A Comprehensive Analysis on Repeating Fast Radio Bursts
Chen-Ran Hu, Yong-Feng Huang

TL;DR
This paper analyzes 16 repeating fast radio bursts, examining their parameters, behaviors, and correlations to better understand their origins, with findings on dispersion measure variations, Faraday rotation, and waiting time distributions.
Contribution
It provides a comprehensive comparison of repeating FRB properties, explores parameter correlations, and discusses implications for their physical mechanisms, which is novel in the detailed multi-parameter analysis.
Findings
DM of FRB 20121102A increases over time
Large DM variation in FRB 20190520B
Bimodal waiting time distribution in repeaters
Abstract
Nearly 700 fast radio burst (FRB) sources have been detected till now, among which 29 FRBs are found to burst out repeatedly. Although a firm connection between at least some FRBs and magnetars has been established, the trigger mechanism and radiation process in these enigma phenomena are still highly controversial. In this study, we build a sample of 16 repeating FRBs from which at least five bursts have been detected, including the most active four repeaters of FRBs 20121102A, 20180916B, 20190520B and 20201124A. Various key parameters of their bursts are collected from the literature, which include the arrival time, pulse width, dispersion measure (DM), Faraday rotation measure (RM), bandwidth, waiting time, peak flux and fluence. The distribution and time evolution of these parameters are investigated. Potential correlations between various parameter pairs are also extensively…
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Gamma-ray bursts and supernovae · Atomic and Subatomic Physics Research
