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We present deep optical and near-infrared observations of the host galaxies of 34 fast radio bursts (FRBs) detected by the Commensal Real-time ASKAP Fast Transient (CRAFT) survey on the Australian SKA Pathfinder (ASKAP) to compare the…

We report detection and analysis of the largest low-frequency (200 - 231.25 MHz) sample of Crab giant pulses (GPs) reported in the literature. In total about 95000 GPs were detected. The observations were performed in 2024/2025 with the…

High Energy Astrophysical Phenomena · Physics 2025-10-15 M. Sokolowski , P. Kumar , S. Dhavali , B. W. Meyers , N. D. R. Bhat , A. Bera , S. McSweeney

We report on the discovery and analysis of bursts from nine new repeating fast radio burst (FRB) sources found using the Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope. These sources span a dispersion measure (DM) range of…

Through the relationship between dispersion measures (DM) and redshifts, fast radio bursts (FRBs) are considered to be very promising cosmological probes. In this paper, we attempted to use the DM-z relationship of FRBs to study the helium…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-10 Liang Jing , Jun-Qing Xia

We constrain the Hubble constant H$_0$ using Fast Radio Burst (FRB) observations from the Australian Square Kilometre Array Pathfinder (ASKAP) and Murriyang (Parkes) radio telescopes. We use the redshift-dispersion measure (`Macquart')…

We present an extensive contemporaneous X-ray and radio campaign performed on the repeating fast radio burst (FRB) source FRB 20220912A for eight weeks immediately following the source's detection by CHIME/FRB. This includes X-ray data from…

We place empirical constraints on the physical properties of $\gamma-$ray burst events at cosmological distances. In particular we derive probability distributions for the radiation energy $E_\gamma$, the minimum Lorentz factor $\gamma_{\rm…

Astrophysics · Physics 2016-08-30 Eric Woods , Abraham Loeb

We report on the discovery and localization of fast radio bursts (FRBs) from the MeerTRAP project, a commensal fast radio transient-detection programme at MeerKAT in South Africa. Our hybrid approach combines a coherent search with an…

Fast radio bursts (FRBs) are extremely strong radio flares lasting several micro- to milliseconds and come from unidentified objects at cosmological distances, most of which are only seen once. Based on recently published data in the…

High Energy Astrophysical Phenomena · Physics 2022-10-06 Xiang-Han Cui , Cheng-Min Zhang , Di Li , Jian-Wei Zhang , Bo Peng , Wei-Wei Zhu , Richard Strom , Shuang-Qiang Wang , Na Wang , Qing-Dong Wu , De-Hua Wang , Yi-Yan Yang

We report the detection of repeat bursts from the source of FRB 171019, one of the brightest fast radio bursts (FRBs) detected in the Australian Square Kilometre Array Pathfinder (ASKAP) fly's eye survey. Two bursts from the source were…

Radio signals propagating through inhomogeneous plasma media deviate from their original paths, producing frequency-dependent magnification effects. In this paper, after reviewing the classical plasma-lensing theory, we have found a…

High Energy Astrophysical Phenomena · Physics 2025-09-26 Yu-Bin Wang , Xia Zhou , Abdusattar Kurban

We present 41 bursts from the first repeating fast radio burst discovered (FRB 121102). A deep search has allowed us to probe unprecedentedly low burst energies during two consecutive observations (separated by one day) using the Arecibo…

High Energy Astrophysical Phenomena · Physics 2019-06-05 K. Gourdji , D. Michilli , L. G. Spitler , J. W. T. Hessels , A. Seymour , J. M. Cordes , S. Chatterjee

Repeating fast radio bursts (FRBs) present excellent opportunities to identify FRB progenitors and host environments, as well as decipher the underlying emission mechanism. Detailed studies of repeating FRBs might also hold clues to the…

We present results of the search for hard X-ray/soft $\gamma$-ray emission in coincidence with publicly reported (via Transient Name Server, TNS; http://www.wis-tns.org/) fast radio bursts (FRBs). The search was carried out using continuous…

High Energy Astrophysical Phenomena · Physics 2023-12-05 A. Ridnaia , D. Frederiks , D. Svinkin

Fast radio bursts (FRBs) emit broad band radio wave radiation that may, in rare cases, encode atomic hydrogen (HI) absorption signals produced as they traverse the interstellar medium of their host galaxies. Combining such signals with high…

High Energy Astrophysical Phenomena · Physics 2026-02-12 Hugh Roxburgh , Marcin Glowacki , Apurba Bera , Clancy James

Recent studies of fast radio bursts (FRBs) have led to many theories associating them with young neutron stars. If this is the case, then the presence of supernova ejecta and stellar winds provide a changing dispersion measure (DM) and…

High Energy Astrophysical Phenomena · Physics 2018-08-01 Anthony L. Piro , B. M. Gaensler

We report on the temporal behavior of the high-energy power law continuum component of gamma-ray burst spectra with data obtained by the Burst and Transient Source Experiment. We have selected 126 high fluence and high flux bursts from the…

The frequency-dependent time delays in fast radio bursts (FRBs) can be used to constrain the photon mass, if the FRB redshifts are known, but the similarity between the frequency dependences of dispersion due to plasma effects and a photon…

We analyse archival data from the Parkes radio telescope which was observing a location 35.6$^\circ$ away from SGR 1806-20 during its giant $\gamma$-ray flare of 2004 December 27. We show that no FRB-like burst counterpart was detected, and…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Shriharsh P. Tendulkar , Victoria M. Kaspi , Chitrang Patel

Fast radio bursts (FRBs), millisecond-duration radio transient events, possess the potential to serve as excellent cosmological probes. The FRB redshift distribution contains information about the FRB sources, providing key constraints on…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-25 Hui Peng , Yu Yu