GECAM 同时探测事件的系统性研究
高能天体物理现象
2026-02-11 v1
摘要
GECAM 是一套旨在探测高能瞬态现象（如伽玛射线暴、软伽玛射线复辉、太阳闪变和陆地伽玛射线闪光）的硬 X 射线和伽玛射线全景监测器. 由于拥有最高的时间分辨率 (0.1 s), GECAM 能够识别在 0.3 s 窗口内几乎同时在多个探测器中留下信号的所谓同时事件 (STE). 然而, STE 的性质和来源尚未探讨. 本文首次对 GECAM 检测到的 STE 进行全面分析, 包括其形貌、能量沉积以及相对于地磁坐标的依赖性. 我们发现, 这些 STE 可能源于高能带电宇宙射线与卫星直接相互作用. 这些结果表明, GECAM 能够检测、识别和表征高能宇宙射线, 将其用作地球低轨道上的微型宇宙射线观测器 (MICRO).
引用
@article{arxiv.2602.09544,
title = {Systematic Study of the Simultaneous Events Detected by GECAM},
author = {Yang-Zhao Ren and Feng-Rong Zhu and Shao-Lin Xiong and Yan-Qiu Zhang and Chen-Wei Wang and Jia-Cong Liu and Hao-Xuan Guo and Shuo Xiao and Dong-Ya Guo and Zheng-Hua An and Ce Cai and Pei-Yi Feng and Min Gao and Ke Gong and Yue Huang and Bing Li and Xiao-Bo Li and Xin-Qiao Li and Xiao-Jing Liu and Ya-Qing Liu and Xiang Ma and Wen-Xi Peng and Rui Qiao and Li-Ming Song and Xi-Lei Sun and Wen-Jun Tan and Jin Wang and Jin-Zhou Wang and Ping Wang and Yue Wang and Xiang-Yang Wen and Sheng-Lun Xie and Wang-Chen Xue and Sheng Yang and Qi-Bin Yi and Zheng-Hang Yu and Da-Li Zhang and Fan Zhang and Hong-Mei Zhang and Jin-Peng Zhang and Peng Zhang and Shuang-Nan Zhang and Wen-Long Zhang and Zhen Zhang and Xiao-Yun Zhao and Yi Zhao and Chao Zheng and Shi-Jie Zheng},
journal= {arXiv preprint arXiv:2602.09544},
year = {2026}
}
备注
15 pages,17 figures