Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT. Ma, X., Tao, L., Zhang, S., Zhang, L., Bu, Q., Ge, M., Chen, Y., Qu, J., Zhang, S., Lu, F., Song, L., Yang, Y., Yuan, F., Cai, C., Cao, X., Chang, Z., Chen, G., Chen, L., Chen, T., Chen, Y., Chen, Y., Cui, W., Cui, W., Deng, J., Dong, Y., Du, Y., Fu, M., Gao, G., Gao, H., Gao, M., Gu, Y., Guan, J., Guo, C., Han, D., Huang, Y., Huo, J., Ji, L., Jia, S., Jiang, L., Jiang, W., Jin, J., Jin, Y., Kong, L., Li, B., Li, C., Li, G., Li, M., Li, T., Li, W., Li, X., Li, X., Li, X., Li, Y., Li, Z., Liang, X., Liao, J., Liu, B., Liu, C., Liu, G., Liu, H., Liu, X., Liu, Y., Lu, B., Lu, X., Luo, Q., Luo, T., Meng, B., Nang, Y., Nie, J., Ou, G., Sai, N., Shang, R., Song, X., Sun, L., Tan, Y., Tuo, Y., Wang, C., Wang, G., Wang, J., Wang, L., Wang, W., Wang, Y., Wen, X., Wu, B., Wu, B., Wu, M., Xiao, G., Xiao, S., Xie, F., Xiong, S., Xu, H., Xu, Y., Yang, J., Yang, S., Yang, Y., Yi, Q., Yin, Q., You, Y., Zhang, A., Zhang, C., Zhang, F., Zhang, H., Zhang, J., Zhang, T., Zhang, W., Zhang, W., Zhang, W., Zhang, Y., Zhang, Y., Zhang, Y., Zhang, Y., Zhang, Z., Zhang, Z., Zhang, Z., Zhao, H., Zhao, X., Zheng, S., Zhou, D., Zhou, J., Zhu, Y., Zhu, Y., & Zhuang, R. Nature Astronomy, 5:94–102, January, 2021. ADS Bibcode: 2021NatAs...5...94M![Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray binaries, and their origin is still under debate. The properties of LFQPOs at high energies (above 30 keV) are closely related to the nature of the accretion flow in the innermost regions, and thus play a crucial role in critically testing various theoretical models. The Hard X-ray Modulation Telescope is capable of detecting emissions above 30 keV, and is therefore an ideal instrument to do so. Here we report the discovery of LFQPOs above 200 keV in the new black hole MAXI J1820+070 in the X-ray hard state, which allows us to understand the behaviours of LFQPOs at hundreds of kiloelectronvolts. The phase lag of the LFQPO is constant around zero below 30 keV, and becomes a soft lag (that is, the high-energy photons arrive first) above 30 keV. The soft lag gradually increases with energy and reaches ~0.9 s in the 150-200 keV band. The detection at energies above 200 keV, the large soft lag and the energy-related behaviours of the LFQPO pose a great challenge for most existing models, but suggest that the LFQPO probably originates from the precession of a small-scale jet.
@article{maDiscoveryOscillations2002021,
title = {Discovery of oscillations above 200 {keV} in a black hole {X}-ray binary with {Insight}-{HXMT}},
volume = {5},
issn = {2397-3366},
url = {https://ui.adsabs.harvard.edu/abs/2021NatAs...5...94M},
doi = {10.1038/s41550-020-1192-2},
abstract = {Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray binaries, and their origin is still under debate. The properties of LFQPOs at high energies (above 30 keV) are closely related to the nature of the accretion flow in the innermost regions, and thus play a crucial role in critically testing various theoretical models. The Hard X-ray Modulation Telescope is capable of detecting emissions above 30 keV, and is therefore an ideal instrument to do so. Here we report the discovery of LFQPOs above 200 keV in the new black hole MAXI J1820+070 in the X-ray hard state, which allows us to understand the behaviours of LFQPOs at hundreds of kiloelectronvolts. The phase lag of the LFQPO is constant around zero below 30 keV, and becomes a soft lag (that is, the high-energy photons arrive first) above 30 keV. The soft lag gradually increases with energy and reaches {\textasciitilde}0.9 s in the 150-200 keV band. The detection at energies above 200 keV, the large soft lag and the energy-related behaviours of the LFQPO pose a great challenge for most existing models, but suggest that the LFQPO probably originates from the precession of a small-scale jet.},
urldate = {2023-02-07},
journal = {Nature Astronomy},
author = {Ma, Xiang and Tao, Lian and Zhang, Shuang-Nan and Zhang, Liang and Bu, Qing-Cui and Ge, Ming-Yu and Chen, Yu-Peng and Qu, Jin-Lu and Zhang, Shu and Lu, Fang-Jun and Song, Li-Ming and Yang, Yi-Jung and Yuan, Feng and Cai, Ce and Cao, Xue-Lei and Chang, Zhi and Chen, Gang and Chen, Li and Chen, Tian-Xiang and Chen, Yi-Bao and Chen, Yong and Cui, Wei and Cui, Wei-Wei and Deng, Jing-Kang and Dong, Yong-Wei and Du, Yuan-Yuan and Fu, Min-Xue and Gao, Guan-Hua and Gao, He and Gao, Min and Gu, Yu-Dong and Guan, Ju and Guo, Cheng-Cheng and Han, Da-Wei and Huang, Yue and Huo, Jia and Ji, Long and Jia, Shu-Mei and Jiang, Lu-Hua and Jiang, Wei-Chun and Jin, Jing and Jin, Yong-Jie and Kong, Ling-Da and Li, Bing and Li, Cheng-Kui and Li, Gang and Li, Mao-Shun and Li, Ti-Pei and Li, Wei and Li, Xian and Li, Xiao-Bo and Li, Xu-Fang and Li, Yan-Guo and Li, Zheng-Wei and Liang, Xiao-Hua and Liao, Jin-Yuan and Liu, Bai-Sheng and Liu, Cong-Zhan and Liu, Guo-Qing and Liu, Hong-Wei and Liu, Xiao-Jing and Liu, Yi-Nong and Lu, Bo and Lu, Xue-Feng and Luo, Qi and Luo, Tao and Meng, Bin and Nang, Yi and Nie, Jian-Yin and Ou, Ge and Sai, Na and Shang, Ren-Cheng and Song, Xin-Ying and Sun, Liang and Tan, Ying and Tuo, Yuo-Li and Wang, Chen and Wang, Guo-Feng and Wang, Juan and Wang, Ling-Jun and Wang, Wen-Shuai and Wang, Yu-Sa and Wen, Xiang-Yang and Wu, Bai-Yang and Wu, Bo-Bing and Wu, Mei and Xiao, Guang-Cheng and Xiao, Shuo and Xie, Fu-Guo and Xiong, Shao-Lin and Xu, He and Xu, Yu-Peng and Yang, Jia-Wei and Yang, Sheng and Yang, Yan-Ji and Yi, Qi-Bin and Yin, Qian-Qing and You, Yuan and Zhang, Ai-Mei and Zhang, Cheng-Mo and Zhang, Fan and Zhang, Hong-Mei and Zhang, Juan and Zhang, Tong and Zhang, Wan-Chang and Zhang, Wei and Zhang, Wen-Zhao and Zhang, Yi and Zhang, Yi-Fei and Zhang, Yong-Jie and Zhang, Yue and Zhang, Zhao and Zhang, Zhi and Zhang, Zi-Liang and Zhao, Hai-Sheng and Zhao, Xiao-Fan and Zheng, Shi-Jie and Zhou, Deng-Ke and Zhou, Jian-Feng and Zhu, Yu-Xuan and Zhu, Yue and Zhuang, Ren-Lin},
month = jan,
year = {2021},
note = {ADS Bibcode: 2021NatAs...5...94M},
keywords = {Astrophysics - High Energy Astrophysical Phenomena},
pages = {94--102},
}
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{"_id":"Cw34ePXMih2o6mYhz","bibbaseid":"ma-tao-zhang-zhang-bu-ge-chen-qu-etal-discoveryofoscillationsabove200kevinablackholexraybinarywithinsighthxmt-2021","author_short":["Ma, X.","Tao, L.","Zhang, S.","Zhang, L.","Bu, Q.","Ge, M.","Chen, Y.","Qu, J.","Zhang, S.","Lu, F.","Song, L.","Yang, Y.","Yuan, F.","Cai, C.","Cao, X.","Chang, Z.","Chen, G.","Chen, L.","Chen, T.","Chen, Y.","Chen, Y.","Cui, W.","Cui, W.","Deng, J.","Dong, Y.","Du, Y.","Fu, M.","Gao, G.","Gao, H.","Gao, M.","Gu, Y.","Guan, J.","Guo, C.","Han, D.","Huang, Y.","Huo, J.","Ji, L.","Jia, S.","Jiang, L.","Jiang, W.","Jin, J.","Jin, Y.","Kong, L.","Li, B.","Li, C.","Li, G.","Li, M.","Li, T.","Li, W.","Li, X.","Li, X.","Li, X.","Li, Y.","Li, Z.","Liang, X.","Liao, J.","Liu, B.","Liu, C.","Liu, G.","Liu, H.","Liu, X.","Liu, Y.","Lu, B.","Lu, X.","Luo, Q.","Luo, T.","Meng, B.","Nang, Y.","Nie, J.","Ou, G.","Sai, N.","Shang, R.","Song, X.","Sun, L.","Tan, Y.","Tuo, Y.","Wang, C.","Wang, G.","Wang, J.","Wang, L.","Wang, W.","Wang, Y.","Wen, X.","Wu, B.","Wu, B.","Wu, M.","Xiao, G.","Xiao, S.","Xie, F.","Xiong, S.","Xu, H.","Xu, Y.","Yang, J.","Yang, S.","Yang, Y.","Yi, Q.","Yin, Q.","You, Y.","Zhang, A.","Zhang, C.","Zhang, F.","Zhang, H.","Zhang, J.","Zhang, T.","Zhang, W.","Zhang, W.","Zhang, W.","Zhang, Y.","Zhang, Y.","Zhang, Y.","Zhang, Y.","Zhang, Z.","Zhang, Z.","Zhang, Z.","Zhao, H.","Zhao, X.","Zheng, S.","Zhou, D.","Zhou, J.","Zhu, Y.","Zhu, Y.","Zhuang, R."],"bibdata":{"bibtype":"article","type":"article","title":"Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT","volume":"5","issn":"2397-3366","url":"https://ui.adsabs.harvard.edu/abs/2021NatAs...5...94M","doi":"10.1038/s41550-020-1192-2","abstract":"Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray binaries, and their origin is still under debate. The properties of LFQPOs at high energies (above 30 keV) are closely related to the nature of the accretion flow in the innermost regions, and thus play a crucial role in critically testing various theoretical models. The Hard X-ray Modulation Telescope is capable of detecting emissions above 30 keV, and is therefore an ideal instrument to do so. Here we report the discovery of LFQPOs above 200 keV in the new black hole MAXI J1820+070 in the X-ray hard state, which allows us to understand the behaviours of LFQPOs at hundreds of kiloelectronvolts. The phase lag of the LFQPO is constant around zero below 30 keV, and becomes a soft lag (that is, the high-energy photons arrive first) above 30 keV. The soft lag gradually increases with energy and reaches ~0.9 s in the 150-200 keV band. The detection at energies above 200 keV, the large soft lag and the energy-related behaviours of the LFQPO pose a great challenge for most existing models, but suggest that the LFQPO probably originates from the precession of a small-scale jet.","urldate":"2023-02-07","journal":"Nature 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Bibcode: 2021NatAs...5...94M","keywords":"Astrophysics - High Energy Astrophysical Phenomena","pages":"94–102","bibtex":"@article{maDiscoveryOscillations2002021,\n\ttitle = {Discovery of oscillations above 200 {keV} in a black hole {X}-ray binary with {Insight}-{HXMT}},\n\tvolume = {5},\n\tissn = {2397-3366},\n\turl = {https://ui.adsabs.harvard.edu/abs/2021NatAs...5...94M},\n\tdoi = {10.1038/s41550-020-1192-2},\n\tabstract = {Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray binaries, and their origin is still under debate. The properties of LFQPOs at high energies (above 30 keV) are closely related to the nature of the accretion flow in the innermost regions, and thus play a crucial role in critically testing various theoretical models. The Hard X-ray Modulation Telescope is capable of detecting emissions above 30 keV, and is therefore an ideal instrument to do so. Here we report the discovery of LFQPOs above 200 keV in the new black hole MAXI J1820+070 in the X-ray hard state, which allows us to understand the behaviours of LFQPOs at hundreds of kiloelectronvolts. The phase lag of the LFQPO is constant around zero below 30 keV, and becomes a soft lag (that is, the high-energy photons arrive first) above 30 keV. The soft lag gradually increases with energy and reaches {\\textasciitilde}0.9 s in the 150-200 keV band. The detection at energies above 200 keV, the large soft lag and the energy-related behaviours of the LFQPO pose a great challenge for most existing models, but suggest that the LFQPO probably originates from the precession of a small-scale jet.},\n\turldate = {2023-02-07},\n\tjournal = {Nature Astronomy},\n\tauthor = {Ma, Xiang and Tao, Lian and Zhang, Shuang-Nan and Zhang, Liang and Bu, Qing-Cui and Ge, Ming-Yu and Chen, Yu-Peng and Qu, Jin-Lu and Zhang, Shu and Lu, Fang-Jun and Song, Li-Ming and Yang, Yi-Jung and Yuan, Feng and Cai, Ce and Cao, Xue-Lei and Chang, Zhi and Chen, Gang and Chen, Li and Chen, Tian-Xiang and Chen, Yi-Bao and Chen, Yong and Cui, Wei and Cui, Wei-Wei and Deng, Jing-Kang and Dong, Yong-Wei and Du, Yuan-Yuan and Fu, Min-Xue and Gao, Guan-Hua and Gao, He and Gao, Min and Gu, Yu-Dong and Guan, Ju and Guo, Cheng-Cheng and Han, Da-Wei and Huang, Yue and Huo, Jia and Ji, Long and Jia, Shu-Mei and Jiang, Lu-Hua and Jiang, Wei-Chun and Jin, Jing and Jin, Yong-Jie and Kong, Ling-Da and Li, Bing and Li, Cheng-Kui and Li, Gang and Li, Mao-Shun and Li, Ti-Pei and Li, Wei and Li, Xian and Li, Xiao-Bo and Li, Xu-Fang and Li, Yan-Guo and Li, Zheng-Wei and Liang, Xiao-Hua and Liao, Jin-Yuan and Liu, Bai-Sheng and Liu, Cong-Zhan and Liu, Guo-Qing and Liu, Hong-Wei and Liu, Xiao-Jing and Liu, Yi-Nong and Lu, Bo and Lu, Xue-Feng and Luo, Qi and Luo, Tao and Meng, Bin and Nang, Yi and Nie, Jian-Yin and Ou, Ge and Sai, Na and Shang, Ren-Cheng and Song, Xin-Ying and Sun, Liang and Tan, Ying and Tuo, Yuo-Li and Wang, Chen and Wang, Guo-Feng and Wang, Juan and Wang, Ling-Jun and Wang, Wen-Shuai and Wang, Yu-Sa and Wen, Xiang-Yang and Wu, Bai-Yang and Wu, Bo-Bing and Wu, Mei and Xiao, Guang-Cheng and Xiao, Shuo and Xie, Fu-Guo and Xiong, Shao-Lin and Xu, He and Xu, Yu-Peng and Yang, Jia-Wei and Yang, Sheng and Yang, Yan-Ji and Yi, Qi-Bin and Yin, Qian-Qing and You, Yuan and Zhang, Ai-Mei and Zhang, Cheng-Mo and Zhang, Fan and Zhang, Hong-Mei and Zhang, Juan and Zhang, Tong and Zhang, Wan-Chang and Zhang, Wei and Zhang, Wen-Zhao and Zhang, Yi and Zhang, Yi-Fei and Zhang, Yong-Jie and Zhang, Yue and Zhang, Zhao and Zhang, Zhi and Zhang, Zi-Liang and Zhao, Hai-Sheng and Zhao, Xiao-Fan and Zheng, Shi-Jie and Zhou, Deng-Ke and Zhou, Jian-Feng and Zhu, Yu-Xuan and Zhu, Yue and Zhuang, Ren-Lin},\n\tmonth = jan,\n\tyear = {2021},\n\tnote = {ADS Bibcode: 2021NatAs...5...94M},\n\tkeywords = {Astrophysics - High Energy Astrophysical Phenomena},\n\tpages = {94--102},\n}\n\n","author_short":["Ma, X.","Tao, L.","Zhang, S.","Zhang, L.","Bu, Q.","Ge, M.","Chen, Y.","Qu, J.","Zhang, S.","Lu, F.","Song, L.","Yang, Y.","Yuan, F.","Cai, C.","Cao, X.","Chang, Z.","Chen, G.","Chen, L.","Chen, T.","Chen, Y.","Chen, Y.","Cui, W.","Cui, W.","Deng, J.","Dong, Y.","Du, Y.","Fu, M.","Gao, G.","Gao, H.","Gao, M.","Gu, Y.","Guan, J.","Guo, C.","Han, D.","Huang, Y.","Huo, J.","Ji, L.","Jia, S.","Jiang, L.","Jiang, W.","Jin, J.","Jin, Y.","Kong, L.","Li, B.","Li, C.","Li, G.","Li, M.","Li, T.","Li, W.","Li, X.","Li, X.","Li, X.","Li, Y.","Li, Z.","Liang, X.","Liao, J.","Liu, B.","Liu, C.","Liu, G.","Liu, H.","Liu, X.","Liu, Y.","Lu, B.","Lu, X.","Luo, Q.","Luo, T.","Meng, B.","Nang, Y.","Nie, J.","Ou, G.","Sai, N.","Shang, R.","Song, X.","Sun, L.","Tan, Y.","Tuo, Y.","Wang, C.","Wang, G.","Wang, J.","Wang, L.","Wang, W.","Wang, Y.","Wen, X.","Wu, B.","Wu, B.","Wu, M.","Xiao, G.","Xiao, S.","Xie, F.","Xiong, S.","Xu, H.","Xu, Y.","Yang, J.","Yang, S.","Yang, Y.","Yi, Q.","Yin, Q.","You, Y.","Zhang, A.","Zhang, C.","Zhang, F.","Zhang, H.","Zhang, J.","Zhang, T.","Zhang, W.","Zhang, W.","Zhang, W.","Zhang, Y.","Zhang, Y.","Zhang, Y.","Zhang, Y.","Zhang, Z.","Zhang, Z.","Zhang, Z.","Zhao, H.","Zhao, X.","Zheng, S.","Zhou, D.","Zhou, J.","Zhu, Y.","Zhu, Y.","Zhuang, R."],"key":"maDiscoveryOscillations2002021","id":"maDiscoveryOscillations2002021","bibbaseid":"ma-tao-zhang-zhang-bu-ge-chen-qu-etal-discoveryofoscillationsabove200kevinablackholexraybinarywithinsighthxmt-2021","role":"author","urls":{"Paper":"https://ui.adsabs.harvard.edu/abs/2021NatAs...5...94M"},"keyword":["Astrophysics - High Energy Astrophysical Phenomena"],"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero/valepeirano","dataSources":["ftqMNtyNjLWewoxW9"],"keywords":["astrophysics - high energy astrophysical phenomena"],"search_terms":["discovery","oscillations","above","200","kev","black","hole","ray","binary","insight","hxmt","ma","tao","zhang","zhang","bu","ge","chen","qu","zhang","lu","song","yang","yuan","cai","cao","chang","chen","chen","chen","chen","chen","cui","cui","deng","dong","du","fu","gao","gao","gao","gu","guan","guo","han","huang","huo","ji","jia","jiang","jiang","jin","jin","kong","li","li","li","li","li","li","li","li","li","li","li","liang","liao","liu","liu","liu","liu","liu","liu","lu","lu","luo","luo","meng","nang","nie","ou","sai","shang","song","sun","tan","tuo","wang","wang","wang","wang","wang","wang","wen","wu","wu","wu","xiao","xiao","xie","xiong","xu","xu","yang","yang","yang","yi","yin","you","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhang","zhao","zhao","zheng","zhou","zhou","zhu","zhu","zhuang"],"title":"Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT","year":2021}