Radio galaxies and the origin of ultra-high energy cosmic rays

Details Radio galaxies and the origin of ultra-high energy cosmic rays Radio galaxies and the origin of ultra-high energy cosmic rays

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007nuphs.165..130m&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 165, p. 130-136.

Physics

Nuclear Physics

1

Scientific paper

Among the possible sources of ultra-high energy cosmic rays are the hot-spots of Fanaroff-Rlley II radio galaxies. These regions meet the requirements of size, magnetic field intensity and presence of strong shocks for accelerating particles up to energies that exceed 1021 eV. On the other hand, the interaction with the photons of the Cosmic Microwave Background radiation, the Greisen-Zatsepin-Kuz'min effect, dictates that the sources of particles with energy above 4×10 eV must be within 130 Mpc, at most. There are not very many FR II radio galaxies within this distance, i.e. 15 objects. Once the statistics of events for detection of cosmic rays at these energies will have reached reasonable levels (see the Pierre Auger Experiment [J.W. Cronin, Nucl. Phys. B 138 (2005) 465]), looking for the arrival directions will either confirm or rule out the role of FR II hot-spots as sources of ultra-high energy cosmic rays.

Affiliated with

Also associated with

No associations

Rating

Radio galaxies and the origin of ultra-high energy cosmic rays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Radio galaxies and the origin of ultra-high energy cosmic rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio galaxies and the origin of ultra-high energy cosmic rays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1839687