Observations of SNR CTB 109 with LHAASO
文献类型：会议论文
| 作者 | Cao, Zhen23,24,25; Aharonian, F.25,26,27,28; Bai, Y. X.23,25; Bao, Y. W.29; Bastieri, D.30; Bi, X. J.23,24,25; Bi, Y. J.23,25; Bian, W.29; Bukevich, A. V.31; Cai, C. M.32 |
| 出版日期 | 2025-12-30 |
| 会议日期 | 2025-07-15 |
| 会议地点 | Geneva, Switzerland |
| 卷号 | 501 |
| DOI | 10.22323/1.501.0732 |
| 英文摘要 | CTB 109 is a middle-aged shell-type supernova remnant (SNR) with bright thermal X-ray emission. The gamma-ray emission of CTB 109 exhibits a center-bright morphology, which is very consistent with its thermal X-ray emission rather than the shell-type structure in the radio band. The GeV gamma-ray spectrum shows a significant spectral curvature at a few GeV, which can well explain the lack of TeV gamma-ray emission from CTB 109. In this work, we describe the observations of CTB 109 by LHAASO, together with the updated observations by Fermi-LAT. Based on the LHAASO measurements, we will set stringent upper limits on the distribution of particles accelerated by CTB 109. We perform extensive modelling using multi-wavelength data available for CTB 109, and discuss the different emission models for leptonic and hadronic scenarios. © Copyright owned by the author(s) |
| 产权排序 | 第27完成单位 |
| 资助机构 | Science and Technology Department of Sichuan Province[2024ZYD0111] ; National Key Research and Development Program of China[2024YFA1611403] |
| 会议录 | Proceedings of Science
 |
| 文献子类 | Conference article (CA) - |
| 学科主题 | 物理学 ; 高能物理学 ; 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| 资助项目 | Science and Technology Department of Sichuan Province[2024ZYD0111];National Key Research and Development Program of China[2024YFA1611403] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28945]  |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 2.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 3.Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Hong Kong; 4.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 5.Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 6.School of Physics and Astronomy, Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Guangdong, Zhuhai, 519000, China; 7.School of Physics, Guangdong, Guangzhou, 510275, China; 8.School of Physics, Huazhong University of Science and Technology, Hubei, Wuhan, 430074, China 9.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China; 10.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; |
| 推荐引用方式 GB/T 7714 | Cao, Zhen,Aharonian, F.,Bai, Y. X.,et al. Observations of SNR CTB 109 with LHAASO[C]. 见:. Geneva, Switzerland. 2025-07-15. |
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来源：云南天文台
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