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Related papers: FRB event rate counts I --- Interpreting the Obser…

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We report on the detection of seven bursts from the periodically active, repeating fast radio burst (FRB) source FRB 180916.J0158+65 in the 300-400-MHz frequency range with the Green Bank Telescope (GBT). Emission in multiple bursts is…

The objects that emit extragalatic fast radio bursts (FRBs) remain unidentified. Studies of the host galaxies and environments of accurately localised ($\lesssim1$ arcsec) FRBs promise to deliver critical insights into the nature of their…

High Energy Astrophysical Phenomena · Physics 2021-12-15 Jerome Seebeck , Vikram Ravi , Liam Connor , Casey Law , Dana Simard , Bade Uzgil

Current observational evidence reveals that fast radio bursts (FRBs) exhibit bandwidths ranging from a few dozen MHz to several GHz. Traditional FRB searches primarily employ matched filter methods on time series collapsed across the entire…

FRB 121102, the first-known repeating fast radio burst (FRB) source, is associated with a dwarf host galaxy and compact, persistent radio source. In an effort to find other repeating FRBs, FIRST J141918.9+394036 (hereafter FIRST J1419+3940)…

High Energy Astrophysical Phenomena · Physics 2020-04-10 Kenzie Nimmo , Vishal Gajjar , Jason W. T. Hessels , Casey J. Law , Ryan S. Lynch , Andrew D. Seymour , Laura G. Spitler

Fast radio bursts (FRBs) are among the most mysterious astronomical transients. Due to their short durations and cosmological distances, their dispersion measure (DM) - redshift ($z$) relation is useful for constraining cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-07 Jiaming Zhuge , Marios Kalomenopoulos , Bing Zhang

Millisecond duration bright radio pulses at 1.4-GHz with high dispersion measures (DM) were reported by Lorimer et al., Keane et al., and Thornton et al. Their all-sky rate is $\approx 10^4$/day above $\sim$1 Jy. Related events are…

High Energy Astrophysical Phenomena · Physics 2015-06-18 S. R. Kulkarni , E. O. Ofek , J. D. Neill , Z. Zheng , M. Juric

Fast Radio Bursts (FRBs) are highly energetic transient events with duration of order of microseconds to milliseconds and of unknown origin. They are known to lie at cosmological distances, through localisation to host galaxies. Recently,…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Nayab Gohar , Chris Flynn

With the uGMRT having unprecedented sensitivity and unique capability of providing instantaneous frequency coverage of 250$-$1460 MHz, we studied ${\rm FRB}\,20180916$B over four months sampling during its active phase. We report the…

High Energy Astrophysical Phenomena · Physics 2026-04-06 Siddhartha Bhattacharyya , Jayanta Roy , Apurba Bera

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…

The nature of fast radio bursts (FRBs) is currently unknown. Repeating FRBs offer better opportunity than non-repeating FRBs since their simultaneous multi-wavelength counterparts might be identified. The magnetar flare model of FRBs is one…

High Energy Astrophysical Phenomena · Physics 2021-03-17 Shangyu Sun , Wenfei Yu , Yunwei Yu , Dongming Mao

We report on multiwavelength observations of FRB 20240114A, a nearby (z=0.13), hyperactive, repeating fast radio burst that was discovered in January 2024. We performed simultaneous observations of the source with the Effelsberg 100-m radio…

High Energy Astrophysical Phenomena · Physics 2025-03-05 F. Eppel , M. Krumpe , P. Limaye , N. Intrarat , J. Wongphechauxsorn , M. Cruces , W. Herrmann , F. Jankowski , P. Jaroenjittichai , L. G. Spitler , M. Kadler

Fast radio bursts (FRBs) are energetic, millisecond-duration radio pulses observed at extragalactic distances and whose origins are still a subject of heated debate. A fraction of the FRB population have shown repeating bursts, however it's…

We estimate the upper limit redshifts of known FRBs using the dispersion measure (DM) - redshift ($z$) relation and derive the upper limit peak luminosity $L_p$ and energy $E$ of FRBs within the observational band. The average $z$ upper…

High Energy Astrophysical Phenomena · Physics 2018-11-14 Bing Zhang

Fast radio bursts (FRBs) are millisecond-duration radio flashes of extragalactic origin, with magnetars implicated as viable central engines. Yet their triggering and radiation mechanisms remain unknown. Radio telescopes inevitably record…

High Energy Astrophysical Phenomena · Physics 2026-02-27 Chen-Ran Hu , Yong-Feng Huang , Jin-Jun Geng , Chen Deng , Ze-Cheng Zou , Xiao-Fei Dong , Yi-Dan Wang , Pei Wang , Fan Xu , Lang Cui , Song-Bo Zhang , Xue-Feng Wu

To probe this question, we perform a statistical analysis using the first Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) catalog and identify a few discriminant properties between repeating and non-repeating…

High Energy Astrophysical Phenomena · Physics 2022-03-09 Shu-Qing Zhong , Wen-Jin Xie , Can-Min Deng , Long Li , Zi-Gao Dai , Hai-Ming Zhang

Fast radio bursts (FRBs) are mysterious millisecond pulses in radio, most of which originate from distant galaxies. Revealing the origin of FRBs is becoming central in astronomy. The redshift evolution of the FRB energy function, i.e., the…

A handful of fast radio bursts (FRBs) are now known to repeat. However, the question remains --- do they all? We report on an extensive observational campaign with the Australian Square Kilometre Array Pathfinder (ASKAP), Parkes, and Robert…

We report our discovery in Swift satellite data of a transient gamma-ray counterpart (3.2$\sigma$ confidence) to the fast radio burst FRB131104, the first such counterpart to any FRB. The transient has duration $T_{90} \gtrsim 100$s and…

High Energy Astrophysical Phenomena · Physics 2022-02-09 J. J. DeLaunay , D. B. Fox , K. Murase , P. Mészáros , A. Keivani , C. Messick , M. A. Mostafá , F. Oikonomou , G. Tešić , C. F. Turley

Several theories exist to explain the source of the bright, millisecond duration pulses known as fast radio bursts (FRBs). If the progenitors of FRBs are non-cataclysmic, such as giant pulses from pulsars, pulsar-planet binaries, or…

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