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Fast Radio Bursts (FRBs) are extragalactic transients of (sub-)millisecond duration that show wide-ranging spectral, temporal, and polarimetric properties. The polarimetric analysis of FRBs can be used to probe intervening media, study the…

High Energy Astrophysical Phenomena · Physics 2023-11-10 Pavan A. Uttarkar , R. M. Shannon , K. Gourdji , A. T. Deller , C. K. Day , S. Bhandari

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…

Fast Radio Bursts (FRBs) are bright millisecond radio pulses. Their origin is still unknown in the field of astronomy. A notable distinction among FRBs is that some sources repeat, while others appear to be non-repeating events.…

CHIME has now detected 18 repeating fast radio bursts (FRBs). We explore what can be learned about the energy distribution and activity level of the repeaters by fitting realistic FRB population models to the data. For a power-law energy…

High Energy Astrophysical Phenomena · Physics 2020-09-09 Wenbin Lu , Anthony L. Piro , Eli Waxman

Fast radio burst (FRB) science primarily revolves around two facets: the origin of these bursts and their use in cosmological studies. This work follows from previous redshift-dispersion measure ($z$-DM) analyses in which we model…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-19 Jordan Hoffmann , Clancy W. James , Marcin Glowacki , Jason X. Prochaska , Alexa C. Gordon , Adam T. Deller , Ryan M. Shannon , Stuart D. Ryder

Observationally, fast radio bursts (FRBs) can be divided into repeating and apparently non-repeating (one-off) ones. It is unclear whether all FRBs repeat and whether there are genuine non-repeating FRBs. We attempt to address these…

High Energy Astrophysical Phenomena · Physics 2021-01-13 Shunke Ai , He Gao , Bing Zhang

Fast radio bursts (FRBs) are enigmatic high-energy events with unknown origins, which are observationally divided into two categories, i.e., repeaters and non-repeaters. However, there are potentially a number of non-repeaters that may be…

High Energy Astrophysical Phenomena · Physics 2025-02-14 Wan-Peng Sun , Ji-Guo Zhang , Yichao Li , Wan-Ting Hou , Fu-Wen Zhang , Jing-Fei Zhang , Xin Zhang

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 present a method to estimate the source properties of FRBs from observations by assuming a fixed DM contribution from a MW-like host galaxy, pulse temporal broadening models for turbulent plasma and a flat FRB energy spectrum. We then…

High Energy Astrophysical Phenomena · Physics 2020-11-11 Mukul Bhattacharya , Pawan Kumar

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…

An important task in the study of fast radio bursts (FRBs) remains the automatic classification of repeating and non-repeating sources based on their morphological properties. We propose a statistical model that considers a modified…

Fast radio bursts (FRBs) are extremely strong radio flares lasting several milliseconds, most of which come from unidentified objects at a cosmological distance. They can be apparently repeating or not. In this paper, we analyzed 18…

Fast radio bursts (FRBs) are radio transients of extragalactic origin lasting for about a few to several milli-seconds. We have analyzed both non-CHIME and CHIME FRB data. To circumvent the absence of measured fluence and flux density of…

High Energy Astrophysical Phenomena · Physics 2024-12-24 Nidhi Saini , Patrick Das Gupta

Fast radio bursts (FRBs) are mysterious astronomical phenomena, and it is still uncertain whether they consist of multiple types. In this study we use two nonlinear dimensionality reduction algorithms - Uniform Manifold Approximation and…

High Energy Astrophysical Phenomena · Physics 2023-05-17 X. Yang , S. -B. Zhang , J. -S. Wang , X. -F. Wu

Fast Radio Bursts (FRBs) have emerged as powerful probes of baryonic matter in the Universe, offering constraints on cosmological and feedback parameters through their extragalactic dispersion measure-redshift (DM$_\mathrm{exgal}$-$z$)…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-24 Kritti Sharma , Vikram Ravi , Liam Connor , Elisabeth Krause , Pranjal R. S. , Dhayaa Anbajagane

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 millisecond-duration radio transients of extragalactic origin. Classifying repeating FRBs is essential for understanding their emission mechanisms, but remains challenging due to their short durations, high…

High Energy Astrophysical Phenomena · Physics 2026-01-23 An-Chieh Hsu , Tetsuya Hashimoto , Tomotsugu Goto , Tomoki Wada , Bjorn Jasper Raquel

Fast radio bursts (FRBs) are short-duration radio transients of unknown origin. Thus far, they have been blindly detected at millisecond timescales with dispersion measures (DMs) between 110--2600\,pc\,cm$^{-3}$. However, the observed pulse…

High Energy Astrophysical Phenomena · Physics 2019-07-10 Liam Connor

Fast Radio Bursts (FRBs) are millisecond-duration transient events that are typically observed at radio wavelengths and cosmological distances but their origin remains unclear. Furthermore, most FRB origin models are related to the…

High Energy Astrophysical Phenomena · Physics 2025-07-24 Yu-Hao Zhu , Chen-Hui Niu , Xiang-Han Cui , Di Li , Yi-Feng , Chao-Wei Tsai , Pei Wang , Yong-Kun Zhang , Fanyi Meng , Zheng Zheng