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astro-ph2003★ 2 cited
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…
hep-ph2003★ 27 cited
Gamma rays from the Galactic bulge and large extra dimensions
Michel Casse, Jacques Paul, Gianfranco Bertone +1
An intriguing feature of extra dimensions is the possible production of Kaluza--Klein gravitons by nucleon-nucleon bremsstrahlung in the course of core collapse of massive stars, a…
astro-ph2003
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…