| Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622+3749 Observed by LHAASO-KM2A | |
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| 发表期刊 | Physical Review Letters
 |
| 2021-06-18 | |
| 卷号 | 126期号:24 |
| DOI | 10.1103/PhysRevLett.126.241103 |
| 产权排序 | 第25完成单位 |
| 收录类别 | SCI ; EI |
| 摘要 | We report the discovery of an extended very-high-energy (VHE) gamma-ray source around the location of the middle-aged (207.8 kyr) pulsar PSR J0622+3749 with the Large High-Altitude Air Shower Observatory (LHAASO). The source is detected with a significance of 8.2σ for E>25 TeV assuming a Gaussian template. The best-fit location is (right ascension, declination) =(95.47°±0.11°,37.92°±0.09°), and the extension is 0.40°±0.07°. The energy spectrum can be described by a power-law spectrum with an index of -2.92±0.17stat±0.02sys. No clear extended multiwavelength counterpart of the LHAASO source has been found from the radio to sub-TeV bands. The LHAASO observations are consistent with the scenario that VHE electrons escaped from the pulsar, diffused in the interstellar medium, and scattered the interstellar radiation field. If interpreted as the pulsar halo scenario, the diffusion coefficient, inferred for electrons with median energies of ∼160 TeV, is consistent with those obtained from the extended halos around Geminga and Monogem and much smaller than that derived from cosmic ray secondaries. The LHAASO discovery of this source thus likely enriches the class of so-called pulsar halos and confirms that high-energy particles generally diffuse very slowly in the disturbed medium around pulsars. © 2021 American Physical Society. |
| 资助项目 | National Key R&D program of China[2018YFA0404202] ; National Key R&D program of China[2018YFA0404201] ; National Key R&D program of China[2018YFA0404203] ; National Key R&D program of China[2018YFA0404204] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11722328] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11851305] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11635011] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11761141001] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11765019] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11775233] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1738205] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1931111] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1931201] ; Chinese Academy of SciencesChinese Academy of Sciences ; Program for Innovative Talents and Entrepreneur in Jiangsu[RTA6280002] ; Chengdu Management Committee of Tianfu New Area |
| 项目资助者 | National Key R&D program of China[2018YFA0404202, 2018YFA0404201, 2018YFA0404203, 2018YFA0404204] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11722328, 11851305, 11635011, 11761141001, 11765019, 11775233, U1738205, U1931111, U1931201] ; Chinese Academy of SciencesChinese Academy of Sciences ; Program for Innovative Talents and Entrepreneur in Jiangsu[RTA6280002] ; Chengdu Management Committee of Tianfu New Area |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 |
| 文章类型 | Article |
| 出版者 | AMER PHYSICAL SOC |
| 出版地 | ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| ISSN | 0031-9007 |
| URL | 查看原文 |
| WOS记录号 | WOS:000663310100005 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 关键词[WOS] | SLOW-DIFFUSION ; POSITRON FLUX ; WIND NEBULA ; SKY SURVEY ; CATALOG ; SPECTRUM ; PULSAR ; ELECTRONS ; PROPAGATION ; CONSTRAIN |
| EI入藏号 | 20212710579467 |
| EI主题词 | Gamma rays |
| EI分类号 | 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/24431 |
| 专题 | 高能天体物理研究组 南方基地 |
| 通讯作者 | Feng, C. F. |
| 作者单位 | 1.Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, 100049 Beijing, China; 2.University of Chinese Academy of Sciences, 100049 Beijing, China; 3.TIANFU Cosmic Ray Research Center, Chengdu, 610000 Sichuan, China; 4.State Key Laboratory of Particle Detection and Electronics, 100049 Beijing, China; 5.University of Science and Technology of China, 230026 Hefei, Anhui, China; 6.Department of Engineering Physics, Tsinghua University, 100084 Beijing, China; 7.National Astronomical Observatories, Chinese Academy of Sciences, 100101 Beijing, China; 8.National Space Science Center, Chinese Academy of Sciences, 100190 Beijing, China; 9.School of Physics, Peking University, 100871 Beijing, China; 10.Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, China; 11.School of Physics and Astronomy & School of Physics (Guangzhou), Sun Yat-sen University, 519082 Zhuhai, Guangdong, China; 12.School of Physical Science and Technology, Guangxi University, 530004 Nanning, Guangxi, China; 13.Hebei Normal University, 050024 Shijiazhuang, Hebei, China; 14.School of Physics and Microelectronics, Zhengzhou University, 450001 Zhengzhou, Henan, China; 15.School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, China; 16.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210023 Nanjing, Jiangsu, China; 17.Institute of Frontier and Interdisciplinary Science, Shandong University, 266237 Qingdao, Shandong, China; 18.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, China; 19.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, China; 20.School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China; 21.College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China; 22.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, 850000 Lhasa, Tibet, China; 23.School of Physics and Technology, Wuhan University, 430072 Wuhan, Hubei, China; 24.School of Physics and Astronomy, Yunnan University, 650091 Kunming, Yunnan, China; 25.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, China; 26.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2 Dublin, Ireland; 27.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, 69029 Heidelberg, Germany; 28.Dipartimento di Fisica dell’Università di Napoli “Federico II,” Complesso Universitario di Monte Sant’Angelo, via Cinthia, 80126 Napoli, Italy; 29.Institute for Nuclear Research of Russian Academy of Sciences, 117312 Moscow, Russia; 30.Moscow Institute of Physics and Technology, 141700 Moscow, Russia; 31.Département de Physique Nucléaire et Corpusculaire, Faculté de Sciences, Université de Genève, 24 Quai Ernest Ansermet, 1211 Geneva, Switzerland; 32.Department of Physics, Faculty of Science, Mahidol University, 10400 Bangkok, Thailand |
| 推荐引用方式 GB/T 7714 | Aharonian, F.,An, Q.,Axikegu,et al. Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622+3749 Observed by LHAASO-KM2A[J]. Physical Review Letters,2021,126(24). |
| APA | Aharonian, F..,An, Q..,Axikegu.,Bai, L. X..,Bai, Y. X..,...&Huang, X. Y..(2021).Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622+3749 Observed by LHAASO-KM2A.Physical Review Letters,126(24). |
| MLA | Aharonian, F.,et al."Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622+3749 Observed by LHAASO-KM2A".Physical Review Letters 126.24(2021). |
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| Extended Very-High-E（337KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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