NAOC Open IR
Discovery of a New Gamma-Ray Source, LHAASO J0341+5258, with Emission up to 200 TeV
Cao, Zhen1,2,3,4,5; Aharonian, F.6,7; An, Q.8,9; Axikegu10,11; Bai, L. X.12; Bai, Y. X.1,2,3,5; Bao, Y. W.13; Bastieri, D.14; Bi, X. J.1,2,3,4,5; Bi, Y. J.1,2,3,5; Cai, H.15; Cai, J. T.14; Cao, Zhe8,9; Chang, J.16; Chang, J. F.1,2,3,5,8; Chen, B. M.17; Chen, E. S.1,2,3,4,5; Chen, J.12; Chen, Liang1,2,3,4,5; Chen, Liang18; Chen, Long10,11; Chen, M. J.1,2,3,5; Chen, M. L.1,2,3,5,8; Chen, Q. H.10,11; Chen, S. H.1,2,3,4,5; Chen, S. Z.1,2,3,5; Chen, T. L.19; Chen, X. L.1,2,3,4,5; Chen, Y.13; Cheng, N.1,2,3,5; Cheng, Y. D.1,2,3,5; Cui, S. W.17; Cui, X. H.20; Cui, Y. D.21,22; Piazzoli, B. D'Ettorre23; Dai, B. Z.24; Dai, H. L.1,2,3,5,8; Dai, Z. G.9; Danzengluobu19; della Volpe, D.25; Dong, X. J.1,2,3,5; Duan, K. K.16; Fan, J. H.14; Fan, Y. Z.16; Fan, Z. X.1,2,3,5; Fang, J.24; Fang, K.1,2,3,5; Feng, C. F.26; Feng, L.16; Feng, S. H.1,2,3,5; Feng, Y. L.16; Gao, B.1,2,3,5; Gao, C. D.26; Gao, L. Q.1,2,3,4,5; Gao, Q.19; Gao, W.26; Ge, M. M.24; Geng, L. S.1,2,3,5; Gong, G. H.27; Gou, Q. B.1,2,3,5; Gu, M. H.1,2,3,5,8; Guo, F. L.18; Guo, J. G.1,2,3,4,5; Guo, X. L.10,11; Guo, Y. Q.1,2,3,5; Guo, Y. Y.1,2,3,4,5,16; Han, Y. A.28; He, H. H.1,2,3,4,5; He, H. N.16; He, J. C.1,2,3,4,5; He, S. L.14; He, X. B.21,22; He, Y.10,11; Heller, M.25; Hor, Y. K.21,22; Hou, C.1,2,3,5; Hu, H. B.1,2,3,4,5; Hu, S.12; Hu, S. C.1,2,3,4,5; Hu, X. J.27; Huang, D. H.10,11; Huang, Q. L.1,2,3,5; Huang, W. H.26; Huang, X. T.26; Huang, X. Y.16; Huang, Z. C.10,11; Ji, F.1,2,3,5; Ji, X. L.1,2,3,5,8; Jia, H. Y.10,11; Jiang, K.8,9; Jiang, Z. J.24; Jin, C.1,2,3,4,5; Ke, T.1,2,3,5; Kuleshov, D.29; Levochkin, K.29; Li, B. B.17; Li, Cheng8,9; Li, Cong1,2,3,5; Li, F.1,2,3,5,8; Li, H. B.1,2,3,5; Li, H. C.1,2,3,5; Li, H. Y.9,16; Li, J.1,2,3,5,8; Li, K.1,2,3,5; Li, W. L.26; Li, X. R.1,2,3,5; Li, Xin8,9; Li, Xin10,11; Li, Y.12; Li, Y. Z.1,2,3,4,5; Li, Zhe1,2,3,5; Li, Zhuo30; Liang, E. W.31; Liang, Y. F.31; Lin, S. J.21,22; Liu, B.9; Liu, C.1,2,3,5; Liu, D.26; Liu, H.10,11; Liu, H. D.28; Liu, J.1,2,3,5; Liu, J. L.32,33; Liu, J. S.21,22; Liu, J. Y.1,2,3,5; Liu, M. Y.19; Liu, R. Y.13; Liu, S. M.10,11; Liu, W.1,2,3,5; Liu, Y.14; Liu, Y. N.27; Liu, Z. X.12; Long, W. J.10,11; Lu, R.24; Lv, H. K.1,2,3,5; Ma, B. Q.30; Ma, L. L.1,2,3,5; Ma, X. H.1,2,3,5; Mao, J. R.34; Masood, A.10,11; Min, Z.1,2,3,5; Mitthumsiri, W.35; Montaruli, T.25; Nan, Y. C.26; Pang, B. Y.10,11; Pattarakijwanich, P.35; Pei, Z. Y.14; Qi, M. Y.1,2,3,5; Qi, Y. Q.17; Qiao, B. Q.1,2,3,5; Qin, J. J.9; Ruffolo, D.35; Rulev, V29; Saiz, A.35; Shao, L.17; Shchegolev, O.29,36; Sheng, X. D.1,2,3,5; Shi, J. Y.1,2,3,5; Song, H. C.30; Stenkin, Yu, V29,36; Stepanov, V29; Su, Y.37; Sun, Q. N.10,11; Sun, X. N.31; Sun, Z. B.38; Tam, P. H. T.21,22; Tang, Z. B.8,9; Tian, W. W.4,20; Wang, B. D.1,2,3,5; Wang, C.38; Wang, H.10,11; Wang, H. G.14; Wang, J. C.34; Wang, J. S.32,33; Wang, L. P.26; Wang, L. Y.1,2,3,5; Wang, R. N.10,11; Wang, W.21,22; Wang, W.15; Wang, X. G.31; Wang, X. J.1,2,3,5; Wang, X. Y.13; Wang, Y.10,11; Wang, Y. D.1,2,3,5; Wang, Y. J.1,2,3,5; Wang, Y. P.1,2,3,4,5; Wang, Z. H.12; Wang, Z. X.24; Wang, Zhen32,33; Wang, Zheng1,2,3,5,8; Wei, D. M.16; Wei, J. J.16; Wei, Y. J.1,2,3,4,5; Wen, T.24; Wu, C. Y.1,2,3,5; Wu, H. R.1,2,3,5; Wu, S.1,2,3,5; Wu, W. X.10,11; Wu, X. F.16; Xi, S. Q.1,2,3,5; Xia, J.9,16; Xia, J. J.10,11; Xiang, G. M.4,18; Xiao, D. X.19; Xiao, G.1,2,3,5; Xiao, H. B.14; Xin, G. G.15; Xin, Y. L.10,11; Xing, Y.18; Xu, D. L.32,33; Xu, R. X.30; Xue, L.26; Yan, D. H.34; Yan, J. Z.16; Yang, C. W.12; Yang, F. F.1,2,3,5,8; Yang, J. Y.21,22; Yang, L. L.21,22; Yang, M. J.1,2,3,5; Yang, R. Z.9; Yang, S. B.24; Yao, Y. H.12; Yao, Z. G.1,2,3,5; Ye, Y. M.27; Yin, L. Q.1,2,3,5; Yin, N.26; You, X. H.1,2,3,5; You, Z. Y.1,2,3,4,5; Yu, Y. H.26; Yuan, Q.16; Zeng, H. D.16; Zeng, T. X.1,2,3,5,8; Zeng, W.24; Zeng, Z. K.1,2,3,4,5; Zha, M.1,2,3,5; Zhai, X. X.1,2,3,5; Zhang, B. B.13; Zhang, H. M.13; Zhang, H. Y.26; Zhang, J. L.20; Zhang, J. W.12; Zhang, L. X.14; Li Zhang24; Zhang, Lu17; Zhang, P. F.24; Zhang, P. P.17; Zhang, R.9,16; Zhang, S. R.17; Zhang, S. S.1,2,3,5; Zhang, X.13; Zhang, X. P.1,2,3,5; Zhang, Y. F.10,11; Zhang, Y. L.1,2,3,5; Zhang, Yi1,2,3,16; Zhang, Yong1,2,3,5; Zhao, B.10,11; Zhao, J.1,2,3,5; Zhao, L.8,9; Zhao, L. Z.17; Zhao, S. P.16,26; Zheng, F.38; Zheng, Y.10,11; Zhou, B.1,2,3,5; Zhou, H.32,33; Zhou, J. N.18; Zhou, P.13; Zhou, R.12; Zhou, X. X.10,11; Zhu, C. G.26; Zhu, F. R.10,11; Zhu, H.20; Zhu, K. J.1,2,3,4,5,8; Zuo, X.1,2,3,5
2021-08-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume917Issue:1Pages:7
AbstractWe report the discovery of a new unidentified extended gamma-ray source in the Galactic plane named LHAASO J0341+5258 with a pretrial significance of 8.2 standard deviations above 25 TeV. The best-fit position is R.A. = 55.degrees 34 +/- 0.degrees 11 and decl. = 52.degrees 97 +/- 0.degrees 07. The angular size of LHAASO J0341+5258 is 0.degrees 29 +/- 0.degrees 06(stat) +/- 0.degrees 02(sys). The flux above 25 TeV is about 20% of the flux of the Crab Nebula. Although a power-law fit of the spectrum from 10 to 200 TeV with the photon index alpha = 2.98 +/- 0.19(stat) +/- 0.02(sys) is not excluded, the LHAASO data together with the flux upper limit at 10 GeV set by the Fermi-LAT observation, indicate a noticeable steepening of an initially hard power-law spectrum with a cutoff at approximate to 50 TeV. We briefly discuss the origin of ultra-high-energy gamma rays. The lack of an energetic pulsar and a young supernova remnant inside or in the vicinity of LHAASO J0341+5258 challenge, but do not exclude, both the leptonic and hadronic scenarios of gamma-ray production.
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences
DOI10.3847/2041-8213/ac0fd5
WOS KeywordPULSARS
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0402701] ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH047]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; CAS Key Research Program of Frontier Sciences ; CAS Key Research Program of Frontier Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000684010500001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76028
Collection中国科学院国家天文台
Corresponding AuthorYang, C. W.
Affiliation1.Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Expt Phys Div, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Comp Ctr, Inst High Energy Phys, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.TIANFU Cosm Ray Res Ctr, Chengdu, Sichuan, Peoples R China
6.Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland
7.Max Planck Inst Nucl Phys, POB 103980, D-69029 Heidelberg, Germany
8.State Key Lab Particle Detect & Elect, Beijing, Peoples R China
9.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
10.Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
11.Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
12.Sichuan Univ, Coll Phys, Chengdu 610065, Sichuan, Peoples R China
13.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China
14.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
15.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China
16.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210023, Jiangsu, Peoples R China
17.Hebei Normal Univ, Shijiazhuang 050024, Hebei, Peoples R China
18.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
19.Tibet Univ, Key Lab Cosm Rays, Minist Educ, Lhasa 850000, Tibet, Peoples R China
20.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
21.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519000, Guangdong, Peoples R China
22.Sun Yat Sen Univ, Sch Phys Guangzhou, Zhuhai 519000, Guangdong, Peoples R China
23.Univ Napoli Federico II, Dipartimento Fis, Complesso Univ Monte St Angelo, Via Cinthia, I-80126 Naples, Italy
24.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China
25.Univ Geneva, Dept Phys Nucl & Corpusculaire, Fac Sci, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
26.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China
27.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China
28.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China
29.Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
30.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
31.Guangxi Univ, Sch Phys Sci & Technol, Nanning 530004, Guangxi, Peoples R China
32.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China
33.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
34.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
35.Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10400, Thailand
36.Moscow Inst Phys & Technol, Moscow 141700, Russia
37.Chinese Acad Sci, Purple Mt Observ, Key Lab Radio Astron, Nanjing 210023, Jiangsu, Peoples R China
38.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Cao, Zhen,Aharonian, F.,An, Q.,et al. Discovery of a New Gamma-Ray Source, LHAASO J0341+5258, with Emission up to 200 TeV[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,917(1):7.
APA Cao, Zhen.,Aharonian, F..,An, Q..,Axikegu.,Bai, L. X..,...&Zuo, X..(2021).Discovery of a New Gamma-Ray Source, LHAASO J0341+5258, with Emission up to 200 TeV.ASTROPHYSICAL JOURNAL LETTERS,917(1),7.
MLA Cao, Zhen,et al."Discovery of a New Gamma-Ray Source, LHAASO J0341+5258, with Emission up to 200 TeV".ASTROPHYSICAL JOURNAL LETTERS 917.1(2021):7.
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