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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

Thirty-three fast radio bursts (FRBs) had been detected by March 2018. Although the sample size is still limited, meaningful statistical studies can already be carried out. The normalised luminosity function places important constraints on…

高能天体物理现象 · 物理学 2018-09-26 Rui Luo , Kejia Lee , Duncan R. Lorimer , Bing Zhang

The distribution of the apparent total energy emitted by a gamma-ray burst reflects not only the distribution of the energy actually released by the burst engine, but also the distribution of beaming angles. Using the observed energy…

天体物理学 · 物理学 2009-11-06 David L. Band

When fast radio burst (FRB) waves propagate through the local (< 1 pc) environment of the FRB source, electrons in the plasma undergo large-amplitude oscillations. The finite-amplitude effects cause the effective plasma frequency and…

高能天体物理现象 · 物理学 2020-08-10 Wenbin Lu , E. Sterl Phinney

The event rate, energy distribution, and time-domain behaviour of repeating fast radio bursts (FRBs) contains essential information regarding their physical nature and central engine, which are as yet unknown. As the first…

We report the first discovery of a fast radio burst (FRB), FRB 20200125A, by the Green Bank Northern Celestial Cap (GBNCC) Pulsar Survey conducted with the Green Bank Telescope at 350 MHz. FRB 20200125A was detected at a Galactic latitude…

The dispersion measure (DM) of fast radio bursts (FRBs) in conjunction with their redshifts can be used as powerful probes of the distribution of extragalactic plasma. With a large enough sample, the free-electron--galaxy power spectrum…

宇宙学与河外天体物理 · 物理学 2026-02-17 April Qiu Cheng , Shion Elizabeth Andrew , Haochen Wang , Kiyoshi W. Masui

Fast radio bursts (FRBs) are bright, mostly millisecond-duration transients of extragalactic origin whose emission mechanisms remain unknown. As FRB signals propagate through ionized media, they experience frequency-dependent delays…

高能天体物理现象 · 物理学 2026-01-21 Hosein Rajabi , Zhejian Liu , Fereshteh Rajabi , Martin Houde

Fast radio bursts (FRBs) are millisecond-duration radio transients. As they propagate through the interstellar medium, they interact with free electrons, resulting in dispersion. The corresponding dispersion measure (DM) is referred to as…

高能天体物理现象 · 物理学 2026-04-03 Yi Feng , Dengke Zhou , Y. -K. Zhang , D. Li , Jianhua Fang , Jiaying Xu , Chenyuan Xu , Jintao Xie

In this paper we identify some sub-optimal performance in algorithms that search for Fast Radio Bursts (FRBs), which can reduce the cosmological volume probed by over 20%, and result in missed discoveries and incorrect flux density and sky…

高能天体物理现象 · 物理学 2015-06-22 E. F. Keane , E. Petroff

The repeating fast radio burst (FRB) source FRB 20200120E is exceptional because of its proximity and association with a globular cluster. Here we report $60$ bursts detected with the Effelsberg telescope at 1.4 GHz. We observe large…

Fast Radio Bursts (FRBs) are a class of highly energetic, mostly extragalactic radio transients lasting for a few milliseconds. While over 600 FRBs have been published so far, their origins are presently unclear, with some theories for…

We present Monte-Carlo simulations of a cosmological population of repeating fast radio burst (FRB) sources whose comoving density follows the cosmic star formation rate history. We assume a power-law model for the intrinsic energy…

高能天体物理现象 · 物理学 2019-02-20 M. Caleb , B. Stappers , K. Rajwade , C. Flynn

Fast radio bursts (FRBs) are millisecond radio pulses with extremely high bright temperature. Their physical origin is still a mystery. The discovery of FRB 20020428 supports the idea that at least a portion of FRBs is generated by…

高能天体物理现象 · 物理学 2025-07-23 H. T. Lan , S. X. Yi , F. Y. Wang

We calculate the dispersion measure (DM) contributed by the intergalactic medium (IGM) to the total measured DM for fast radio bursts (FRBs). We use the MareNostrum Instituto de Ciencias del Espacio (MICE) Onion Universe simulation (Fosalba…

高能天体物理现象 · 物理学 2020-01-08 N. Pol , M. T. Lam , M. A. McLaughlin , T. J. W. Lazio , J. M. Cordes

The Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) project has discovered the most repeating fast radio burst (FRB) sources of any telescope. However, most of the physical conclusions derived from this sample…

Fast radio bursts (FRBs) provide a sensitive probe of ionized baryons through their dispersion measure (DM). In addition to slowly evolving cosmological terms, at least two repeaters now show clear secular DM-decrease episodes:…

高能天体物理现象 · 物理学 2026-03-11 Zhao Joseph Zhang , Gaku Kawashima , Shiu-Hang Lee , Kentaro Nagamine , Bing Zhang , Yusei Fujimaru

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…

高能天体物理现象 · 物理学 2016-10-19 H. K. Vedantham , V. Ravi , G. Hallinan , R. Shannon

Fast Radio Bursts (FRBs) are isolated, $\ms$ radio pulses with dispersion measure (DM) of order $10^3\DMunit$. Galactic candidates for the DM of high latitude bursts detected at $\GHz$ frequencies are easily dismissed. DM from bursts…

高能天体物理现象 · 物理学 2015-06-18 Jing Luan , Peter Goldreich

The dispersion measures (DMs) of fast radio bursts (FRBs) encode the total ionized-gas column densities along their sightlines. Most observed FRBs originate at distances where the cosmological principle applies. Thus, variations in the DM…

宇宙学与河外天体物理 · 物理学 2026-04-08 Vikram Ravi , Kritti Sharma , Liam Connor