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Fast radio bursts (FRBs) are highly dispersed, sporadic radio pulses that are likely extragalactic in nature. Here we investigate the constraints on the source population from surveys carried out at frequencies $<1$~GHz. All but one FRB has…

高能天体物理现象 · 物理学 2016-12-21 Kaustubh Rajwade , Duncan Lorimer

We discuss the possibility of using fast radio bursts (FRBs), if cosmological, as a viable cosmic probe. We find out that the contribution of the host galaxies to the detected dispersion measures can be inapparent for the FRBs not from…

宇宙学与河外天体物理 · 物理学 2014-05-26 Bei Zhou , Xiang Li , Tao Wang , Yi-Zhong Fan , Da-Ming Wei

Fast Radio Bursts (FRBs) are bright radio transient events, a subset of which have been localized to their host galaxies. Their high dispersion measures offer valuable insights into the ionized plasma along their line of sight, enabling…

宇宙学与河外天体物理 · 物理学 2025-04-24 Surajit Kalita , Shruti Bhatporia , Amanda Weltman

Fast radio bursts (FRBs) are extremely powerful sources of radio waves observed at cosmological distances. We use a sophisticated model of FRB observations -- presented in detail in a companion paper -- to fit FRB population parameters…

高能天体物理现象 · 物理学 2021-11-17 C. W. James , J. X. Prochaska , J. -P. Macquart , F. North-Hickey , K. W. Bannister , A. Dunning

We analyze the sources of free electrons that produce the large dispersion measures, DM $\approx 300-1600$ (in units cm$^{-3}$ pc), observed toward fast radio bursts (FRBs). Individual galaxies typically produce DM $\sim 25-60$ cm$^{-3}$ pc…

宇宙学与河外天体物理 · 物理学 2018-01-10 J. Michael Shull , Charles W. Danforth

Fast radio bursts (FRBs) are immensely energetic millisecond-duration radio pulses. Observations indicate that nearby FRBs can be produced by old stellar populations, as suggested by the localization of the repeating source FRB 20200120E in…

高能天体物理现象 · 物理学 2024-08-01 S. B. Zhang , J. S. Wang , X. Yang , Y. Li , J. J. Geng , Z. F. Tang , C. M. Chang , J. T. Luo , X. C. Wang , X. F. Wu , Z. G. Dai , B. Zhang

Recent work has exploited pulsar survey data to identify temporally isolated, millisecond-duration radio bursts with large dispersion measures (DMs). These bursts have been interpreted as arising from a population of extragalactic sources,…

Fast radio bursts (FRBs) are an emerging class of bright, highly dispersed radio pulses. Recent work by Thornton et al. (2013) has revealed a population of FRBs in the High Time Resolution Universe (HTRU) survey at high Galactic latitudes.…

We aim to unveil their 3-dimensional geometry of Abell 2255 through WSRT observations at 18, 21, 25, 85, and 200 cm. The polarization images of the cluster were processed through rotation measure (RM) synthesis, producing three final RM…

宇宙学与河外天体物理 · 物理学 2015-05-19 R. F. Pizzo , A. G. de Bruyn , G. Bernardi , M. A. Brentjens

There are by now ten published detections of fast radio bursts (FRBs), single bright GHz-band millisecond pulses of unknown origin. Proposed explanations cover a broad range from exotic processes at cosmological distances to atmospheric and…

Six cases of fast radio bursts (FRBs) have recently been discovered. The FRBs are bright (~0.1 - 1 Jy) and brief (~ 1 ms) pulses of radio emission with dispersion measures (DMs) that exceed Galactic values, and hence FRBs have been…

高能天体物理现象 · 物理学 2015-06-17 Abraham Loeb , Yossi Shvartzvald , Dan Maoz

Extragalactic fast radio bursts (FRBs) have emerged as powerful probes of turbulence within the intergalactic medium (IGM), a phenomenon that plays a crucial role in various cosmological and astrophysical processes. In this study, we employ…

高能天体物理现象 · 物理学 2026-05-06 Rui-Nan Li , Zhao Joseph Zhang , Kentaro Nagamine , Yuri Oku , Qin Wu , F. Y. Wang

Fast radio bursts (FRBs) are one of the most tantalizing mysteries of the radio sky; their progenitors and origins remain unknown and until now no rapid multiwavelength follow-up of an FRB has been possible. New instrumentation has…

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…

The rate of fast radio bursts (FRBs) in the direction of nearby galaxy clusters is expected to be higher than the mean cosmological rate if intrinsically faint FRBs are numerous. In this paper, we describe a targeted search for faint FRBs…

The repeating fast radio burst (FRB) 121102 was recently localized in a dwarf galaxy at a cosmological distance. The dispersion measure (DM) derived for each burst from FRB 121102 so far has not shown significant evolution, even though an…

高能天体物理现象 · 物理学 2017-09-27 Yuan-Pei Yang , Bing Zhang

The discovery of Persistent Radio Sources (PRSs) associated with three repeating fast radio bursts (FRBs) has provided insight into the local environments of these FRBs. Here, we present deep radio observations of the fields surrounding…

高能天体物理现象 · 物理学 2025-09-10 Yash Bhusare , Yogesh Maan , Ajay Kumar

We report on improved sky localizations of thirteen repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope. These so-called 'baseband localizations'…

Fast radio bursts appear to exhibit large dispersion measures, typically exceeding any expected galactic interstellar contribution, especially along the moderate to high-galactic-latitude directions in which such events have been most often…

高能天体物理现象 · 物理学 2015-06-19 Brian Dennison

The discovery of a repeating fast radio burst has led to the first precise localization, an association with a dwarf galaxy, and the identification of a coincident persistent radio source. However, further localizations are required to…

高能天体物理现象 · 物理学 2018-09-25 T. Eftekhari , E. Berger , P. K. G. Williams , P. K. Blanchard