First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies

被引：144

作者：

Amenomori, M. ^{[1
]}

Bao, Y. W. ^{[2
]}

Bi, X. J. ^{[3
]}

Chen, D. ^{[4
]}

Chen, T. L. ^{[5
]}

Chen, W. Y. ^{[3
]}

Chen, Xu ^{[3
]}

Chen, Y. ^{[2
]}

Cirennima ^{[5
]}

Cui, S. W. ^{[6
]}

Danzengluobu ^{[5
]}

Ding, L. K. ^{[3
]}

Fang, J. H. ^{[3
,7
]}

Fang, K. ^{[3
]}

Feng, C. F. ^{[8
,9
]}

Feng, Zhaoyang ^{[3
]}

Feng, Z. Y. ^{[10
]}

Gao, Qi ^{[5
]}

Gou, Q. B. ^{[3
]}

Guo, Y. Q. ^{[3
]}

Guo, Y. Y. ^{[3
]}

He, H. H. ^{[3
]}

He, Z. T. ^{[6
]}

Hibino, K. ^{[11
]}

Hotta, N. ^{[12
]}

Hu, Haibing ^{[5
]}

Hu, H. B. ^{[3
]}

Huang, J. ^{[3
]}

Jia, H. Y. ^{[10
]}

Jiang, L. ^{[3
]}

Jin, H. B. ^{[4
]}

Kasahara, K. ^{[13
]}

Katayose, Y. ^{[14
]}

Kato, C. ^{[15
]}

Kato, S. ^{[16
]}

Kawata, K. ^{[16
]}

Kihara, W. ^{[15
]}

Ko, Y. ^{[15
]}

Kozai, M. ^{[17
]}

Labaciren ^{[5
]}

Le, G. M. ^{[18
]}

Li, A. F. ^{[3
,8
,9
,19
]}

Li, H. J. ^{[5
]}

Li, W. J. ^{[3
,10
]}

Lin, Y. H. ^{[3
,7
]}

Liu, B. ^{[20
]}

Liu, C. ^{[3
]}

Liu, J. S. ^{[3
]}

Liu, M. Y. ^{[5
]}

Liu, W. ^{[3
]}

机构：

[1] Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan

[2] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[4] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

[5] Tibet Univ, Phys Dept Sci Sch, Lhasa 850000, Peoples R China

[6] Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Hebei, Peoples R China

[7] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[8] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China

[9] Shandong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Qingdao 266237, Peoples R China

[10] SouthWest Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China

[11] Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan

[12] Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan

[13] Shibaura Inst Technol, Fac Syst Engn, Omiya, Saitama 3308570, Japan

[14] Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan

[15] Shinshu Univ, Dept Phys, Matsumoto, Nagano 3908621, Japan

[16] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[17] Japan Aerosp Explorat Agcy ISAS JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan

[18] China Meteorol Adm, Natl Ctr Space Weather, Beijing 100081, Peoples R China

[19] Shandong Agr Univ, Sch Informat Sci & Engn, Tai An 271018, Shandong, Peoples R China

[20] Univ Sci & Technol China, Sch Phys Sci, Dept Astron, Hefei 230026, Anhui, Peoples R China

[21] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[22] Tsinghua Univ, Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China

[23] Tsinghua Univ, Tsinghua Univ Natl Astron Observ China NAOC Joint, Beijing 100084, Peoples R China

[24] Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China

[25] Natl Inst Informat, Tokyo 1018430, Japan

[26] Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan

[27] Shandong Management Univ, Dept Mech & Elect Engn, Jinan 250357, Peoples R China

[28] China Univ Petr, Coll Sci, Qingdao 266555, Peoples R China

[29] Tokyo Metropolitan Coll Ind Technol, Tokyo 1168523, Japan

[30] Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan

[31] Nihon Univ, Coll Ind Technol, Narashino, Chiba 2758575, Japan

[32] Shonan Inst Technol, Fujisawa, Kanagawa 2518511, Japan

[33] Waseda Univ, Res Inst Sci & Engn, Tokyo 1698555, Japan

[34] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[35] Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210034, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 14期

基金：

日本学术振兴会; 国家重点研发计划; 中国国家自然科学基金;

关键词：

FERMI-LAT; EMISSION; PLANE; CONSTRAINTS; SPECTRUM;

D O I：

10.1103/PhysRevLett.126.141101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report, for the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk. Particularly, all gamma rays above 398 TeV are observed apart from known TeV gamma-ray sources and compatible with expectations from the hadronic emission scenario in which gamma rays originate from the decay of pi(0)'s produced through the interaction of protons with the interstellar medium in the Galaxy. This is strong evidence that cosmic rays are accelerated beyond PeV energies in our Galaxy and spread over the Galactic disk.

引用

页数：7

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