Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070

Bei You, Yuoli Tuo, Chengzhe Li, Wei Wang (), Shuang-Nan Zhang (), Shu Zhang, Mingyu Ge, Chong Luo, Bifang Liu, Weimin Yuan, Zigao Dai, Jifeng Liu, Erlin Qiao, Chichuan Jin, Zhu Liu, Bozena Czerny, Qingwen Wu, Qingcui Bu, Ce Cai, Xuelei Cao, Zhi Chang, Gang Chen, Li Chen, Tianxiang Chen, Yibao Chen, Yong Chen, Yupeng Chen, Wei Cui, Weiwei Cui, Jingkang Deng, Yongwei Dong, Yuanyuan Du, Minxue Fu, Guanhua Gao, He Gao, Min Gao, Yudong Gu, Ju Guan, Chengcheng Guo, Dawei Han, Yue Huang, Jia Huo, Shumei Jia, Luhua Jiang, Weichun Jiang, Jing Jin, Yongjie Jin, Lingda Kong, Bing Li, Chengkui Li, Gang Li, Maoshun Li, Tipei Li, Wei Li, Xian Li, Xiaobo Li, Xufang Li, Yanguo Li, Zhengwei Li, Xiaohua Liang, Jinyuan Liao, Congzhan Liu, Guoqing Liu, Hongwei Liu, Xiaojing Liu, Yinong Liu, Bo Lu, Fangjun Lu, Xuefeng Lu, Qi Luo, Tao Luo, Xiang Ma, Bin Meng, Yi Nang, Jianyin Nie, Ge Ou, Jinlu Qu, Na Sai, Rencheng Shang, Liming Song, Xinying Song, Liang Sun, Ying Tan, Lian Tao, Chen Wang, Guofeng Wang, Juan Wang, Lingjun Wang, Wenshuai Wang, Yusa Wang, Xiangyang Wen, Baiyang Wu, Bobing Wu, Mei Wu, Guangcheng Xiao, Shuo Xiao, Shaolin Xiong, Yupeng Xu, Jiawei Yang, Sheng Yang, Yanji Yang, Qibin Yi, Qianqing Yin, Yuan You, Aimei Zhang, Chengmo Zhang, Fan Zhang, Hongmei Zhang, Juan Zhang, Tong Zhang, Wanchang Zhang, Wei Zhang, Wenzhao Zhang, Yi Zhang, Yifei Zhang, Yongjie Zhang, Yue Zhang, Zhao Zhang, Ziliang Zhang, Haisheng Zhao, Xiaofan Zhao, Shijie Zheng, Dengke Zhou, Jianfeng Zhou, Yuxuan Zhu and Yue Zhu
Additional contact information
Bei You: School of Physics and Technology, Wuhan University
Yuoli Tuo: Chinese Academy of Sciences
Chengzhe Li: School of Physics and Technology, Wuhan University
Wei Wang: School of Physics and Technology, Wuhan University
Shuang-Nan Zhang: Chinese Academy of Sciences
Shu Zhang: Chinese Academy of Sciences
Mingyu Ge: Chinese Academy of Sciences
Chong Luo: School of Physics and Technology, Wuhan University
Bifang Liu: Key Laboratory of Space Astronomy and Technology, Chinese Academy of Sciences
Weimin Yuan: Key Laboratory of Space Astronomy and Technology, Chinese Academy of Sciences
Zigao Dai: School of Astronomy and Space Science, Nanjing University
Jifeng Liu: School of Astronomy and Space Sciences, University of Chinese Academy of Sciences
Erlin Qiao: Key Laboratory of Space Astronomy and Technology, Chinese Academy of Sciences
Chichuan Jin: Key Laboratory of Space Astronomy and Technology, Chinese Academy of Sciences
Zhu Liu: Key Laboratory of Space Astronomy and Technology, Chinese Academy of Sciences
Bozena Czerny: Center for Theoretical Physics, Polish Academy of Sciences
Qingwen Wu: School of Physics, Huazhong University of Science and Technology
Qingcui Bu: Chinese Academy of Sciences
Ce Cai: Chinese Academy of Sciences
Xuelei Cao: Chinese Academy of Sciences
Zhi Chang: Chinese Academy of Sciences
Gang Chen: Chinese Academy of Sciences
Li Chen: Beijing Normal University
Tianxiang Chen: Chinese Academy of Sciences
Yibao Chen: Tsinghua University
Yong Chen: Chinese Academy of Sciences
Yupeng Chen: Chinese Academy of Sciences
Wei Cui: Tsinghua University
Weiwei Cui: Chinese Academy of Sciences
Jingkang Deng: Tsinghua University
Yongwei Dong: Chinese Academy of Sciences
Yuanyuan Du: Chinese Academy of Sciences
Minxue Fu: Tsinghua University
Guanhua Gao: Chinese Academy of Sciences
He Gao: Chinese Academy of Sciences
Min Gao: Chinese Academy of Sciences
Yudong Gu: Chinese Academy of Sciences
Ju Guan: Chinese Academy of Sciences
Chengcheng Guo: Chinese Academy of Sciences
Dawei Han: Chinese Academy of Sciences
Yue Huang: Chinese Academy of Sciences
Jia Huo: Chinese Academy of Sciences
Shumei Jia: Chinese Academy of Sciences
Luhua Jiang: Chinese Academy of Sciences
Weichun Jiang: Chinese Academy of Sciences
Jing Jin: Chinese Academy of Sciences
Yongjie Jin: Tsinghua University
Lingda Kong: Chinese Academy of Sciences
Bing Li: Chinese Academy of Sciences
Chengkui Li: Chinese Academy of Sciences
Gang Li: Chinese Academy of Sciences
Maoshun Li: Chinese Academy of Sciences
Tipei Li: Chinese Academy of Sciences
Wei Li: Chinese Academy of Sciences
Xian Li: Chinese Academy of Sciences
Xiaobo Li: Chinese Academy of Sciences
Xufang Li: Chinese Academy of Sciences
Yanguo Li: Chinese Academy of Sciences
Zhengwei Li: Chinese Academy of Sciences
Xiaohua Liang: Chinese Academy of Sciences
Jinyuan Liao: Chinese Academy of Sciences
Congzhan Liu: Chinese Academy of Sciences
Guoqing Liu: Tsinghua University
Hongwei Liu: Chinese Academy of Sciences
Xiaojing Liu: Chinese Academy of Sciences
Yinong Liu: Tsinghua University
Bo Lu: Chinese Academy of Sciences
Fangjun Lu: Chinese Academy of Sciences
Xuefeng Lu: Chinese Academy of Sciences
Qi Luo: Chinese Academy of Sciences
Tao Luo: Chinese Academy of Sciences
Xiang Ma: Chinese Academy of Sciences
Bin Meng: Chinese Academy of Sciences
Yi Nang: Chinese Academy of Sciences
Jianyin Nie: Chinese Academy of Sciences
Ge Ou: Institute of High Energy Physics, Chinese Academy of Sciences
Jinlu Qu: Chinese Academy of Sciences
Na Sai: Chinese Academy of Sciences
Rencheng Shang: Tsinghua University
Liming Song: Chinese Academy of Sciences
Xinying Song: Chinese Academy of Sciences
Liang Sun: Chinese Academy of Sciences
Ying Tan: Chinese Academy of Sciences
Lian Tao: Chinese Academy of Sciences
Chen Wang: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Guofeng Wang: Chinese Academy of Sciences
Juan Wang: Chinese Academy of Sciences
Lingjun Wang: Chinese Academy of Sciences
Wenshuai Wang: Institute of High Energy Physics, Chinese Academy of Sciences
Yusa Wang: Chinese Academy of Sciences
Xiangyang Wen: Chinese Academy of Sciences
Baiyang Wu: Chinese Academy of Sciences
Bobing Wu: Chinese Academy of Sciences
Mei Wu: Chinese Academy of Sciences
Guangcheng Xiao: Chinese Academy of Sciences
Shuo Xiao: Chinese Academy of Sciences
Shaolin Xiong: Chinese Academy of Sciences
Yupeng Xu: Chinese Academy of Sciences
Jiawei Yang: Chinese Academy of Sciences
Sheng Yang: Chinese Academy of Sciences
Yanji Yang: Chinese Academy of Sciences
Qibin Yi: Chinese Academy of Sciences
Qianqing Yin: Chinese Academy of Sciences
Yuan You: Chinese Academy of Sciences
Aimei Zhang: Chinese Academy of Sciences
Chengmo Zhang: Chinese Academy of Sciences
Fan Zhang: Chinese Academy of Sciences
Hongmei Zhang: Xiangtan University
Juan Zhang: Chinese Academy of Sciences
Tong Zhang: Chinese Academy of Sciences
Wanchang Zhang: Chinese Academy of Sciences
Wei Zhang: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Wenzhao Zhang: Beijing Normal University
Yi Zhang: Chinese Academy of Sciences
Yifei Zhang: Chinese Academy of Sciences
Yongjie Zhang: Chinese Academy of Sciences
Yue Zhang: Chinese Academy of Sciences
Zhao Zhang: Tsinghua University
Ziliang Zhang: Chinese Academy of Sciences
Haisheng Zhao: Chinese Academy of Sciences
Xiaofan Zhao: Chinese Academy of Sciences
Shijie Zheng: Chinese Academy of Sciences
Dengke Zhou: Chinese Academy of Sciences
Jianfeng Zhou: Tsinghua University
Yuxuan Zhu: Chinese Academy of Sciences
Yue Zhu: Chinese Academy of Sciences

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract A black hole X-ray binary produces hard X-ray radiation from its corona and disk when the accreting matter heats up. During an outburst, the disk and corona co-evolves with each other. However, such an evolution is still unclear in both its geometry and dynamics. Here we report the unusual decrease of the reflection fraction in MAXI J1820+070, which is the ratio of the coronal intensity illuminating the disk to the coronal intensity reaching the observer, as the corona is observed to contrast during the decay phase. We postulate a jet-like corona model, in which the corona can be understood as a standing shock where the material flowing through. In this dynamical scenario, the decrease of the reflection fraction is a signature of the corona’s bulk velocity. Our findings suggest that as the corona is observed to get closer to the black hole, the coronal material might be outflowing faster.

Date: 2021
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DOI: 10.1038/s41467-021-21169-5

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