EPJ Web Conf.
Volume 145, 2017ISVHECRI 2016 – XIX International Symposium on Very High Energy Cosmic Ray Interactions
|Number of page(s)||7|
|Published online||26 June 2017|
Very high energy emission sources beyond the Galaxy
P. N. Lebedev Physical Institute, Russian Academy of Science, Russia
a e-mail: email@example.com
Published online: 26 June 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 800 GeV–100 TeV. The data from SHALON observations are compared with those from other experiments at high and very high energies.
© The Authors, published by EDP Sciences 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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