CHIME/FRB Outriggers：设计概述
高能天体物理现象
2025-04-08 v1 天体物理仪器与方法
摘要
加拿大氢强度映射实验（CHIME）通过其快速瞬时搜索后端 CHIME/FRB\@ 已成为研究快速脉冲星（FRB）的世界领先设施。CHIME/FRB Outriggers 项目将通过非常基线干涉仪（VLBI）来增强其每天检测到 2--3 颗 FRB 的高检测率，从而实现精确定位。本项目在北美部署了三个战略选址的站点，并采用最近开发的同步 VLBI 观测技术，Outriggers 将为大多数检测到的 FRB 提供约 50 毫弧秒的定位精度。本文概述了 Outriggers 的设计与实施，涵盖其地理分布、结构设计和观测能力。我们详细阐述了驱动该项目的科学目标，包括 FRB population 特征化、宿主星系人口统计以及将 FRB 用作宇宙探针。我们还讨论了用于减轻离子层和仪器效应的校准策略，以确保高精度定位。目前该项目有两个站点已进入科学运行状态，第三个正在 commissioning 中，CHIME/FRB Outriggers 项目正随时可能成为 FRB 领域的基石，为这一神秘天象现象提供前所未有的洞见。
引用
@article{arxiv.2504.05192,
title = {CHIME/FRB Outriggers: Design Overview},
author = {FRB Collaboration and Mandana Amiri and Bridget C. Andersen and Shion Andrew and Kevin Bandura and Mohit Bhardwaj and Kalyani Bhopi and Vadym Bidula and P. J. Boyle and Charanjot Brar and Mark Carlson and Tomas Cassanelli and Alyssa Cassity and Shami Chatterjee and Jean-François Cliche and Alice P. Curtin and Rachel Darlinger and David R. DeBoer and Matt Dobbs and Fengqiu Adam Dong and Gwendolyn Eadie and Emmanuel Fonseca and B. M. Gaensler and Nina Gusinskaia and Mark Halpern and Ian Hendricksen and Jason Hessels and Ronniy C. Joseph and Jane Kaczmarek and Victoria M. Kaspi and Kholoud Khairy and T. L. Landecker and Adam E. Lanman and Albert Wai Kit Lau and Mattias Lazda and Calvin Leung and Robert A. Main and Kiyoshi W. Masui and Ryan Mckinven and Juan Mena-Parra and Bradley W. Meyers and Daniele Michilli and Nikola Milutinovic and Kenzie Nimmo and Gavin Noble and Ayush Pandhi and Aaron B. Pearlman and Jeffrey B. Peterson and Emily Petroff and Ziggy Pleunis and Alexander W. Pollak and Masoud Rafiei-Ravandi and Andre Renard and Mawson W. Sammons and Ketan R. Sand and Pranav Sanghavi and Paul Scholz and Vishwangi Shah and Kaitlyn Shin and Seth R. Siegel and Andrew Siemion and Jonathan L. Sievers and Kendrick Smith and David Spear and Ingrid Stairs and Keith Vanderlinde and Haochen Wang and Jacob P. Willis and Tarik J. Zegmott},
journal= {arXiv preprint arXiv:2504.05192},
year = {2025}
}
备注
32 pages, 7 figures, submitted to ApJ