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Measurement of very-high-energy diffuse gamma-ray emission from |b|<5◦ of the Galactic plane with LHAASO-WCDA | |
Li, Huicai1,4; Zhang, Peipei1,13; Hu, Shicong1,4; Zha, Min1,4; Guo, Yiqing1,4; Yuan, Qiang13; Yao, Zhiguo1,4; Cao, Zhen2,3,4,18; Aharonian, F.5,6; An, Q.7,8; Axikegu9; Bai, Y. X.2,4; Bao, Y. W.10; Bastieri, D.11; Bi, X. J.2,3,4; Bi, Y. J.2,4; Cai, J. T.11; Cao, Q.12; Cao, W. Y.8; Cao, Zhe7,8; Chang, J.13; Chang, J. F.2,4,7; Chen, A. M.14; Chen, E. S.2,3,4; Chen, Liang15; Chen, Lin9; Chen, Long9; Chen, M. J.2,4; Chen, M. L.2,4,7; Chen, Q. H.9; Chen, S. H.2,3,4,18; Chen, S. Z.2,4; Chen, T. L.16; Chen, Y.10; Cheng, N.2,4; Cheng, Y. D.2,4; Cui, M. Y.13; Cui, S. W.12; Cui, X. H.17; Cui, Y. D.18; Dai, B. Z.19; Dai, H. L.2,4,7; Dai, Z. G.8; Danzengluobu16; della Volpe, D.20; Dong, X. Q.2,3,4; Duan, K. K.13; Fan, J. H.11; Fan, Y. Z.13; Fang, J.19; Fang, K.2,4; Feng, C. F.21; Feng, L.13; Feng, S. H.2,4; Feng, X. T.21; Feng, Y. L.16; Gabici, S.22; Gao, B.2,4; Gao, C. D.21; Gao, L. Q.2,3,4; Gao, Q.16; Gao, W.2,4; Gao, W. K.2,3,4; Ge, M. M.19; Geng, L. S.2,4; Giacinti, G.14; Gong, G. H.23; Gou, Q. B.2,4; Gu, M. H.2,4,7; Guo, F. L.15; Guo, X. L.9; Guo, Y. Q.2,4; Guo, Y. Y.13; Han, Y. A.24; He, H. H.2,3,4; He, H. N.13; He, J. Y.13; He, X. B.18; He, Y.9; Heller, M.20; Hor, Y. K.18; Hou, B. W.2,3,4; Hou, C.2,4; Hou X(侯贤)25![]() ![]() | |
会议录名称 | Proceedings of Science |
2024-09-27 | |
卷号 | 444 |
DOI | 10.22323/1.444.0672 |
产权排序 | 第25完成单位 |
收录类别 | EI |
会议名称 | 38th International Cosmic Ray Conference, ICRC 2023 |
会议日期 | 2023-07-26 |
会议地点 | Nagoya, Japan |
会议赞助商 | et al.; Institute for Cosmic Ray Research (ICRR) Univeristy of Tokyo; International Union of Pure and Applied Physics (IUPAP); JPS; Nagoya Convention and Visitors Bureau; Nagoya University |
摘要 | Galactic diffuse gamma ray emission (GDE) is introduced by the galactic cosmic rays (CR) interacting with the interstellar medium (ISM) and radiation fields (ISRF). The GDE is a very important probe of CR propagation and interaction. Different from the measurements of CR particles in the local vicinity, the GDE enables a direct measurement of CR distribution in the Milky Way, and can thus provide much more important information of the production and propagation of CRs. LHAASO-WCDA, with an large area of 78000 m2, has an excellent ability to study VHE gamma-ray astronomy and GDE. In this proceeding, method of background estimation and some techniques to reduce the contaminant of resolved gamma-ray sources are briefly introduced. At last, diffuse emissions from the inner (15◦ ◦, |b| ◦) and outer (125◦ ◦, |b| ◦) Galactic plane are detected with 27.9σ and 11.9σ significance, respectively. © Copyright owned by the author(s) under the terms of the Creative Commons. |
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 ; 星系与宇宙学 |
文章类型 | Conference article (CA) |
URL | 查看原文 |
EI入藏号 | 20245117555915 |
EI主题词 | Gamma rays |
EI分类号 | 1301.2.1 - 1301.2.2 - 1302.1 - 1303.1 - 941.5 - 941.9 - 942.1.7 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27920 |
专题 | 星系类星体研究组 |
作者单位 | 1.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; 2.Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; 3.University of Chinese Academy of Sciences, Beijing, 100049, China; 4.TIANFU Cosmic Ray Research Center, Sichuan, Chengdu, China; 5.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2, Dublin, Ireland; 6.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, Heidelberg, 69029, Germany; 7.State Key Laboratory of Particle Detection and Electronics, China; 8.University of Science and Technology of China, Anhui, Hefei, 230026, China; 9.School of Physical Science and Technology, School of Information Science and Technology, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China; 10.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 11.Center for Astrophysics, Guangzhou University, Guangdong, Guangzhou, 510006, China; 12.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 13.Key Laboratory of Dark Matter and Space Astronomy, Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 14.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, 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 (Zhuhai), School of Physics (Guangzhou), Sino-French Institute of Nuclear Engineering and Technology (Zhuhai), Sun Yat-sen University, Guangdong, Guangzhou, 510275, China; 19.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 20.Département de Physique Nucléaire et Corpusculaire, Faculté de Sciences, Université de Genève, 24 Quai Ernest Ansermet, Geneva, 1211, Switzerland; 21.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China; 22.APC, Université Paris Cité, CNRS, IN2P3, CEA, IRFU, Observatoire de Paris, Paris, 119 75205, France; 23.Department of Engineering Physics, Tsinghua University, Beijing, 100084, China; 24.School of Physics and Microelectronics, Zhengzhou University, Henan, Zhengzhou, 450001, China; 25.Yunnan Observatories, Chinese Academy of Sciences, Yunnan, Kunming, 650216, China; 26.College of Physics, Sichuan University, Sichuan, Chengdu, 610065, China; 27.Institute for Nuclear Research of Russian Academy of Sciences, Moscow, 117312, Russia; 28.School of Physics, Peking University, Beijing, 100871, China; 29.School of Physical Science and Technology, Guangxi University, Guangxi, Nanning, 530004, China; 30.Department of Physics, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; 31.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; 32.Center for Relativistic Astrophysics and High Energy Physics, School of Physics and Materials Science, Institute of Space Science and Technology, Nanchang University, Jiangxi, Nanchang, 330031, China; 33.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China |
推荐引用方式 GB/T 7714 | Li, Huicai,Zhang, Peipei,Hu, Shicong,et al. Measurement of very-high-energy diffuse gamma-ray emission from |b|<5◦ of the Galactic plane with LHAASO-WCDA[C],2024. |
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