Active Galactic Nuclei with Starburst: Sources for Ultra High Energy Cosmic Rays
Megjelenés dátuma: 2009
MTMT: 1283114
WoS ID: 000271220300019
Scopus ID: 70350551967
Absztrakt:
Ultra high energy cosmic ray events presently show a spectrum,
which we interpret here as galactic cosmic rays due to a
starburst, in the radio galaxy Cen A which is pushed up in
energy by the shock of a relativistic jet. The knee feature and
the particles with energy immediately higher in galactic cosmic
rays then turn into the bulk of ultra high energy cosmic rays.
This entails that all ultra high energy cosmic rays are heavy
nuclei. This picture is viable if the majority of the observed
ultra high energy events come from the radio galaxy Cen A, and
are scattered by intergalactic magnetic fields across much of
the sky. © 2009 World Scientific Publishing Company.