Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984afz....21..275a&link_type=abstract
(Astrofizika, vol. 21, Sept.-Oct. 1984, p. 275-281) Astrophysics (ISSN 0571-7132), vol. 20, no. 5, March 1985, p. 499-503. Trans
Astronomy and Astrophysics
Astrophysics
1
Active Galaxies, Cosmic Rays, Energetic Particles, Energy Dissipation, Energy Spectra, Galactic Nuclei, X Ray Sources, Black Body Radiation, Chemical Composition, Electron-Positron Pairs, Heao 1, High Energy Interactions
Scientific paper
Energy loss of the proton-nucleus component of super-high-energy cosmic rays in active galaxies is investigated theoretically. The rate of energy loss due to two main physical mechanisms, pion photoproduction and the production of electron-positron pairs, is calculated, and the results are given in graphic form. Estimates of the proton mean free path in the nucleus of the active galaxy NGC 4151 are also given.
Agaronian F. A.
Ambartsumian A. S.
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