CHIME/FRB 第二版快速射电暴目录
高能天体物理现象
2026-01-15 v1 宇宙学与河外天体物理
天体物理仪器与方法
摘要
我们呈现了一份包含 4539 个快速射电暴（FRB）的目录，这些射电暴是使用加拿大氢强度测绘实验（CHIME）望远镜在 2018 年 7 月 25 日至 2023 年 9 月 15 日期间观测到的。这些暴发来自 3641 个独立源，包括来自 83 个已知重复源的 981 次暴发。对于每个 FRB，该目录提供了 的天体位置估计，以及观测期间累积曝光时间和巡天灵敏度的相应测量值。它包含了分辨率为 0.983 ms 的 400 至 800 MHz 总强度动态谱。根据该光谱，我们限制了暴发形态模型，并测量了到达时间、本征时间宽度、色散量、散射时间和流量密度等关键参数。第二版目录包含了第一版目录中的所有 FRB，每个事件都使用统一且改进的分析框架进行了重新处理。我们表明，先前发表的推论在更新后的测量下仍然有效。我们评估了观测参数间探测率的一致性，展示了暴发属性的初步分布，并概述了将使用该目录研究 FRB 本质及其作为天体物理和宇宙学探针效用的正在进行和未来的研究。
引用
@article{arxiv.2601.09399,
title = {The Second CHIME/FRB Catalog of Fast Radio Bursts},
author = {FRB Collaboration and Thomas Abbott and Bridget C. Andersen and Shion Andrew and Kevin Bandura and Mohit Bhardwaj and Yash Bhusare and Charanjot Brar and Tomas Cassanelli and Shami Chatterjee and Jean-Francois Cliche and Amanda M. Cook and Alice Curtin and Matt Dobbs and Fengqiu Adam Dong and Gwendolyn Eadie and Tarraneh Eftekhari and Emmanuel Fonseca and B. M. Gaensler and Deborah Good and Mark Halpern and Jason W. T. Hessels and Adaeze Ibik and Naman Jain and Ronniy C. Joseph and Zarif Kader and Victoria M. Kaspi and Afrokk Khan and Bikash Kharel and Ajay Kumar and T. L. Landecker and Dustin Lang and Adam E. Lanman and Magnus L'Argent and Mattias Lazda and Calvin Leung and Dong Zi Li and Chris J. Lintott and Robert Main and Kiyoshi W. Masui and Sujay Mate and Kyle McGregor and Ryan Mckinven and Juan Mena-Parra and Bradley W. Meyers and Daniele Michilli and Cherry Ng and Mason Ng and Kenzie Nimmo and Gavin Noble and Ayush Pandhi and Swarali S. Patil and Aaron B. Pearlman and Ue-Li Pen and Ziggy Pleunis and J. Xavier Prochaska and Masoud Rafiei-Ravandi and Scott Ransom and Andre Renard and Mawson W. Sammons and Ketan R. Sand and Paul Scholz and Vishwangi Shah and Kaitlyn Shin and Seth R. Siegel and Sloane Sirota and Kendrick Smith and Ingrid Stairs and David C. Stenning and Shriharsh P. Tendulkar and Keith Vanderlinde and Mike Walmsley and Haochen Wang and Dallas Wulf},
journal= {arXiv preprint arXiv:2601.09399},
year = {2026}
}
备注
36 pages, 15 figures, 4 tables. Extended figures and data at http://www.chime-frb.ca/catalog2