The GECAM Real-time Burst Alert System  

作　　者：Yue Huang Dongli Shi Xiaolu Zhang Xiang Ma Peng Zhang Shijie Zheng Liming Song Xiaoyun Zhao Wei Chen Rui Qiao Xinying Song Jin Wang Ce Cai Shuo Xiao Yanqiu Zhang Shaolin Xiong 

机构地区：[1]Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [2]Southwest Jiaotong University,Chengdu 611756,China [3]Qufu Normal University,Qufu 273165,China [4]College of Electronic and Information Engineering,Tongji University,Shanghai 201804,China [5]College of Physics and Hebei Key Laboratory of Photophysics Research and Application,Hebei Normal University,Shijiazhuang 050024,China [6]Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing,Guizhou Normal University,Guiyang 550001,China [7]University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Research in Astronomy and Astrophysics》2024年第10期36-47,共12页天文和天体物理学研究（英文版）

基　　金：supported by the National Key R&D Program of China(2021YFA0718500,2022YFF0711404);the Strategic Priority Research Program on Space Science,the Chinese Academy of Sciences(grant Nos.XDA15360300,XDA15052700 and E02212A02S);the National Natural Science Foundation of China(grant Nos.U2031205,12133007);supported by the Strategic Priority Research Program on Space Science,the Chinese Academy of Sciences,grant No.XDA15360000。

摘　　要：Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM),consisting of two microsatellites,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 gamma-ray bursts.The 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.

关 键 词：(stars:)gamma-ray burst:general gravitational waves methods:data analysis 

分 类 号：P142.84[天文地球—天体物理] V447.1[天文地球—天文学]