an X-ray burst. We find this radio burst challenges the typical emission mechanisms involving magnetars, which…

High Energy Astrophysical Phenomena · Physics 2020-08-27 Jie-Shuang Wang

Fast radio bursts (FRBs) at cosmological distances have recently been discovered, whose duration is about milliseconds. We argue that the observed short duration is difficult to explain by giant flares of soft gamma-ray repeaters, though…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Tomonori Totani

Fast radio bursts (FRBs) are extragalactic radio transients of extraordinary luminosity. Studying the diverse temporal and spectral behaviour recently observed in a number of FRBs may help determine the nature of the entire class. For…

It was recently discovered that the time correlations of repeating fast radio bursts (FRBs) are similar to earthquake aftershocks. Motivated by the association between FRBs and magnetars, here we report correlation function analyses in the…

High Energy Astrophysical Phenomena · Physics 2024-04-24 Yuya Tsuzuki , Tomonori Totani , Chin-Ping Hu , Teruaki Enoto

The radiation mechanism of fast radio bursts (FRBs) has been extensively studied but still remains elusive. Coherent radiation is identified as a crucial component in the FRB mechanism, with charged bunches also playing a significant role…

High Energy Astrophysical Phenomena · Physics 2023-08-22 Xiang-han Cui , Zheng-wu Wang , Cheng-min Zhang , Chen-hui Niu , Di Li , Jian-wei Zhang , De-hua Wang

Recent observations of repeating fast radio bursts (FRBs) suggest that some FRBs reside in an environment consistent with that of binary neutron star (BNS) mergers. The bursting rate for repeaters could be very high and the emission site is…

High Energy Astrophysical Phenomena · Physics 2020-02-25 Bing Zhang

The recent detection of a Fast Radio Burst (FRB) from a Galactic magnetar secured the fact that neutron stars (NSs) with super-strong magnetic fields are capable of producing these extremely bright coherent radio bursts. One of the leading…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Shotaro Yamasaki , Kazim Yavuz Eksi , Ersin Gogus

Lyutikov (2002) predicted "radio emission from soft gamma-ray repeaters (SGRs) during their bursting activity". Detection of a Mega-Jansky radio burst in temporal coincidence with high energy bursts from a Galactic magnetar SGR 1935+2154…

High Energy Astrophysical Phenomena · Physics 2020-05-13 Maxim Lyutikov , Sergey Popov

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

Fast radio bursts (FRBs) can present a variety of polarization properties, and some of them have narrow spectra. We study spectral properties from perspectives of intrinsic radiation mechanisms and absorption during the waves propagating in…

High Energy Astrophysical Phenomena · Physics 2024-05-08 Wei-Yang Wang , Yuan-Pei Yang , Hong-Bo Li , Jifeng Liu , Renxin Xu

Fast Radio Bursts (FRBs) are bright radio transients with millisecond durations which typically occur at extragalactic distances. The association of FRB 20200428 with the Galactic magnetar SGR J1935+2154 strongly indicates that they could…

High Energy Astrophysical Phenomena · Physics 2024-12-13 Chen Du , Yong-Feng Huang , Zhi-Bin Zhang , Alexander Rodin , Viktoriya Fedorova , Abdusattar Kurban , Di Li

Fast radio bursts (FRBs) are millisecond duration transients observed in the radio band, with their origin and radiation mechanism remaining unclear to date. Growing evidence indicates that at least some FRBs originate from magnetars and…

High Energy Astrophysical Phenomena · Physics 2024-11-08 Yu-Chen Huang , Zi-Gao Dai
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