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Recent observations of the repeating fast radio burst FRB 20201124A by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) revealed a second-scale periodic modulation ($\sim$1.7\,s) in burst activity during two distinct…

Fast radio bursts (FRBs) are extragalactic astrophysical transients whose brightness requires emitters that are highly energetic, yet compact enough to produce the short, millisecond-duration bursts. FRBs have thus far been detected between…

Fast radio bursts (FRBs) are extragalactic transients with typical durations of milliseconds. FRBs have been shown, however, to fluctuate on a wide range of timescales: some show sub-microsecond sub-bursts while others last up to a few…

High Energy Astrophysical Phenomena · Physics 2023-11-08 M. P. Snelders , K. Nimmo , J. W. T. Hessels , Z. Bensellam , L. P. Zwaan , P. Chawla , O. S. Ould-Boukattine , F. Kirsten , J. T. Faber , V. Gajjar

The structure function (SF) analysis is a powerful tool for studying plasma turbulence. Theoretically, the SF of Faraday rotation measure (RM) is expected to include a geometric component due to the relative orientation of sightlines…

High Energy Astrophysical Phenomena · Physics 2025-01-16 Rui-Nan Li , Zhen-Yin Zhao , Qin Wu , Shuang-Xi Yi , Fa-Yin Wang

Fast radio bursts (FRBs) are brief, bright, extragalactic radio flashes. Their physical origin remains unknown, but dozens of possible models have been postulated. Some FRB sources exhibit repeat bursts. Though over a hundred FRB sources…

Fast radio bursts are brief, highly dispersed bursts detected in the radio band, originating from cosmological distances. The only such event detected in the Milky Way galaxy, FRB 20200428DD, was associated with an X-ray burst emitted by a…

High Energy Astrophysical Phenomena · Physics 2024-10-04 Bing Zhang

Frequency-dependent polarization properties provide crucial insights into the radiation mechanisms and magnetic environments of fast radio bursts (FRBs). We explore an analytical solution of radiative transfer of the polarization properties…

High Energy Astrophysical Phenomena · Physics 2025-04-11 Wei-Yang Wang , Xiaohui Liu , Dongzi Li , Bing Zhang , Chen-Hui Niu , Jifeng Liu , Renxin Xu , Weiwei Zhu , Kejia Lee

Fast radio burst (FRBs) are an exciting class of bright, extragalactic, millisecond radio transients. The recent development of large field-of-view (FOV) radio telescopes has caused a rapid rise in the number of identified single burst and…

High Energy Astrophysical Phenomena · Physics 2021-08-24 Matthew Lundy

There has been a rapid increase in the known fast radio burst (FRB) population, yet the progenitor(s) of these events have remained an enigma. A small number of FRBs have displayed some level of quasi-periodicity in their burst profile,…

Fast radio bursts (FRBs) are transient intense radio pulses with duration of milliseconds. Although the first FRB was detected more than a decade ago, the progenitors of these energetic events are not yet known. The currently preferred…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Esha Kundu , Lilia Ferrario

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 mysterious radio transients with uncertain origins and environments. Recent studies suggest that some active FRBs may originate from compact objects in binary systems. In this work, we develop a unified…

High Energy Astrophysical Phenomena · Physics 2026-02-18 Ke Bian , Can-Min Deng

Fast radio bursts (FRBs) are millisecond-duration extragalactic radio transients, some of which are associated with compact persistent radio sources (PRSs), hinting at a physical connection. While several models have been proposed to…

Recent observations of a small sample of repeating Fast Radio Bursts (FRBs) have revealed a periodicity in their bursting activity that may be suggestive of a binary origin for the modulation. We set out to explore the scenario where a…

High Energy Astrophysical Phenomena · Physics 2023-05-24 Kaustubh Rajwade , Jakob van den Eijnden

Most Fast Radio Burst (FRB) models are built from comparatively common astronomical objects: neutron stars, black holes and supernova remnants. Yet FRB sources are rare, and most of these objects, found in the Galaxy, do not make FRB.…

High Energy Astrophysical Phenomena · Physics 2021-08-20 J. I. Katz

Fast radio bursts (FRBs) are millisecond-duration extragalactic radio transients. They apparently fall into repeaters and non-repeaters. However, such a classification has lacked a motivation on the physical picture. Here we propose a…

High Energy Astrophysical Phenomena · Physics 2024-04-26 Ze-Nan Liu , Zhao-Yang Xia , Shu-Qing Zhong , Fa-Yin Wang , Zi-Gao Dai

The origin of fast radio bursts (FRBs) remains mysterious. Recently, the only repeating FRB source, FRB 121102, was reported to possess an extremely large and variable rotation measure (RM). The inferred magnetic field strength in the burst…

High Energy Astrophysical Phenomena · Physics 2018-02-28 Bing Zhang

Fast Radio Bursts (FRBs) are transient sources that emit a single radio pulse with a duration of only a few milliseconds. Since the discovery of the first FRB in 2007, tens of similar events have been detected. However, their physical…

High Energy Astrophysical Phenomena · Physics 2019-01-25 B. Marcote , Z. Paragi

Fast Radio Bursts (FRBs) are extragalactic transients of (sub-)millisecond duration that show wide-ranging spectral, temporal, and polarimetric properties. The polarimetric analysis of FRBs can be used to probe intervening media, study the…

High Energy Astrophysical Phenomena · Physics 2023-11-10 Pavan A. Uttarkar , R. M. Shannon , K. Gourdji , A. T. Deller , C. K. Day , S. Bhandari
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