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Fast radio bursts (FRBs) are millisecond duration transients observed in the radio band, with their origin and radiation mechanism remaining unclear to date. Growing evidence indicates that at least some FRBs originate from magnetars and…

High Energy Astrophysical Phenomena · Physics 2024-11-08 Yu-Chen Huang , Zi-Gao Dai

We present a new fast radio burst (FRB) at 920 MHz discovered during commensal observations conducted with the Australian Square Kilometre Array Pathfinder (ASKAP) as part of the Commensal Real-time ASKAP Fast Transients (CRAFT) survey. FRB…

The vast majority of extragalactic compact continuum radio sources are associated with star formation or jets from (super)massive black holes and, as such, are more likely to be found in association with starburst galaxies or early-type…

High Energy Astrophysical Phenomena · Physics 2023-12-20 D. Vohl , H. K. Vedantham , J. W. T. Hessels , C. G. Bassa , D. O. Cook , D. L. Kaplan , T. W. Shimwell , C. Zhang

Asteroids orbiting into the highly magnetized and highly relativistic wind of a pulsar offer a favourable configuration for repeating fast radio bursts (FRB). The body in direct contact with the wind develops a trail formed of a stationary…

High Energy Astrophysical Phenomena · Physics 2021-01-04 Fabrice Mottez , Philippe Zarka , Guillaume Voisin

Fast radio bursts (FRBs) are bright radio transients with short durations and extremely high brightness temperatures, and their physical origins are still unknown. Recently, a repeating source, FRB 20200120E, was found in a globular cluster…

High Energy Astrophysical Phenomena · Physics 2021-10-20 Yuan-Pei Yang

Fast radio bursts (FRBs) are millisecond-duration, bright ($\sim$Jy) extragalactic bursts, whose production mechanism is still unclear. Recently, two repeating FRBs were found to have a physically associated persistent radio source of…

The dispersion of extragalactic fast radio bursts (FRBs) can serve as a powerful probe of the diffuse plasma between and surrounding galaxies, which contains most of the Universe's baryons. By cross-correlating the dispersion of background…

We report on the optical spectroscopic observations of the host galaxy of the hyperactive repeating fast radio burst, FRB 20240114A. The host galaxy is a dwarf galaxy at a redshift of $z=0.1306\pm0.0002$. With a rest-frame coverage of…

Fast Radio Burst FRB 20180916B in its host galaxy SDSS J015800.28+654253.0 at 149 Mpc is by far the closest-known FRB with a robust host galaxy association. The source also exhibits a 16.35-day period in its bursting. Here we present…

Fast radio bursts (FRBs), especially those from repeating sources, exhibit a rich variety of morphologies in their dynamic spectra (or waterfalls). Characterizing these morphologies and spectro-temporal properties is a key strategy in…

High Energy Astrophysical Phenomena · Physics 2025-11-26 Mohammed A. Chamma , Victor Pop , Fereshteh Rajabi

Recently a population of compact radio galaxies were classified as Fanaroff-Riley type 0 radio galaxies (FR 0s). The physical nature of FR 0s and the connection with the classical FR I and II galaxies are not currently well understood.…

High Energy Astrophysical Phenomena · Physics 2018-08-29 X. -P. Cheng , T. An

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

We present a synthesis of fast radio burst (FRB) morphology (the change in flux as a function of time and frequency) as detected in the 400-800 MHz octave by the FRB project on the Canadian Hydrogen Intensity Mapping Experiment (CHIME/FRB),…

Fast radio bursts (FRBs) are highly energetic events of short-duration intense radio emission, the origin of which remains elusive till date. Polarization of the FRB signals carry information about the emission source as well as the…

Observations of the Faraday rotation measure, combined with the dispersion measure, can be used to infer the magnetoionic environment of a radio source. We investigate the magnetoionic environments of FRBs by deriving their estimated…

High Energy Astrophysical Phenomena · Physics 2020-10-14 Wei-Yang Wang , Bing Zhang , Xuelei Chen , Renxin Xu

We present the first X-ray census of fast radio burst (FRB) host galaxies to conduct the deepest search for AGN and X-ray counterparts to date. Our sample includes seven well-localized FRBs with unambiguous host associations and existing…

Fast radio bursts (FRBs) are bright millisecond radio bursts at cosmological distances. Only a small fraction of FRBs apparently repeat. Polarization, a fundamental property of electromagnetic signals, often carries critical information…

High Energy Astrophysical Phenomena · Physics 2022-12-13 Yi Feng , Yong-Kun Zhang , Di Li , Yuan-Pei Yang , Pei Wang , Chen-Hui Niu , Shi Dai , Ju-Mei Yao

The dispersion measures (DM) of fast radio bursts (FRBs) encode the integrated electron density along the line-of-sight, which is typically dominated by the intergalactic medium (IGM) contribution in the case of extragalactic FRBs. In this…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-30 Khee-Gan Lee , Metin Ata , Ilya S. Khrykin , Yuxin Huang , J. Xavier Prochaska , Jeff Cooke , Jielai Zhang , Adam Batten

Fast radio bursts (FRBs) are observed to be highly polarized. Most have high linear polarization but a small fraction show significant circular polarization. We systematically investigate a variety of polarization mechanisms of FRBs within…

High Energy Astrophysical Phenomena · Physics 2023-04-19 Yuanhong Qu , Bing Zhang

A correlation between the intrinsic energy and the burst duration of non-repeating fast radio bursts (FRBs) has been reported. If it exists, the correlation can be used to estimate intrinsic energy from the duration, and thus can provide us…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-20 Seong Jin Kim , Tetsuya Hashimoto , Bo Han Chen , Tomotsugu Goto , Simon C. -C. Ho , Tiger Yu-Yang Hsiao , Yi Hang Valerie Wong , Shotaro Yamasaki
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