Ultrahigh-Energy Gamma-ray Emission Associated with Black Hole-Jet Systems
Abstract
Black holes (BH), one of the most intriguing objects in the universe, can manifest themselves through electromagnetic radiation initiated by the accretion flow. Some stellar-mass BHs drive relativistic jets when accreting matter from their companion stars, forming microquasars. Non-thermal emission from the radio to tera-electronvolt (TeV) gamma-ray band has been observed from microquasars, indicating the acceleration of relativistic particles. Here we report detection of four microquasars (SS 433, V4641 Sgr, GRS 1915+105, MAXI J1820+070) of spectrum extending to the ultrahigh-energy (UHE; photon energy TeV) band and one microquasar (Cygnus X-1) of spectrum approaching 100 TeV, using the Large High Altitude Air Shower Observatory (LHAASO). Notably, the total emission associated with SS 433 cannot be interpreted with a single leptonic component. In the UHE band, its emission is in spatial coincidence with a giant atomic cloud, which is consistent with a hadronic origin. An elongated source is discovered from V4641 Sgr with the spectrum continuing up to 800 TeV. The detection of UHE gamma rays demonstrates that accreting BHs and their environments can operate as extremely efficient accelerators of particles out of 1 peta-electronvolt (PeV), suggesting microquasars to be important contributors to Galactic cosmic rays especially around the `knee' region.
Cite
@article{arxiv.2410.08988,
title = {Ultrahigh-Energy Gamma-ray Emission Associated with Black Hole-Jet Systems},
author = {The LHAASO Collaboration and Zhen Cao and Felix Aharonian and Yun-Xiang Bai and Yi-Wei Bao and Denis Bastieri and Xiao-Jun Bi and Yu-Jiang Bi and Wen-Yi Bian and Anatoly V Bukevich and Chengmiao Cai and Wen-Yu Cao and Zhe Cao and Jin Chang and Jin-Fan Chang and Aming Chen and En-Sheng Chen and Guohai Chen and Hua-Xi Chen and Liang Chen and Long Chen and Ming-Jun Chen and Ma-Li Chen and Qi-Hui Chen and Shi Chen and Su-Hong Chen and Song-Zhan Chen and Tian-Lu Chen and Xiao-Bin Chen and Xuejian Chen and Yang Chen and Ning Cheng and Yao-Dong Cheng and Ming Chung Chu and Ming-Yang Cui and Shu-Wang Cui and Xiao-Hong Cui and Yi-Dong Cui and Ben-Zhong Dai and Hong-Liang Dai and Zigao Dai and Danzeng Luobu and Yang-Xuan Diao and Xu-Qiang Dong and Kai-Kai Duan and Jun-Hui Fan and Yi-Zhong Fan and Jun Fang and Jian-Hua Fang and Kun Fang and Cun-feng Feng and Hua Feng and Li Feng and Shaohui Feng and Xiao-ting Feng and Yi Feng and You-liang Feng and Stefano Gabici and Bo Gao and Chuan-dong Gao and Qi Gao and Wei Gao and Wei-kang Gao and Maomao Ge and Ting-Ting Ge and Lisi Geng and Gwenael Giacinti and Guanghua Gong and Quanbu Gou and Min-Hao Gu and Fu-Lai Guo and Jing Guo and Xiao-Lei Guo and Yi-Qing Guo and Ying-Ying Guo and Yi-Ang Han and Otto A Hannuksela and Mariam Hasan and Hui-Hai He and Hao-Ning He and Jia-Yin He and Xinyu He and Yu He and Sergio Hernández-Cadena and Bo-Wen Hou and Chao Hou and Xian Hou and Hong-Bo Hu and Shi-Cong Hu and Chen Huang and Dai-Hui Huang and Jiajun Huang and Tian-Qi Huang and Wen-Jun Huang and Xing-Tao Huang and Xiao-Yuan Huang and Yong Huang and Yi-Yun Huang and Xiao-Lu Ji and Huan-Yu Jia and Kang Jia and Hou-Bing Jiang and Kun Jiang and Xiao-Wei Jiang and Ze-Jun Jiang and Min Jin and Samy Kaci and Ming-Ming Kang and Ivan Karpikov and Dmitry Khangulyan and Denis Kuleshov and Kirill Kurinov and Bing-Bing Li and Cheng Li and Cong Li and Dan Li and Fei Li and Haibo Li and Huicai Li and Jian Li and Jie Li and Kai Li and Long Li and Rong-Lan Li and Si-Da Li and Tian-Yang Li and Wen-Lian Li and Xiu-Rong Li and Xin Li and Yuan Li and Yizhuo Li and Zhe Li and Zhuo Li and En-Wei Liang and Yun-Feng Liang and Su-Jie Lin and Bing Liu and Cheng Liu and Dong Liu and Dang-Bo Liu and Hu Liu and Hai-Dong Liu and Jia Liu and Jia-Li Liu and Ji-Ren Liu and Mao-Yuan Liu and Ruo-Yu Liu and Si-Ming Liu and Wei Liu and X Liu and Yi Liu and Yu Liu and Yi-Nong Liu and Yu-Qing Lou and Qing Luo and Yu Luo and Hong-Kui Lv and Bo-Qiang Ma and Ling-Ling Ma and Xin-Hua Ma and Ji-Rong Mao and Zhen Min and Warit Mitthumsiri and Guo-Bin Mou and Hui-Jun Mu and Andrii Neronov and Kenny Chun Yu NG and Ming-Yang Ni and Lin Nie and Le-Jian Ou and Petchara Pattarakijwanich and Zhi-Yuan Pei and Jin-Can Qi and Meng-Yao Qi and Jia-Jun Qin and Ali Raza and Chong-Yang Ren and David Ruffolo and Alejandro Sáiz and Dmitri Semikoz and Lang Shao and Oleg Shchegolev and Yun-Zhi Shen and Xiang-Dong Sheng and Zhaodong Shi and Fu-Wen Shu and Hui-Chao Song and Yuri V Stenkin and Vladimir Stepanov and Yang Su and Dongxu Sun and Hao Sun and Qinning Sun and Xiaona Sun and Zhibin Sun and Nabeel Hussain Tabasam and Jumpei Takata and Pak Hin Thomas Tam and Hong-Bin Tan and Qingwen Tang and Ruiyi Tang and Zebo Tang and Wenwu Tian and Chaonan Tong and Li-Hong Wan and Chao Wang and Guangwei Wang and Hongguang Wang and Jiancheng Wang and Ke Wang and Kai Wang and Liping Wang and Lingyu Wang and Lu-Yao Wang and Ran Wang and Wei Wang and Xianggao Wang and Xin-Jian Wang and Xiang-Yu Wang and Yang Wang and Yu-Dong Wang and Zhong-Hai Wang and Zhong-Xiang Wang and Zheng Wang and Da-Ming Wei and Jun-Jie Wei and Yong-Jian Wei and Tao Wen and Shan-Shan Weng and Chao-Yong Wu and Han-Rong Wu and Qing-Wen Wu and Sha Wu and Xue-Feng Wu and Yu-Sheng Wu and Shao-qiang Xi and Jie Xia and Jun-Ji Xia and Guang-man Xiang and Di-xuan Xiao and Gang Xiao and Yu-liang Xin and Yi Xing and Ding-rong Xiong and Zeng Xiong and Dong-lian Xu and Reng-Feng Xu and Ren-Xin Xu and Wei-Li Xu and Liang Xue and Da-Hai Yan and Jing-Zhi Yan and Tian Yan and Chao-Wen Yang and Chu-Yuan Yang and Feng-Fan Yang and Li-Li Yang and Ming-Jie Yang and Rui-Zhi Yang and Wen-Xin Yang and Zihang Yang and Zhi-Guo Yao and Xuan-Ang Ye and Li-Qiao Yin and Na Yin and Xiao-Hao You and Zhi-Yong You and Yan-Hong Yu and Qiang Yuan and Hua Yue and Hou-Dun Zeng and Ting-Xuan Zeng and Wei Zeng and Xiangtao Zeng and Min Zha and Bin-Bin Zhang and Bing Theodore Zhang and Chao Zhang and Feng Zhang and Hong-Fei Zhang and Hai-Ming Zhang and Heng-Ying Zhang and Jian-Li Zhang and Li Zhang and Peng-Fei Zhang and Pei-Pei Zhang and Rui Zhang and Shao-Ru Zhang and Shou-Shan Zhang and Weiyan Zhang and Xiao Zhang and Xiao-Peng Zhang and Yi Zhang and Yong Zhang and Zhi-Peng Zhang and Jing Zhao and Lei Zhao and Li-Zhi Zhao and Shi-Ping Zhao and Xiao-Hong Zhao and Zihao Zhao and Fu Zheng and Wen-Juan Zhong and Bin Zhou and Hao Zhou and Jia-Neng Zhou and Meng Zhou and Ping Zhou and Rong Zhou and Xiao-Xi Zhou and Xun-Xiu Zhou and Ben-Yang Zhu and Cheng-Guang Zhu and Feng-Rong Zhu and Hui Zhu and Ke-Jun Zhu and Yuan-Chuan Zou and Xiong Zuo},
journal= {arXiv preprint arXiv:2410.08988},
year = {2026}
}
Comments
47 pages, 27 figures, 9 tables; Published in National Science Review