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Investigation of the Ultra-High-Energy gamma-ray emission from the Northern Fermi Bubble with LHAASO-KM2A

文献类型：会议论文

作者Zhang, Yi5,6; He, Jiayin5,6; Zhang, Rui5,6; Zhao, Shiping4,6; Cao, Zhen1,2,3; Aharonian, F.7,11; An, Q.5,12; Axikegu13; Bai, Y. X.1,3; Bao, Y. W.14
出版日期2024-09-27
会议日期2023-07-26
会议地点Nagoya, Japan
卷号444
DOI10.22323/1.444.0651
英文摘要We analyze gamma-ray emission from the Northern Fermi bubble region at the ultra-high-energy range, using the data collected by LHAASO-KM2A from December 2019 to September 2022. Employing an improved gamma/hadron separation method, the median energy of the gamma rays is above 25 TeV. We perform the "direct integral method" in the background estimation; however, no significant excess is observed. Consequently, we present the expected upper limits for gamma-ray emissions within the Fermi bubble region at this energy range. © Copyright owned by the author(s) under the terms of the Creative Commons.
产权排序第25完成单位
资助机构National Key Research and Development Program of China[2018YFA0404202, 2018YFA0404203, 2018YFA0404204, 2018YFA0404201] ; National Natural Science Foundation of China[12261160362, 12273114, 12105294, 12022502, 12105301, 12205314]
会议录Proceedings of Science
文献子类Conference article (CA)
学科主题天文学 ; 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National Key Research and Development Program of China[2018YFA0404202];National Key Research and Development Program of China[2018YFA0404203];National Key Research and Development Program of China[2018YFA0404204];National Key Research and Development Program of China[2018YFA0404201];National Natural Science Foundation of China[12261160362];National Natural Science Foundation of China[12273114];National Natural Science Foundation of China[12105294];National Natural Science Foundation of China[12022502];National Natural Science Foundation of China[12105301];National Natural Science Foundation of China[12205314]
源URL[http://ir.ynao.ac.cn/handle/114a53/27918]  
专题星系类星体研究组
作者单位1.TIANFU Cosmic Ray Research Center, Sichuan, Chengdu, China;
2.University of Chinese Academy of Sciences, Beijing, 100049, China;
3.Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China;
4.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China;
5.University of Science and Technology of China, Anhui, Hefei, 230026, China;
6.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 9 Jiangsu, Nanjing, 210023, China;
7.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland;
8.Key Laboratory of Dark Matter and Space Astronomy, Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China;
9.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China;
10.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China;
推荐引用方式
GB/T 7714		 Zhang, Yi,He, Jiayin,Zhang, Rui,et al. Investigation of the Ultra-High-Energy gamma-ray emission from the Northern Fermi Bubble with LHAASO-KM2A[C]. 见:. Nagoya, Japan. 2023-07-26.

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来源：云南天文台

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