Very high energy gamma-ray emission beyond 10 TeV from GRB 221009A
High Energy Astrophysical Phenomena
2023-11-27 v2
Abstract
The highest energy gamma-rays from gamma-ray bursts (GRBs) have important implications for their radiation mechanism. Here we report for the first time the detection of gamma-rays up to 13 TeV from the brightest GRB 221009A by the Large High Altitude Air-shower Observatory (LHAASO). The LHAASO-KM2A detector registered more than 140 gamma-rays with energies above 3 TeV during 230900s after the trigger. The intrinsic energy spectrum of gamma-rays can be described by a power-law after correcting for extragalactic background light (EBL) absorption. Such a hard spectrum challenges the synchrotron self-Compton (SSC) scenario of relativistic electrons for the afterglow emission above several TeV. Observations of gamma-rays up to 13 TeV from a source with a measured redshift of z=0.151 hints more transparency in intergalactic space than previously expected. Alternatively, one may invoke new physics such as Lorentz Invariance Violation (LIV) or an axion origin of very high energy (VHE) signals.
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Cite
@article{arxiv.2310.08845,
title = {Very high energy gamma-ray emission beyond 10 TeV from GRB 221009A},
author = {Zhen Cao and F. Aharonian and Q. An and A. Axikegu and Y. X. Bai and Y. W. Bao and D. Bastieri and X. J. Bi and Y. J. Bi and J. T. Cai and Q. Cao and W. Y. Cao and Zhe Cao and J. Chang and J. F. Chang and A. M. Chen and E. S. Chen and Liang Chen and Lin Chen and Long Chen and M. J. Chen and M. L. Chen and Q. H. Chen and S. H. Chen and S. Z. Chen and T. L. Chen and Y. Chen and N. Cheng and Y. D. Cheng and M. Y. Cui and S. W. Cui and X. H. Cui and Y. D. Cui and B. Z. Dai and H. L. Dai and Z. G. Dai and Danzengluobu and D. della Volpe and X. Q. Dong and K. K. Duan and J. H. Fan and Y. Z. Fan and J. Fang and K. Fang and C. F. Feng and L. Feng and S. H. Feng and X. T. Feng and Y. L. Feng and S. Gabici and B. Gao and C. D. Gao and L. Q. Gao and Q. Gao and W. Gao and W. K. Gao and M. M. Ge and L. S. Geng and G. Giacinti and G. H. Gong and Q. B. Gou and M. H. Gu and F. L. Guo and X. L. Guo and Y. Q. Guo and Y. Y. Guo and Y. A. Han and H. H. He and H. N. He and J. Y. He and X. B. He and Y. He and M. Heller and Y. K. Hor and B. W. Hou and C. Hou and X. Hou and H. B. Hu and Q. Hu and S. C. Hu and D. H. Huang and T. Q. Huang and W. J. Huang and X. T. Huang and X. Y. Huang and Y. Huang and Z. C. Huang and X. L. Ji and H. Y. Jia and K. Jia and K. Jiang and X. W. Jiang and Z. J. Jiang and M. Jin and M. M. Kang and T. Ke and D. Kuleshov and K. Kurinov and B. B. Li and Cheng Li and Cong Li and D. Li and F. Li and H. B. Li and H. C. Li and H. Y. Li and J. Li and Jian Li and Jie Li and K. Li and W. L. Li and W. L. Li and X. R. Li and Xin Li and Y. Z. Li and Zhe Li and Zhuo Li and E. W. Liang and Y. F. Liang and S. J. Lin and B. Liu and C. Liu and D. Liu and H. Liu and H. D. Liu and J. Liu and J. L. Liu and J. Y. Liu and M. Y. Liu and R. Y. Liu and S. M. Liu and W. Liu and Y. Liu and Y. N. Liu and R. Lu and Q. Luo and H. K. Lv and B. Q. Ma and L. L. Ma and X. H. Ma and J. R. Mao and Z. Min and W. Mitthumsiri and H. J. Mu and Y. C. Nan and A. Neronov and Z. W. Ou and B. Y. Pang and P. Pattarakijwanich and Z. Y. Pei and M. Y. Qi and Y. Q. Qi and B. Q. Qiao and J. J. Qin and D. Ruffolo and A. Sáiz and D. Semikoz and C. Y. Shao and L. Shao and O. Shchegolev and X. D. Sheng and F. W. Shu and H. C. Song and Yu. V. Stenkin and V. Stepanov and Y. Su and Q. N. Sun and X. N. Sun and Z. B. Sun and P. H. T. Tam and Q. W. Tang and Z. B. Tang and W. W. Tian and C. Wang and C. B. Wang and G. W. Wang and H. G. Wang and H. H. Wang and J. C. Wang and K. Wang and L. P. Wang and L. Y. Wang and P. H. Wang and R. Wang and W. Wang and X. G. Wang and X. Y. Wang and Y. Wang and Y. D. Wang and Y. J. Wang and Z. H. Wang and Z. X. Wang and Zhen Wang and Zheng Wang and D. M. Wei and J. J. Wei and Y. J. Wei and T. Wen and C. Y. Wu and H. R. Wu and S. Wu and X. F. Wu and Y. S. Wu and S. Q. Xi and J. Xia and J. J. Xia and G. M. Xiang and D. X. Xiao and G. Xiao and G. G. Xin and Y. L. Xin and Y. Xing and Z. Xiong and D. L. Xu and R. F. Xu and R. X. Xu and W. L. Xu and L. Xue and D. H. Yan and J. Z. Yan and T. Yan and C. W. Yang and F. Yang and F. F. Yang and H. W. Yang and J. Y. Yang and L. L. Yang and M. J. Yang and R. Z. Yang and S. B. Yang and Y. H. Yao and Z. G. Yao and Y. M. Ye and L. Q. Yin and N. Yin and X. H. You and Z. Y. You and Y. H. Yu and Q. Yuan and H. Yue and H. D. Zeng and T. X. Zeng and W. Zeng and M. Zha and B. B. Zhang and F. Zhang and H. M. Zhang and H. Y. Zhang and J. L. Zhang and L. X. Zhang and Li Zhang and P. F. Zhang and P. P. Zhang and R. Zhang and S. B. Zhang and S. R. Zhang and S. S. Zhang and X. Zhang and X. P. Zhang and Y. F. Zhang and Yi Zhang and Yong Zhang and B. Zhao and J. Zhao and L. Zhao and L. Z. Zhao and S. P. Zhao and F. Zheng and B. Zhou and H. Zhou and J. N. Zhou and M. Zhou and P. Zhou and R. Zhou and X. X. Zhou and C. G. Zhu and F. R. Zhu and H. Zhu and K. J. Zhu and X. Zuo},
journal= {arXiv preprint arXiv:2310.08845},
year = {2023}
}
Comments
49pages, 11figures