Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM), consisting of two micro-satellites, is designed to detect gamma-ray bursts associated with gravitational-wave events. Here, we introduce the real-time burst alert system of GECAM, with the adoption of the BeiDou-3 short message communication service. We present the post-trigger operations, the detailed ground-based analysis, and the performance of the system. In the first year of the in-flight operation, GECAM was triggered by 42 GRBs. GECAM real-time burst alert system has the ability to distribute the alert within ∼1 minute after being triggered, which enables timely follow-up observations.
@article{arxiv.2307.04999,
title = {The GECAM Real-Time Burst Alert System},
author = {Yue Huang and Dongli Shi and Xiaolu Zhang and Xiang Ma and Peng Zhang and Shijie Zheng and Liming Song and Xiaoyun Zhao and Wei Chen and Rui Qiao and Xinying Song and Jin Wang and Ce Cai and Shuo Xiao and Yanqiu Zhang and Shaolin Xiong},
journal= {arXiv preprint arXiv:2307.04999},
year = {2023}
}
Comments
17 pages, 10 figures; Accepted for publication in RAA