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The origins of fast radio bursts (FRBs), astronomical transients with millisecond timescales, remain unknown. One of the difficulties stems from the possibility that observed FRBs could be heterogeneous in origin; as some of them have been…

High Energy Astrophysical Phenomena · Physics 2021-10-20 Bo Han Chen , Tetsuya Hashimoto , Tomotsugu Goto , Seong Jin Kim , Daryl Joe D. Santos , Alvina Y. L. On , Ting-Yi Lu , Tiger Y. -Y. Hsiao

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 commonly classified into repeating and apparently nonrepeating sources, yet whether this distinction reflects intrinsically different physical populations remains uncertain. Using the Second CHIME/FRB Catalog,…

High Energy Astrophysical Phenomena · Physics 2026-03-16 Wan-Peng Sun , Yin-Long Cao , Yong-Kun Zhang , Ji-Guo Zhang , Xiaohui Liu , Yichao Li , Fu-Wen Zhang , Wan-Ting Hou , Jing-Fei Zhang , Xin Zhang

Fast Radio Bursts (FRBs) are highly energetic millisecond-duration astrophysical phenomena typically categorized as repeaters or non-repeaters. However, observational limitations may result in misclassifications, potentially leading to a…

High Energy Astrophysical Phenomena · Physics 2025-04-16 Da-Chun Qiang , Jie Zheng , Zhi-Qiang You , Sheng Yang

Fast radio bursts (FRBs) are short-duration and energetic radio transients of unknown origin. Observationally, they are commonly categorized into repeaters and non-repeaters. However, this binary classification may be influenced by…

Instrumentation and Methods for Astrophysics · Physics 2025-09-04 Liang Liu , Hai-Nan Lin , Li Tang

The repeating behavior of fast radio bursts (FRBs) is regarded as a key clue to understanding their physical origin, yet reliably distinguishing repeaters from apparent non-repeaters with current observations remains challenging. Here we…

High Energy Astrophysical Phenomena · Physics 2026-02-24 Wan-Peng Sun , Yong-Kun Zhang , Ji-Guo Zhang , Xiaohui Liu , Yichao Li , Fu-Wen Zhang , Wan-Ting Hou , Jing-Fei Zhang , Xin Zhang

Fast Radio Bursts (FRBs) are classified into repeaters and non-repeaters, with only a few percent of the observed FRB population from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) confirmed as repeaters. However, this figure…

High Energy Astrophysical Phenomena · Physics 2023-12-13 Shotaro Yamasaki , Tomotsugu Goto , Chih-Teng Ling , Tetsuya Hashimoto

Fast radio bursts (FRBs) are one of the most mysterious astronomical transients. Observationally, they can be classified into repeaters and apparently non-repeaters. However, due to the lack of continuous observations, some apparently…

High Energy Astrophysical Phenomena · Physics 2023-01-03 Jia-Ming Zhu-Ge , Jia-Wei Luo , Bing Zhang

Fast Radio Bursts (FRBs) are millisecond-duration radio transients of extragalactic origin, exhibiting a wide range of physical and observational properties. Distinguishing between repeating and non-repeating FRBs remains a key challenge in…

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 astronomical radio transients of unknown origin. A minority of FRBs have been observed to originate from repeating sources, and it is unknown which apparent one-off bursts are hidden repeaters. Recent studies…

High Energy Astrophysical Phenomena · Physics 2024-09-13 Arjun Sharma , Vinesh Maguire Rajpaul

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) are millisecond-duration extragalactic transients, observationally classified as repeaters or nonrepeaters. This classification may be biased, as some apparently non-repeating sources could simply have undetected…

High Energy Astrophysical Phenomena · Physics 2025-12-09 N. Mankatwit , P. Thongkonsing , S. Loekkesee , P. Chainakun , W. Luangtip , S. Sanpa-arsa

Observationally, the mysterious fast radio bursts (FRBs) are classified as repeating ones and apparently non-repeating ones. While repeating FRBs cannot be classified into the non-repeating group, it is unknown whether the apparently…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Jia-Wei Luo , Jia-Ming Zhu-Ge , Bing Zhang

Fast Radio Bursts (FRBs), a class of millisecond-scale, highly energetic phenomena with unknown progenitors and radiation mechanisms, require proper statistical analysis as a key method for uncovering their mysteries. In this research, we…

High Energy Astrophysical Phenomena · Physics 2025-02-27 Xianghan Cui , Clancy James , Di Li , Chengmin Zhang

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),…

To probe this question, we perform a statistical analysis using the first Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) catalog and identify a few discriminant properties between repeating and non-repeating…

High Energy Astrophysical Phenomena · Physics 2022-03-09 Shu-Qing Zhong , Wen-Jin Xie , Can-Min Deng , Long Li , Zi-Gao Dai , Hai-Ming Zhang

We present a catalog of 536 fast radio bursts (FRBs) detected by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) Project between 400 and 800 MHz from 2018 July 25 to 2019 July 1, including 62 bursts from 18…

Fast radio bursts (FRBs) are millisecond-duration extragalactic radio transients. They apparently fall into repeaters and non-repeaters. However, such a classification has lacked a motivation on the physical picture. Here we propose a…

High Energy Astrophysical Phenomena · Physics 2024-04-26 Ze-Nan Liu , Zhao-Yang Xia , Shu-Qing Zhong , Fa-Yin Wang , Zi-Gao Dai

Fast radio bursts (FRBs) are bright, millisecond-duration radio pulses whose origins are unknown. To date, only one (FRB 121102) out of several dozen has been seen to repeat, though the extent to which it is exceptional remains unclear. We…

High Energy Astrophysical Phenomena · Physics 2018-07-11 Liam Connor , Emily Petroff
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