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An Enigmatic PeVatron in an Area around HII Region G35.6-0.5
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, B. Q.15; Chen, E. S.1,2,3; Chen, H. X.16; Chen, Liang17; Chen, Lin6; Chen, Long6; Chen, M. J.1,3; Chen, M. L.1,3,13; Chen, Q. H.6; Chen, S.18; Chen, S. H.1,2,3; Chen, S. Z.1,3; Chen, T. L.19; Chen, Y.7; Cheng, N.1,3; Cheng, Y. D.1,2,3; Chu, M. C.20; Cui, M. Y.14; Cui, S. W.11; Cui, X. H.21; Cui, Y. D.22; Dai, B. Z.18; Dai, H. L.1,3,13; Dai, Z. G.12; Danzengluobu19; Dong, X. Q.1,2,3; Duan, K. K.14; Fan, J. H.8; Fan, Y. Z.14; Fang, J.18; Fang, J. H.16; 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.16; Feng, Y. L.19; Gabici, S.24; Gao, B.1,3; Gao, C. D.23; Gao, Q.19; Gao, W.1,3; Gao, W. K.1,2,3; Ge, M. M.18; Ge, T. T.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.17; Guo, J.25; Guo, X. L.6; Guo, Y. Q.1,3; Guo, Y. Y.14; Han, Y. A.26; Hannuksela, O. A.20; 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.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.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.18; 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.2,17; Li, W. L.23; Li, W. L.9; 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.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.19; Liu, R. Y.7; Liu, S.M.6; Liu, W.1,3; Liu, Y.8; Liu, Y. N.25; Luo, Q.22; Luo, Y.9; Lv, H. K.1,3; Ma, B. Q.30; Ma, L. L.1,3; Ma, X. H.1,3; Mao JR(毛基荣)27; Min, Z.1,3; Mitthumsiri, W.32; Mu, H. J.26; Nan, Y. C.1,3; Neronov, A.24; Ng, K. C. Y.20; Ou, L. J.8; Pattarakijwanich, P.32; Pei, Z. Y.8; Qi, J. C.1,2,3; Qi, M. Y.1,3; Qiao, B. Q.1,3; Qin, J. J.12; Raza, A.1,2,3; Ruffolo, D.32; Sáiz, A.32; Saeed, M.1,2,3; Semikoz, D.24; Shao, L.11; Shchegolev, O.10,33; Sheng, X. D.1,3; Shu, F. W.34; Song, H. C.30; Stenkin, Yu. V.10,33; Stepanov, V.10; Su, Y.14; Sun, D. X.12,14; Sun, Q. N.6; Sun, X. N.31; Sun, Z. B.35; Takata, J.36; Tam, P. H. T.22; Tang, Q. W.34; Tang, R.9; Tang, Z. B.12,13; Tian, W. W.2,21; Wan, L. H.22; Wang, C.35; Wang, C. B.6; Wang, G. W.12; Wang, H. G.8; Wang, H. H.22; Wang JC(王建成)27; Wang, Kai7; Wang, Kai36; Wang, L. P.1,2,3; Wang, L. Y.1,3; Wang, P. H.6; Wang, R.23; Wang, W.22; Wang, X. G.31; Wang, X. Y.7; Wang, Y.6; Wang, Y. D.1,3; Wang, Y. J.1,3; Wang, Z. H.29; Wang, Z. X.18; Wang, Zhen9; Wang, Zheng1,3,13; Wei, D. M.14; Wei, J. J.14; Wei, Y. J.1,2,3; Wen, T.18; Wu, C. Y.1,3; Wu, H. R.1,3; Wu, Q. W.36; Wu, S.1,3; Wu, X. F.14; Wu, Y. S.12; Xi, S. Q.1,3; Xia, J.12,14; Xiang, G. M.2,17; Xiao, D. X.11; Xiao, G.1,3; Xin, Y. L.6; Xing, Y.17; Xiong DR(熊定荣)27; Xiong, Z.1,2,3; Xu, D. L.9; Xu, R. F.1,2,3; Xu, R. X.30; Xu, W. L.29; Xue, L.23; Yan, D. H.18; Yan, J. Z.14; Yan, T.1,3; Yang, C. W.29; Yang CY(杨初源)27; Yang, F.11; Yang, F. F.1,3,13; Yang, L. L.22; Yang, M. J.1,3; Yang, R. Z.12; Yang, W. X.8; Yao, Y. H.1,3; Yao, Z. G.1,3; Yin, L. Q.1,3; Yin, N.23; You, X. H.1,3; You, Z. Y.1,3; Yu, Y. H.12; Yuan, Q.14; Yue, H.1,2,3; Zeng, H. D.14; Zeng, T. X.1,3,13; Zeng, W.18; Zha, M.1,3; Zhang, B. B.7; Zhang, F.6; Zhang, H.9; Zhang, H. M.7; Zhang, H. Y.18; Zhang, J. L.21; Zhang, Li18; Zhang, P. F.18; Zhang, P. P.12,14; Zhang, R.14; Zhang, S. B.2,21; Zhang, S. R.11; Zhang, S. S.1,3; Zhang, X.7,37; Zhang, X. P.1,3; Zhang, Y. F.6; Zhang, Yi1,14; Zhang, Yong1,3; Zhao, B.6; Zhao, J.1,3; Zhao, L.12,13; Zhao, L. Z.11; Zhao, S. P.14; Zhao XH(赵晓红)27; Zheng, F.35; Zhong, W. J.7; Zhou, B.1,3; Zhou, H.9; Zhou, J. N.17; Zhou, M.34; Zhou, P.7; Zhou, R.29; Zhou, X. X.1,2,3; Zhou, X. X.6; Zhu, B. Y.12,14; Zhu, C. G.23; Zhu, F. R.6; Zhu, H.21; Zhu, K. J.1,2,3,13; Zou, Y. C.36; Zuo, X.1,3
发表期刊ASTROPHYSICAL JOURNAL
2025-01-20
卷号979期号:1
DOI10.3847/1538-4357/ad991d
产权排序第27完成单位
收录类别SCI
摘要Identifying Galactic PeVatrons (PeV particle accelerators) from ultrahigh-energy (UHE, >100 TeV) gamma-ray sources plays a crucial role in revealing the origin of Galactic cosmic rays. The UHE source 1LHAASO J1857+0203u is suggested to be associated with HESS J1858+020, which may be attributed to the possible PeVatron candidate supernova remnant (SNR) G35.6-0.4 or H II region G35.6-0.5. We perform detailed analysis on the very-high-energy and UHE gamma-ray emissions toward this region with data from the Large High Altitude Air Shower Observatory (LHAASO). 1LHAASO J1857+0203u is detected with a significance of 11.6 sigma above 100 TeV, indicating the presence of a PeVatron. It has an extent of similar to 0 degrees.18 with a power-law (PL) spectral index of similar to 2.5 at 1-25 TeV and pointlike emission with a PL spectral index of similar to 3.2 above 25 TeV. Using archival CO and H I data, we identify some molecular and atomic clouds that may be associated with the TeV gamma-ray emissions. Our modeling indicates that the TeV gamma-ray emissions are unlikely to arise from clouds illuminated by the protons that escaped from SNR G35.6-0.4. In the scenario in which H II region G35.6-0.5 could accelerate particles to the UHE band, the observed GeV-TeV gamma-ray emission could be well explained by a hadronic model with a PL spectral index of similar to 2.0 and cutoff energy of similar to 450 TeV. However, an origin in an evolved pulsar wind nebula cannot be ruled out.
资助项目Natural Sciences and Engineering Research Council of Canada; U.S. National Science Foundation; NSFC[12393852]; NSFC[12173018]; NSFC[12121003]; NSFC[U1931204]; National Key R&D program of China[2018YFA0404201]; National Key R&D program of China[2018YFA0404202]; National Key R&D program of China[2018YFA0404203]; National Key R&D program of China[2018YFA0404204]; National Science and Technology Development Agency (NSTDA); National Research Council of Thailand (NRCT) under the High-Potential Research Team Grant Program[N42A650868]
项目资助者Natural Sciences and Engineering Research Council of Canada ; U.S. National Science Foundation ; NSFC[12393852, 12173018, 12121003, U1931204] ; National Key R&D program of China[2018YFA0404201, 2018YFA0404202, 2018YFA0404203, 2018YFA0404204] ; National Science and Technology Development Agency (NSTDA) ; National Research Council of Thailand (NRCT) under the High-Potential Research Team Grant Program[N42A650868]
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Article
出版者IOP Publishing Ltd
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:001439580700001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]GAMMA-RAY SOURCES ; COSMIC-RAYS ; ACCELERATION ; PROTONS ; BAND
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文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/28215
专题星系类星体研究组
高能天体物理研究组
南方基地
作者单位1.Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, 100049 Beijing, People's Republic of China;
2.University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China;
3.TIANFU Cosmic Ray Research Center, Chengdu, Sichuan, People's Republic of China;
4.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2 Dublin, Ireland;
5.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, 69029 Heidelberg, Germany;
6.School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, People's Republic of China;
7.School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, People's Republic of China; [email protected], [email protected];
8.Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, People's Republic of China;
9.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China;
10.Institute for Nuclear Research of Russian Academy of Sciences, 117312 Moscow, Russia;
11.Hebei Normal University, 050024 Shijiazhuang, Hebei, People's Republic of China;
12.University of Science and Technology of China, 230026 Hefei, Anhui, People's Republic of China;
13.State Key Laboratory of Particle Detection and Electronics, People's Republic of China;
14.Key Laboratory of Dark Matter and Space Astronomy & Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210023 Nanjing, Jiangsu, People's Republic of China;
15.South-Western Institute for Astronomy Research, Yunnan University, 650091 Kunming, Yunnan, People's Republic of China;
16.Research Center for Astronomical Computing, Zhejiang Laboratory, 311121 Hangzhou, Zhejiang, People's Republic of China;
17.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, People's Republic of China;
18.School of Physics and Astronomy, Yunnan University, 650091 Kunming, Yunnan, People's Republic of China;
19.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, 850000 Lhasa, Tibet, People's Republic of China;
20.Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People's Republic of China;
21.Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, 100101 Beijing, People's Republic of China;
22.School of Physics and Astronomy (Zhuhai) & School of Physics (Guangzhou) & Sino-French Institute of Nuclear Engineering and Technology (Zhuhai), Sun Yat-sen University, 519000 Zhuhai & 510275 Guangzhou, Guangdong, People's Republic of China;
23.Institute of Frontier and Interdisciplinary Science, Shandong University, 266237 Qingdao, Shandong, People's Republic of China;
24.APC, Université Paris Cité, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, 119 75205 Paris, France;
25.Department of Engineering Physics & Department of Astronomy, Tsinghua University, 100084 Beijing, People's Republic of China;
26.School of Physics and Microelectronics, Zhengzhou University, 450001 Zhengzhou, Henan, People's Republic of China;
27.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, People's Republic of China;
28.China Center of Advanced Science and Technology, Beijing 100190, People's Republic of China;
29.College of Physics, Sichuan University, 610065 Chengdu, Sichuan, People's Republic of China;
30.School of Physics, Peking University, 100871 Beijing, People's Republic of China;
31.Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China;
32.Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
33.Moscow Institute of Physics and Technology, 141700 Moscow, Russia;
34.Center for Relativistic Astrophysics and High Energy Physics, School of Physics and Materials Science & Institute of Space Science and Technology, Nanchang University, 330031 Nanchang, Jiangxi, People's Republic of China;
35.National Space Science Center, Chinese Academy of Sciences, 100190 Beijing, People's Republic of China;
36.School of Physics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China;
37.School of Physics and Technology, Nanjing Normal University, 210023 Nanjing, Jiangsu, People's Republic of China; [email protected]
推荐引用方式
GB/T 7714		 Cao, Zhen,Aharonian, F.,Axikegu,et al. An Enigmatic PeVatron in an Area around HII Region G35.6-0.5[J]. ASTROPHYSICAL JOURNAL,2025,979(1).
APA Cao, Zhen.,Aharonian, F..,Axikegu.,Bai, Y. X..,Bao, Y. W..,...&Zuo, X..(2025).An Enigmatic PeVatron in an Area around HII Region G35.6-0.5.ASTROPHYSICAL JOURNAL,979(1).
MLA Cao, Zhen,et al."An Enigmatic PeVatron in an Area around HII Region G35.6-0.5".ASTROPHYSICAL JOURNAL 979.1(2025).
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