Institutional Repository System Of Yunnan Observatories, CAS
| LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021 | |
Cao, Zhen1,2,3; Aharonian, F.4,5; Axikegu6; Bai, Y. X.1,3; Bao, Y. W.7; Bastieri, D.8; Bi, X. J.1,2,3; Bi, Y. J.1,3; Bian, W.9; Bukevich, A. V.10; Cao, Q.11; Cao, W. Y.12; Cao, Zhe12,13; Chang, J.14; Chang, J. F.1,3,13; Chen, A. M.9; Chen, E. S.1,2,3; Chen, H. X.15; Chen, Liang16; Chen, Lin6; Chen, Long6; Chen, M. J.1,3; Chen, M. L.1,3,13; Chen, Q. H.6; Chen, S.17; Chen, S. H.1,2,3; Chen, S. Z.1,3; Chen, T. L.18; Chen, Y.7; Cheng, N.1,3; Cheng, Y. D.1,2,3; Chu, M. C.19; Cui, M. Y.14; Cui, S. W.11; Cui, X. H.20; Cui, Y. D.21,22; Dai, B. Z.17; Dai, H. L.1,3,13; Dai, Z. G.12; Danzengluobu18; Dong, X. Q.1,2,3; Duan, K. K.14; Fan, J. H.8; Fan, Y. Z.14; Fang, J.17; Fang, J. H.15; Fang, K.1,3; Feng, C. F.23; Feng, H.1; Feng, L.14; Feng, S. H.1,3; Feng, X. T.23; Feng, Y.15; Feng, Y. L.18; Gabici, S.24; Gao, B.1,3; Gao, C. D.23; Gao, Q.18; Gao, W.1,3; Gao, W. K.1,2,3; Ge, M. M.17; Ge, T. T.21,22; Geng, L. S.1,3; Giacinti, G.9; Gong, G. H.25; Gou, Q. B.1,3; Gu, M. H.1,3,13; Guo, F. L.16; Guo, J.25; Guo, X. L.6; Guo, Y. Q.1,3; Guo, Y. Y.14; Han, Y. A.26; Hannuksela, O. A.19; Hasan, M.1,2,3; He, H. H.1,2,3; He, H. N.14; He, J. Y.14; He, Y.6; Hor, Y. K.21,22; Hou, B. W.1,2,3; Hou, C.1,3; Hou X(侯贤)27 ; Hu, H. B.1,2,3; Hu, Q.12,14; Hu, S. C.1,3,28; Huang, C.7; Huang, D. H.6; Huang, T. Q.1,3; Huang, W. J.21,22; Huang, X. T.23; Huang, X. Y.14; Huang, Y.1,2,3; Huang, Y. Y.7; Ji, X. L.1,3,13; Jia, H. Y.6; Jia, K.23; Jiang, H. B.1,3; Jiang, K.12,13; Jiang, X. W.1,3; Jiang, Z. J.17; Jin, M.6; Kang, M. M.29; Karpikov, I.10; Khangulyan, D.1,3; Kuleshov, D.10; Kurinov, K.10; Li, B. B.11; Li, C. M.7; Li, Cheng12,13; Li, Cong1,3; Li, D.1,2,3; Li, F.1,3,13; Li, H. B.1,3; Li, H. C.1,3; Li, Jian12; Li, Jie1,3,13; Li, K.1,3; Li, S. D.2,16; Li, W. L.9,23; Li, X. R.1,3; Li, Xin12,13; Li, Y. Z.1,2,3; Li, Zhe1,3; Li, Zhuo30; Liang, E. W.31; Liang, Y. F.31; Lin, S. J.21,22; Liu, B.12; Liu, C.1,3; Liu, D.23; Liu, D. B.9; Liu, H.6; Liu, H. D.26; Liu, J.1,3; Liu, J. L.1,3; Liu, M. Y.18; Liu, R. Y.7; Liu, S. M.6; Liu, W.1,3; Liu, Y.8; Liu, Y. N.25; Luo, Q.21,22
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| 发表期刊 | Science China: Physics, Mechanics and Astronomy
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| 2025-07 | |
| 卷号 | 68期号:7 |
| DOI | 10.1007/s11433-024-2508-5 |
| 产权排序 | 第27完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | γ rays pulsars individual PSR J0248+6021 interstellar medium (ISM) nebulae |
| 摘要 | We report the detection of an extended very-high-energy (VHE) γ-ray source coincident with the location of middle-aged (62.4 kyr) pulsar PSR J0248+6021, by using the LHAASO-WCDA data of live 796 d and LHAASO-KM2A data of live 1216 d. A significant excess of γ-ray induced showers is observed both by WCDA in energy bands of 1–25 TeV and KM2A in energy bands of >25 TeV with 7.3σ and 13.5σ, respectively. The best-fit position derived through WCDA data is R.A. = 42.06° ± 0.12° and Dec. = 60.24° ± 0.13° with an extension of 0.69°±0.15° and that of the KM2A data is R.A.= 42.29° ± 0.13° and Dec. = 60.38° ± 0.07° with an extension of 0.37° ±0.07°. No clear extended multiwavelength counterpart of this LHAASO source has been found from the radio band to the GeV band. The most plausible explanation of the VHE γ-ray emission is the inverse Compton process of highly relativistic electrons and positrons injected by the pulsar. These electrons/positrons are hypothesized to be either confined within the pulsar wind nebula or to have already escaped into the interstellar medium, forming a pulsar halo. © Science China Press 2025. |
| 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 | Journal article (JA) |
| ISSN | 1674-7348 |
| URL | 查看原文 |
| EI入藏号 | 20250717868385 |
| EI主题词 | Gamma rays |
| EI分类号 | 1301.1.3 Atomic and Molecular Physics - 1301.2.1 High Energy Physics - 1301.2.2 Nuclear Physics - 1302.1.2 Extraterrestrial Physics and Stellar Phenomena - 201.5.2 Metal Forming - 804.2 Inorganic Compounds |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/28169 |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; 2.University of Chinese Academy of Sciences, Beijing, 100049, China; 3.TIANFU Cosmic Ray Research Center, Chengdu, 610213, China; 4.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2, Dublin, Ireland; 5.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, Heidelberg, 69029, Germany; 6.School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China; 7.School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China; 8.Center for Astrophysics, Guangzhou University, Guangzhou, 510006, China; 9.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China; 10.Institute for Nuclear Research of Russian Academy of Sciences, Moscow, 117312, Russia; 11.Hebei Normal University, Shijiazhuang, 050024, China; 12.University of Science and Technology of China, Hefei, 230026, China; 13.State Key Laboratory of Particle Detection and Electronics, Beijing, China; 14.Key Laboratory of Dark Matter and Space Astronomy & Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210023, China; 15.Research Center for Astronomical Computing, Zhejiang Laboratory, Hangzhou, 311121, China; 16.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China; 17.School of Physics and Astronomy, Yunnan University, Kunming, 650091, China; 18.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa, 850000, China; 19.Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; 20.Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 21.School of Physics and Astronomy (Zhuhai) & Sino-French Institute of Nuclear Engineering and Technology (Zhuhai), Sun Yat-sen University, Zhuhai, 519000, China; 22.School of Physics (Guangzhou), Sun Yat-sen University, Guangzhou, 510275, China; 23.Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, 266237, China; 24.APC, Université Paris Cité, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Paris, 119 75205, France; 25.Department of Engineering Physics & Department of Astronomy, Tsinghua University, Beijing, 100084, China; 26.School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China; 27.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 28.China Center of Advanced Science and Technology, Beijing, 100190, China; 29.College of Physics, Sichuan University, Chengdu, 610065, China; 30.School of Physics, Peking University, Beijing, 100871, China; 31.Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China; 32.Department of Physics, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; 33.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; 34.Center for Relativistic Astrophysics and High Energy Physics, School of Physics and Materials Science & Institute of Space Science and Technology, Nanchang University, Nanchang, 330031, China; 35.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China; 36.School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China |
| 推荐引用方式 GB/T 7714 | Cao, Zhen,Aharonian, F.,Axikegu,et al. LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021[J]. Science China: Physics, Mechanics and Astronomy,2025,68(7). |
| APA | Cao, Zhen.,Aharonian, F..,Axikegu.,Bai, Y. X..,Bao, Y. W..,...&Luo, Q..(2025).LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021.Science China: Physics, Mechanics and Astronomy,68(7). |
| MLA | Cao, Zhen,et al."LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021".Science China: Physics, Mechanics and Astronomy 68.7(2025). |
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