6 citations · 11 across the 5 of their papers we have counts for
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Some Current Theoretical Issues around Ultra-High Energy Cosmic Rays
Guenter Sigl
We address some current theoretical issues around ultra-high energy cosmic rays. We recall that scenarios producing more gamma-rays than cosmic rays up to high redshift can in gene…
Ultra-High Energy Cosmic Rays from Quasar Remnants
C. Isola, G. Sigl, G. Bertone
One of the models recently proposed to explain the origin of the ultra high energy cosmic rays assumes that these particles may be accelerated by the electromotive force around pre…
Signatures of Magnetized Large Scale Structure in Ultra-High Energy Cosmic Rays
Guenter Sigl, Francesco Miniati, Torsten Ensslin
We investigate the impact of a structured universe in the multi-pole moments, auto-correlation function, and cluster statistics of cosmic rays above 10^19 eV. We compare structured…
Gravitational Effects on Particle Dark Matter and Indirect Detection
Guenter Sigl, Gianfranco Bertone
The annihilation signal of particle dark matter can be strongly enhanced in over-dense regions such as close to the Galactic centre. We summarize some of our recent results on flux…
Introduction to Cosmic Rays
Peter Biermann, Guenter Sigl
Energetic particles, traditionally called Cosmic Rays, were discovered nearly a hundred years ago, and their origin is still uncertain. Their main constituents are the normal nucle…
Particle and Astrophysics Aspects of Ultrahigh Energy Cosmic Rays
Guenter Sigl
The origin of cosmic rays is one of the major unresolved astrophysical questions. In particular, the highest energy cosmic rays observed possess macroscopic energies and their orig…