Institutional Repository System Of Yunnan Observatories, CAS
| Detection of emission from Cygnus Cocoon above 100TeV with LHAASO | |
Li, Cong1,2; Chen, Songzhan1,2; Wu, Sha1,2; Wang, Lingyu1,2; Yang, Ruizhi3; Liu, Ruoyu4; Cao, Zhen1,2,5; Aharonian, F.6,7; An, Q.3,8; Axikegu9; Bai, L. X.10; Bai, Y. X.1,2; Bao, Y. W.4; Bastieri, D.11; Bi, X. J.1,2,5; Bi, Y. J.1,2; Cai, H.12; Cai, J. T.11; Cao, Zhe3,8; Chang, J.13; Chang, J. F.1,2,8; Chen, B. M.14; Chen, E. S.1,2,5; Chen, J.10; Chen, Liang1,2,5,15; Chen, Long9; Chen, M. J.1,2; Chen, M. L.1,2,8; Chen, Q. H.9; Chen, S. H.1,2,5; Chen, S. Z.1,2; Chen, T. L.16; Chen, X. L.1,2,5; Chen, Y.4; Cheng, N.1,2; Cheng, Y. D.1,2; Cui, S. W.14; Cui, X. H.17; Cui, Y. D.18; D’Ettorre Piazzoli, B.19; Dai, B. Z.20; Dai, H. L.1,2,8; Dai, Z. G.3; Danzengluobu16; della Volpe, D.21; Dong, X. J.1,2; Duan, K. K.13; Fan, J. H.11; Fan, Y. Z.13; Fan, Z. X.1,2; Fang, J.20; Fang, K.1,2; Feng, C. F.22,23; Feng, L.13; Feng, S. H.1,2; Feng, Y. L.13; Gao, B.1,2; Gao, C. D.22,23; Gao, L. Q.1,2,5; Gao, Q.16; Gao, W.22,23; Ge, M. M.20; Geng, L. S.1,2; Gong, G. H.23; Gou, Q. B.1,2; Gu, M. H.1,2,8; Guo, F. L.15; Guo, J. G.1,2,5; Guo, X. L.9; Guo, Y. Q.1,2; Guo, Y. Y.1,2,5,13; Han, Y. A.24; He, H. H.1,2,5; He, H. N.13; He, J. C.1,2,5; He, S. L.11; He, X. B.18; He, Y.9; Heller, M.21; Hor, Y. K.18; Hou, C.1,2; Hu, H. B.1,2,5; Hu, S.10; Hu, S. C.1,2,5; Hu, X. J.23; Huang, D. H.9; Huang, Q. L.1,2; Huang, W. H.22,23; Huang, X. T.22,23; Huang, X. Y.13; Huang, Z. C.9; Ji, F.1,2; Ji, X. L.1,2,8; Jia, H. Y.9; Jiang, K.3,8; Jiang, Z. J.20; Jin, C.1,2,5; Ke, T.1,2; Kuleshov, D.25; Levochkin, K.25; Li, B. B.14; Li, Cheng3,8; Li, F.1,2,8; Li, H. B.1,2; Li, H. C.1,2; Li, H. Y.3,13; Li, J.1,2,8; Li, K.1,2; Li, W. L.22,23; Li, X. R.1,2; Li, Xin3,8,9; Li, Y.10; Li, Y. Z.1,2,5; Li, Zhe1,2; Li, Zhuo26; Liang, E. W.27; Liang, Y. F.27; Lin, S. J.18; Liu, B.3; Liu, C.1,2; Liu, D.22,23; Liu, H.9; Liu, H. D.24; Liu, J.1,2; Liu, J. L.28; Liu, J. S.18; Liu, J. Y.1,2; Liu, M. Y.16; Liu, R. Y.4; Liu, S. M.9; Liu, W.1,2; Liu, Y.11; Liu, Y. N.23; Liu, Z. X.10; Long, W. J.9; Lu, R.20; Lv, H. K.1,2; Ma, B. Q.26; Ma, L. L.1,2; Ma, X. H.1,2; Mao JR(毛基荣)29 ; Masood, A.9; Min, Z.1,2; Mitthumsiri, W.30; Montaruli, T.21; Nan, Y. C.22; Pang, B. Y.9; Pattarakijwanich, P.30; Pei, Z. Y.11; Qi, M. Y.1,2; Qi, Y. Q.14; Qiao, B. Q.1,2; Qin, J. J.3; Ruffolo, D.30; Rulev, V.25; Sáiz, A.30; Shao, L.14; Shchegolev, O.25,31; Sheng, X. D.1,2; Shi, J. Y.1,2; Song, H. C.26; Stenkin, Yu. V.25,31; Stepanov, V.25; Su, Y.32; Sun, Q. N.9; Sun, X. N.27; Sun, Z. B.33; Tam, P. H.18; Tang, Z. B.3,8; Tian, W. W.5,17; Wang, B. D.1,2
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| 会议录名称 | Proceedings of Science |
| 2022-03-18 | |
| 卷号 | 395 |
| DOI | 10.22323/1.395.0843 |
| 产权排序 | 第29完成单位 |
| 收录类别 | EI |
| 会议名称 | 37th International Cosmic Ray Conference, ICRC 2021 |
| 会议日期 | 2021-07-12 |
| 会议地点 | Virtual, Berlin, Germany |
| 摘要 | The origin of PeV cosmic rays in the Galaxy is a long-standing puzzle. Superbubble or massive star cluster (MSC) has been suggested as powerful cosmic-ray accelerators. Cygnus Cocoon, an extended gamma-ray source, is likely associated with the MSC Cygnus OB2. Previous observations have shown that its spectrum extends up to 100 TeV with a break around 10 TeV. The spatial coincidence between the gamma-ray emission and molecular clouds in the region implies the hadronic origin of the gamma-ray emission, supporting Cygnus cocoon as a cosmic-ray proton accelerator. However, lack of a precise measurement of the spectrum beyond 100 TeV as well as relevant morphology prevent people from concluding that it is the source of PeV cosmic rays. We here report the observation of LHAASO-KM2A on this region. The maximum significance above 25 TeV is about 21.8σ. A photo with energy up to 1.4 PeV is detected from this region, which indicates the spectrum can extend up to 1 PeV. Such a result may be considered as the evidence for cosmic ray accelerated beyond PeV in Cygnus Cocoon. © Copyright owned by the author(s). |
| 资助项目 | N/A |
| 项目资助者 | N/A |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 核科学技术 |
| 文章类型 | Conference article (CA) |
| 出版者 | Sissa Medialab Srl |
| URL | 查看原文 |
| EI入藏号 | 20230213367647 |
| EI主题词 | Cosmic rays |
| EI分类号 | 657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics - 932.1.1 Particle Accelerators |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/25737 |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.Key Laboratory of Particle Astrophyics, Experimental Physics Division, Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; 2.TIANFU Cosmic Ray Research Center, Sichuan, Chengdu, China; 3.University of Science and Technology of China, Anhui, Hefei, 230026, China; 4.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 5.University of Chinese Academy of Sciences, Beijing, 100049, China; 6.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2, Dublin, Ireland; 7.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, Heidelberg, 69029, Germany; 8.State Key Laboratory of Particle Detection and Electronics, China; 9.School of Physical Science and Technology, School of Information Science and Technology, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China; 10.College of Physics, Sichuan University, Sichuan, Chengdu, 610065, China; 11.Center for Astrophysics, Guangzhou University, Guangdong, Guangzhou, 510006, China; 12.School of Physics and Technology, Wuhan University, Hubei, Wuhan, 430072, China; 13.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 14.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 15.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China; 16.Key Laboratory of Cosmic Rays, Tibet University, Ministry of Education, Tibet, Lhasa, 850000, China; 17.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 18.School of Physics and Astronomy, School of Physics (Guangzhou), Sun Yat-Sen University, Guangdong, Zhuhai, 519000, China; 19.Dipartimento di Fisica, Università di Napoli `‘Federico II 20.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 21.D’epartement de Physique Nucl’eaire et Corpusculaire, Facult’e de Sciences, Universit’e de Gen‘eve, 24 Quai Ernest Ansermet, Geneva, 1211, Switzerland; 22.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China; 23.Department of Engineering Physics, Tsinghua University, Beijing, 100084, China; 24.School of Physics and Microelectronics, Zhengzhou University, Henan, Zhengzhou, 450001, China; 25.Institute for Nuclear Research of Russian Academy of Sciences, Moscow, 117312, Russia; 26.School of Physics, Peking University, Beijing, 100871, China; 27.School of Physical Science and Technology, Guangxi University, Guangxi, Nanning, 530004, China; 28.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China; 29.Yunnan Observatories, Chinese Academy of Sciences, Yunnan, Kunming, 650216, China; 30.Department of Physics, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; 31.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; 32.Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 33.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China |
| 推荐引用方式 GB/T 7714 | Li, Cong,Chen, Songzhan,Wu, Sha,et al. Detection of emission from Cygnus Cocoon above 100TeV with LHAASO[C]:Sissa Medialab Srl,2022. |
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| Detection of emissio（928KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | ||
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