Very high energy emission sources beyond the Galaxyстатья

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[1] Very high energy emission sources beyond the galaxy / V. G. Sinitsyna, M. S. Andreeva, K. A. Balygin et al. // EPJ Web of Conferences. — Vol. 145 of Proceedings of the XXIII International Workshop “High Energy Physics and Quantum Field Theory” (QFTHEP 2017). — EPJ Web of Conferences, 2017. Active Galactic Nuclei (AGN) are considered as potential extragalactic sources of very and ultra high energy cosmic rays. According to theoretical predictions cosmic ray acceleration can take place at the shock created by the expanding cocoons around active galactic nuclei as well as at AGN jets. The measurements of AGN TeV spectra, the variability time scale of TeV emission can provide essential information on the dynamics of AGN jets, the localization of acceleration region and an estimation of its size. SHALON observations yielded data on extragalactic sources of different AGN types in the energy range of 800GeV–100TeV. The data from SHALON observations are compared with those from other experiments at high and very high energies. [ DOI ]

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