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

Amenomori, M; Bao, Y W; Bi, X J; Chen, D; Chen, T L; Chen, W Y; Chen, Xu; Chen, Y; Cui, S W; Ding, L K; Fang, J H; Fang, K; Feng, C F; Feng, Zhaoyang; Feng, Z Y; Gao, Qi; Gou, Q B; Guo, Y Q; Guo, Y Y; He, H H; He, Z T; Hibino, K; Hotta, N; Hu, Haibing; Hu, H B; Huang, J; Jia, H Y; Jiang, L; Jin, H B; Kasahara, K; Katayose, Y; Kato, C; Kato, S; Kawata, K; Kihara, W; Ko, Y; Kozai, M; Le, G M; Li, A F; Li, H J; Li, W J; Lin, Y H; Liu, B; Liu, C; Liu, J S; Liu, M Y; Liu, W; Lou, Y-Q; Lu, H; Meng, X R

Amenomori, M; Bao, Y W; Bi, X J; Chen, D; Chen, T L; Chen, W Y; Chen, Xu; Chen, Y; Cui, S W; Ding, L K; Fang, J H; Fang, K; Feng, C F; Feng, Zhaoyang; Feng, Z Y; Gao, Qi; Gou, Q B; Guo, Y Q; Guo, Y Y; He, H H; He, Z T; Hibino, K; Hotta, N; Hu, Haibing; Hu, H B; Huang, J; Jia, H Y; Jiang, L; Jin, H B; Kasahara, K; Katayose, Y; Kato, C; Kato, S; Kawata, K; Kihara, W; Ko, Y; Kozai, M; Le, G M; Li, A F; Li, H J; Li, W J; Lin, Y H; Liu, B; Liu, C; Liu, J S; Liu, M Y; Liu, W; Lou, Y-Q; Lu, H; Meng, X R.

Afiliação

Amenomori M; Department of Physics, Hirosaki University, Hirosaki 036-8561, Japan.
Bao YW; School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China.
Bi XJ; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Chen D; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China.
Chen TL; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Chen WY; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Chen X; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Chen Y; School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China.
Cirennima; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Cui SW; Department of Physics, Hebei Normal University, Shijiazhuang 050016, China.
Danzengluobu; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Ding LK; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Fang JH; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Fang K; University of Chinese Academy of Sciences, Beijing 100049, China.
Feng CF; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Feng Z; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China.
Feng ZY; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Gao Q; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China.
Gou QB; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Guo YQ; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Guo YY; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
He HH; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
He ZT; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Hibino K; Department of Physics, Hebei Normal University, Shijiazhuang 050016, China.
Hotta N; Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan.
Hu H; Faculty of Education, Utsunomiya University, Utsunomiya 321-8505, Japan.
Hu HB; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Huang J; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Jia HY; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Jiang L; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China.
Jin HB; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Kasahara K; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China.
Katayose Y; Faculty of Systems Engineering, Shibaura Institute of Technology, Omiya 330-8570, Japan.
Kato C; Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan.
Kato S; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan.
Kawata K; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan.
Kihara W; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan.
Ko Y; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan.
Kozai M; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan.
Labaciren; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara 252-5210, Japan.
Le GM; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Li AF; National Center for Space Weather, China Meteorological Administration, Beijing 100081, China.
Li HJ; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Li WJ; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China.
Lin YH; School of Information Science and Engineering, Shandong Agriculture University, Taian 271018, China.
Liu B; Physics Department of Science School, Tibet University, Lhasa 850000, China.
Liu C; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Liu JS; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China.
Liu MY; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Liu W; University of Chinese Academy of Sciences, Beijing 100049, China.

Phys Rev Lett ; 126(14): 141101, 2021 Apr 09.

Article em En | MEDLINE | ID: mdl-33891464

ABSTRACT

ABSTRACT

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 π^{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.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Diagnostic_studies Idioma: En Revista: Phys Rev Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Japão

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