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Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A
Cao, Zhen1,2,3; Aharonian, F.4,5; An, Q.6,7; Axikegu8; Bai, Y. X.1,3; Bao, Y. W.9; Bastieri, D.10; Bi, X. J.1,2,3; Bi, Y. J.1,3; Cai, J. T.10; Cao, Q.11; Cao, W. Y.7; Cao, Zhe6,7; Chang, J.12; Chang, J. F.1,3,6; Chen, A. M.13; Chen, E. S.1,2,3; Chen, Liang14; Chen, Lin8; Chen, Long8; Chen, M. J.1,3; Chen, M. L.1,3,6; Chen, Q. H.8; Chen, S. H.1,2,3; Chen, S. Z.1,3; Chen, T. L.15; Chen, Y.9; Cheng, N.1,3; Cheng, Y. D.1,3; Cui, M. Y.12; Cui, S. W.11; Cui, X. H.16; Cui, Y. D.17; Dai, B. Z.18; Dai, H. L.1,3,6; Dai, Z. G.7; Danzengluobu15; Volpe, D. della19; Dong, X. Q.1,2,3; Duan, K. K.12; Fan, J. H.10; Fan, Y. Z.12; Fang, J.18; Fang, K.1,3; Feng, C. F.20; Feng, L.12; Feng, S. H.1,3; Feng, X. T.20; Feng, Y. L.15; Gabici, S.21; Gao, B.1,3; Gao, C. D.20; Gao, L. Q.1,2,3; Gao, Q.15; Gao, W.1,3; Gao, W. K.1,2,3; Ge, M. M.18; Geng, L. S.1,3; Giacinti, G.13; Gong, G. H.22; Gou, Q. B.1,3; Gu, M. H.1,3,6; Guo, F. L.14; Guo, X. L.8; Guo, Y. Q.1,3; Guo, Y. Y.12; Han, Y. A.23; He, H. H.1,2,3; He, H. N.12; He, J. Y.12; He, X. B.17; He, Y.8; Heller, M.19; Hor, Y. K.17; Hou, B. W.1,2,3; Hou, C.1,3; Hou X(侯贤)24; Hu, H. B.1,2,3; Hu, Q.7,12; Hu, S. C.1,2,3; Huang, D. H.8; Huang, T. Q.1,3; Huang, W. J.17; Huang, X. T.20; Huang, X. Y.12; Huang, Y.1,2,3; Huang, Z. C.8; Ji, X. L.1,3,6; Jia, H. Y.8; Jia, K.20; Jiang, K.6,7; Jiang, X. W.1,3; Jiang, Z. J.18; Jin, M.8; Kang, M. M.25; Ke, T.1,3; Kuleshov, D.26; Kurinov, K.26; Li, B. B.11; Li, Cheng6,7; Li, Cong1,3; Li, D.1,2,3; Li, F.1,3,6; Li, H. B.1,3; Li, H. C.1,3; Li, H. Y.7,12; Li, J.7,12; Li, Jian7; Li, Jie1,3,6; Li, K.1,3; Li, W. L.20; Li, W. L.13; Li, X. R.1,3; Li, Xin6,7; Li, Y. Z.1,2,3; Li, Zhe1,3; Li, Zhuo27; Liang, E. W.28; Liang, Y. F.28; Lin, S. J.17; Liu, B.7; Liu, C.1,3; Liu, D.20; Liu, H.8; Liu, H. D.23; Liu, J.1,3; Liu, J. L.1,3; Liu, J. Y.1,3; Liu, M. Y.15; Liu, R. Y.9; Liu, S. M.8; Liu, W.1,3; Liu, Y.10; Liu, Y. N.22; Lu, R.18; Luo, Q.17; Lv, H. K.1,3; Ma, B. Q.27; Ma, L. L.1,3; Ma, X. H.1,3; Mao JR(毛基荣)24; Min, Z.1,3; Mitthumsiri, W.29; Mu, H. J.23; Nan, Y. C.1,3; Neronov, A.21; Ou, Z. W.17; Pang, B. Y.8; Pattarakijwanich, P.29; Pei, Z. Y.10; Qi, M. Y.1,3; Qi, Y. Q.11; Qiao, B. Q.1,3; Qin, J. J.7; Ruffolo, D.29; Sáiz, A.29; Semikoz, D.21; Shao, C. Y.17; Shao, L.11; Shchegolev, O.26,30; Sheng, X. D.1,3; Shu, F. W.31; Song, H. C.27; Stenkin, Yu. V.26,30; Stepanov, V.26; Su, Y.12; Sun, Q. N.8; Sun, X. N.28; Sun, Z. B.32; Tam, P. H. T.17; Tang, Q. W.31; Tang, Z. B.6,7; Tian, W. W.2,16; Wang, C.32; Wang, C. B.8; Wang, G. W.7; Wang, H. G.10; Wang, H. H.17; Wang JC(王建成)24; Wang, K.9; Wang, L. P.20; Wang, L. Y.1,3; Wang, P. H.8; Wang, R.20; Wang, W.17; Wang, X. G.28; Wang, X. Y.9; Wang, Y.8; Wang, Y. D.1,3; Wang, Y. J.1,3; Wang, Z. H.25; Wang, Z. X.18; Wang, Zhen13; Wang, Zheng1,3,6; Wei, D. M.12; Wei, J. J.12; Wei, Y. J.1,2,3; Wen, T.18; Wu, C. Y.1,3; Wu, H. R.1,3; Wu, S.1,3; Wu, X. F.12; Wu, Y. S.7; Xi, S. Q.1,3; Xia, J.7,12; Xia, J. J.8; Xiang, G. M.2,14; Xiao, D. X.11; Xiao, G.1,3; Xin, G. G.1,3; Xin, Y. L.8; Xing, Y.14; Xiong, Z.1,2,3; Xu, D. L.13; Xu, R. F.1,2,3; Xu, R. X.27; Xu, W. L.25; Xue, L.20; Yan, D. H.18; Yan, J. Z.12; Yan, T.1,3; Yang, C. W.25; Yang, F.11; Yang, F. F.1,3,6; Yang, H. W.17; Yang, J. Y.17; Yang, L. L.17; Yang, M. J.1,3; Yang, R. Z.7; Yang, S. B.18; Yao, Y. H.25; Yao, Z. G.1,3; Ye, Y. M.22; Yin, L. Q.1,3; Yin, N.20; You, X. H.1,3; You, Z. Y.1,2,3; Yu, Y. H.7; Yuan, Q.12; Yue, H.1,2,3; Zeng, H. D.12; Zeng, T. X.1,3,6; Zeng, W.18; Zha, M.1,3; Zhang, B. B.9; Zhang, F.8; Zhang, H. M.9; Zhang, H. Y.1,3; Zhang, J. L.16; Zhang, L. X.10; Zhang, Li18; Zhang, P. F.18; Zhang, P. P.7,12; Zhang, R.7,12; Zhang, S. B.2,16; Zhang, S. R.11; Zhang, S. S.1,3; Zhang, X.9; Zhang, X. P.1,3; Zhang, Y. F.8; Zhang, Yi1,12; Zhang, Yong1,3; Zhao, B.8; Zhao, J.1,3; Zhao, L.6,7; Zhao, L. Z.11; Zhao, S. P.12,20; Zheng, F.32; Zhou, B.1,3; Zhou, H.13; Zhou, J. N.14; Zhou, M.31; Zhou, P.9; Zhou, R.25; Zhou, X. X.8; Zhu, C. G.20; Zhu, F. R.8; Zhu, H.16; Zhu, K. J.1,2,3,6; Zuo, X.1,3
发表期刊PHYSICAL REVIEW LETTERS
2023-10-09
卷号131期号:15
DOI10.1103/PhysRevLett.131.151001
产权排序第24完成单位
收录类别SCI ; EI
摘要The diffuse Galactic gamma-ray emission, mainly produced via interactions between cosmic rays and the interstellar medium and/or radiation field, is a very important probe of the distribution, propagation, and interaction of cosmic rays in the Milky Way. In this Letter, we report the measurements of diffuse gamma rays from the Galactic plane between 10 TeV and 1 PeV energies, with the square kilometer array of the Large High Altitude Air Shower Observatory (LHAASO). Diffuse emissions from the inner (15 degrees< l < 125 degrees, |b| < 5 degrees) and outer (125 degrees < l < 235 degrees, |b| < 5 degrees) Galactic plane are detected with 29.1 sigma and 12.7 sigma significance, respectively. The outer Galactic plane diffuse emission is detected for the first time in the very- to ultra-high-energy domain (E > 10 TeV). The energy spectrum in the inner Galaxy regions can be described by a power-law function with an index of -2.99 +/- 0.04, which is different from the curved spectrum as expected from hadronic interactions between locally measured cosmic rays and the line-of-sight integrated gas content. Furthermore, the measured flux is higher by a factor of similar to 3 than the prediction. A similar spectrum with an index of -2.99 +/- 0.07 is found in the outer Galaxy region, and the absolute flux for 10 less than or similar to E less than or similar to 60 TeV is again higher than the prediction for hadronic cosmic ray interactions. The latitude distributions of the diffuse emission are consistent with the gas distribution, while the longitude distributions show clear deviation from the gas distribution. The LHAASO measurements imply that either additional emission sources exist or cosmic ray intensities have spatial variations.
资助项目Chengdu Management Committee of Tianfu New Area; National Key RAMP;D program of China[2018YFA0404202]; National Key RAMP;D program of China[2018YFA0404201]; National Key RAMP;D program of China[2018YFA0404203]; National Key RAMP;D program of China[2018YFA0404204]; National Natural Science Foundation of China[12220101003]; National Natural Science Foundation of China[12321003]; National Natural Science Foundation of China[12322302]; National Natural Science Foundation of China[12273114]; National Natural Science Foundation of China[12022502]; National Natural Science Foundation of China[12205314]; National Natural Science Foundation of China[12105301]; National Natural Science Foundation of China[12261160362]; National Natural Science Foundation of China[12105294]; National Natural Science Foundation of China[U1931201]; Project for Young Scientists in Basic Research of Chinese Academy of Sciences[YSBR-061]; Program for Innovative Talents and Entrepreneur in Jiangsu; National Science, Research and Innovation Fund (NSRF) of Thailand via the Program Management Unit for Human Resources AMP; Institutional Development, Research and Innovation[B37G660015]
项目资助者Chengdu Management Committee of Tianfu New Area ; National Key RAMP ; D program of China[2018YFA0404202, 2018YFA0404201, 2018YFA0404203, 2018YFA0404204] ; National Natural Science Foundation of China[12220101003, 12321003, 12322302, 12273114, 12022502, 12205314, 12105301, 12261160362, 12105294, U1931201] ; Project for Young Scientists in Basic Research of Chinese Academy of Sciences[YSBR-061] ; Program for Innovative Talents and Entrepreneur in Jiangsu ; National Science, Research and Innovation Fund (NSRF) of Thailand via the Program Management Unit for Human Resources AMP ; Institutional Development, Research and Innovation[B37G660015]
语种英语
学科领域天文学
文章类型Article
出版者AMER PHYSICAL SOC
出版地ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN0031-9007
URL查看原文
WOS记录号WOS:001102985000003
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
关键词[WOS]DISCOVERY ; SPECTRA ; ORIGIN ; PROTON
EI入藏号20240215329297
EI主题词Cosmic rays
EI分类号657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
引用统计
被引频次：27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/26543
专题星系类星体研究组
高能天体物理研究组
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, 610000 Chengdu, Sichuan, 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.State Key Laboratory of Particle Detection and Electronics, 230026 Hefei, China;
7.University of Science and Technology of China, 230026 Hefei, Anhui, China;
8.School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China;
9.School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, China;
10.Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, China;
11.Hebei Normal University, 050024 Shijiazhuang, Hebei, China;
12.Key Laboratory of Dark Matter and Space Astronomy & Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210023 Nanjing, Jiangsu, China;
13.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, China;
14.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, China;
15.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, 850000 Lhasa, Tibet, China;
16.National Astronomical Observatories, Chinese Academy of Sciences, 100101 Beijing, China;
17.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, China;
18.School of Physics and Astronomy, Yunnan University, 650091 Kunming, Yunnan, China;
19.Département de Physique Nucléaire et Corpusculaire, Faculté de Sciences, Université de Genève, 24 Quai Ernest Ansermet, 1211 Geneva, Switzerland;
20.Institute of Frontier and Interdisciplinary Science, Shandong University, 266237 Qingdao, Shandong, China;
21.APC, Université Paris Cité, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, 119 75205 Paris, France;
22.Department of Engineering Physics, Tsinghua University, 100084 Beijing, China;
23.School of Physics and Microelectronics, Zhengzhou University, 450001 Zhengzhou, Henan, China;
24.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, China;
25.College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China;
26.Institute for Nuclear Research of Russian Academy of Sciences, 117312 Moscow, Russia;
27.School of Physics, Peking University, 100871 Beijing, China;
28.School of Physical Science and Technology, Guangxi University, 530004 Nanning, Guangxi, China;
29.Department of Physics, Faculty of Science, Mahidol University, 10400 Bangkok, Thailand;
30.Moscow Institute of Physics and Technology, 141700 Moscow, Russia;
31.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, China;
32.National Space Science Center, Chinese Academy of Sciences, 100190 Beijing, China
推荐引用方式
GB/T 7714		 Cao, Zhen,Aharonian, F.,An, Q.,et al. Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A[J]. PHYSICAL REVIEW LETTERS,2023,131(15).
APA Cao, Zhen.,Aharonian, F..,An, Q..,Axikegu.,Bai, Y. X..,...&Zuo, X..(2023).Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A.PHYSICAL REVIEW LETTERS,131(15).
MLA Cao, Zhen,et al."Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A".PHYSICAL REVIEW LETTERS 131.15(2023).
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