首份 CHIME/FRB 快速射电暴目录
摘要
我们呈现一份由加拿大氢强度测绘实验快速射电暴(CHIME/FRB)项目在 2018 年 7 月 25 日至 2019 年 7 月 1 日期间于 400 至 800 MHz 探测到的 536 个快速射电暴(FRBs)的目录,其中包括来自 18 个先前报道的重复源的 62 个暴。该目录代表了首个具有均匀选择效应的单一巡天中观测到的大样本,包含重复暴与非重复暴。这有助于对 FRB 族群进行比较与绝对研究。我们表明,重复源与表观非重复源的天区位置与色散量(DMs)一致于从同一分布中抽取。然而,来自重复源的暴与表观非重复源在内在时间宽度与频谱带宽上有所不同。通过将模拟事件注入我们的探测流水线,我们执行了选择效应的绝对定标以考虑系统偏差。我们发现证据表明存在一个 FRB 族群——占整体族群的大部分——其在 600 MHz 处的散射时间超过 10 ms,其中仅有小部分被 CHIME/FRB 观测到。我们推断累积流量分布的幂律指数为 ,与欧几里得空间中非演化族群的 预期一致。我们发现 对于高 DM 事件更陡,对于低 DM 事件更平缓,这与 DM 和距离相关时所预期的情况一致。我们推断在 600 MHz 处流量 above 5 Jy ms、散射时间在 MHz 下低于 10 ms、且 DM 高于 100 pc cm 时的天区速率为 。
引用
@article{arxiv.2106.04352,
title = {The First CHIME/FRB Fast Radio Burst Catalog},
author = {FRB Collaboration and Mandana Amiri and Bridget C. Andersen and Kevin Bandura and Sabrina Berger and Mohit Bhardwaj and Michelle M. Boyce and P. J. Boyle and Charanjot Brar and Daniela Breitman and Tomas Cassanelli and Pragya Chawla and Tianyue Chen and J. -F. Cliche and Amanda Cook and Davor Cubranic and Alice P. Curtin and Meiling Deng and Matt Dobbs and Fengqiu and Dong and Gwendolyn Eadie and Mateus Fandino and Emmanuel Fonseca and B. M. Gaensler and Utkarsh Giri and Deborah C. Good and Mark Halpern and Alex S. Hill and Gary Hinshaw and Alexander Josephy and Jane F. Kaczmarek and Zarif Kader and Joseph W. Kania and Victoria M. Kaspi and T. L. Landecker and Dustin Lang and Calvin Leung and Dongzi Li and Hsiu-Hsien Lin and Kiyoshi W. Masui and Ryan Mckinven and Juan Mena-Parra and Marcus Merryfield and Bradley W. Meyers and Daniele Michilli and Nikola Milutinovic and Arash Mirhosseini and Moritz Münchmeyer and Arun Naidu and Laura Newburgh and Cherry Ng and Chitrang Patel and Ue-Li Pen and Emily Petroff and Tristan Pinsonneault-Marotte and Ziggy Pleunis and Masoud Rafiei-Ravandi and Mubdi Rahman and Scott M. Ransom and Andre Renard and Pranav Sanghavi and Paul Scholz and J. Richard Shaw and Kaitlyn Shin and Seth R. Siegel and Andrew E. Sikora and Saurabh Singh and Kendrick M. Smith and Ingrid Stairs and Chia Min Tan and S. P. Tendulkar and Keith Vanderlinde and Haochen Wang and Dallas Wulf and A. V. Zwaniga},
journal= {arXiv preprint arXiv:2106.04352},
year = {2023}
}
备注
67 pages, 27 figures, 5 tables. Published in ApJS and updated with changes reflected in an erratum (affecting the sky rate). Extended figures and data at https://www.chime-frb.ca/catalog