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

Autor: 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.; University of Chinese Academy of Sciences, Beijing 100049, China., Fang K; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Feng CF; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China., Feng Z; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Feng ZY; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China., Gao Q; Physics Department of Science School, Tibet University, Lhasa 850000, China., Gou QB; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, 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; Department of Physics, Hebei Normal University, Shijiazhuang 050016, China., Hibino K; Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan., Hotta N; Faculty of Education, Utsunomiya University, Utsunomiya 321-8505, Japan., Hu H; Physics Department of Science School, Tibet University, Lhasa 850000, China., Hu HB; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Huang J; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Jia HY; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China., Jiang L; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Jin HB; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China., Kasahara K; Faculty of Systems Engineering, Shibaura Institute of Technology, Omiya 330-8570, Japan., Katayose Y; Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan., Kato C; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan., Kato S; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Kawata K; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Kihara W; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan., Ko Y; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan., Kozai M; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara 252-5210, Japan., Labaciren; Physics Department of Science School, Tibet University, Lhasa 850000, China., Le GM; National Center for Space Weather, China Meteorological Administration, Beijing 100081, China., Li AF; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China.; School of Information Science and Engineering, Shandong Agriculture University, Taian 271018, China., Li HJ; Physics Department of Science School, Tibet University, Lhasa 850000, China., Li WJ; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China., Lin YH; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.; University of Chinese Academy of Sciences, Beijing 100049, China., Liu B; Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China., Liu C; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Liu JS; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Liu MY; Physics Department of Science School, Tibet University, Lhasa 850000, China., Liu W; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Lou YQ; Department of Physics and Tsinghua Centre for Astrophysics (THCA), Tsinghua University, Beijing 100084, China.; Tsinghua University-National Astronomical Observatories of China (NAOC) Joint Research Center for Astrophysics, Tsinghua University, Beijing 100084, China.; Department of Astronomy, Tsinghua University, Beijing 100084, China., Lu H; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Meng XR; Physics Department of Science School, Tibet University, Lhasa 850000, China., Munakata K; Department of Physics, Shinshu University, Matsumoto 390-8621, Japan., Nakada H; Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan., Nakamura Y; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Nanjo H; Department of Physics, Hirosaki University, Hirosaki 036-8561, Japan., Nishizawa M; National Institute of Informatics, Tokyo 101-8430, Japan., Ohnishi M; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Ohura T; Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan., Ozawa S; National Institute of Information and Communications Technology, Tokyo 184-8795, Japan., Qian XL; Department of Mechanical and Electrical Engineering, Shandong Management University, Jinan 250357, China., Qu XB; College of Science, China University of Petroleum, Qingdao, 266555, China., Saito T; Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan., Sakata M; Department of Physics, Konan University, Kobe 658-8501, Japan., Sako TK; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Shao J; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China., Shibata M; Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan., Shiomi A; College of Industrial Technology, Nihon University, Narashino 275-8575, Japan., Sugimoto H; Shonan Institute of Technology, Fujisawa 251-8511, Japan., Takano W; Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan., Takita M; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Tan YH; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Tateyama N; Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan., Torii S; Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan., Tsuchiya H; Japan Atomic Energy Agency, Tokai-mura 319-1195, Japan., Udo S; Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan., Wang H; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Wu HR; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Xue L; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China., Yamamoto Y; Department of Physics, Konan University, Kobe 658-8501, Japan., Yang Z; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Yokoe Y; Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan., Yuan AF; Physics Department of Science School, Tibet University, Lhasa 850000, China., Zhai LM; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China., Zhang HM; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Zhang JL; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Zhang X; School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China., Zhang XY; Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao 266237, China., Zhang Y; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Zhang Y; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210034, China., Zhang Y; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Zhao SP; Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China., Zhaxisangzhu; Physics Department of Science School, Tibet University, Lhasa 850000, China., Zhou XX; Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2021 Apr 09; Vol. 126 (14), pp. 141101.
DOI: 10.1103/PhysRevLett.126.141101
Abstrakt: 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.
Databáze: MEDLINE