313 citations · 2.6k across the 55 of their papers we have counts for
6 papers · 2 filters
Open questions with ultra-high energy cosmic rays
Pasquale Blasi
We briefly discuss three aspects related to the origin of ultra-high energy cosmic rays (UHECRs) namely: 1) particle acceleration in astrophysical sources; 2) transition to an extr…
Gamma rays from molecular clouds
Stefano Gabici, Felix Aharonian, Pasquale Blasi
It is believed that the observed diffuse gamma ray emission from the galactic plane is the result of interactions between cosmic rays and the interstellar gas. Such emission can be…
Ultra High Energy Cosmic Rays
Pasquale Blasi
The origin of the particles in the highest energy end of the cosmic ray spectrum is discussed in the context of the wider problem of the origin of the whole cosmic radiation as obs…
A dip in the UHECR spectrum and the transition from galactic to extragalactic cosmic rays
R. Aloisio, V. Berezinsky, P. Blasi +3
The dip is a feature in the diffuse spectrum of ultra-high energy (UHE) protons caused by electron-positron pair production on the cosmic microwave background (CMB) radiation. For…
Non linear particle acceleration at non-relativistic shock waves in the presence of self-generated turbulence
Elena Amato, Pasquale Blasi
Particle acceleration at astrophysical shocks may be very efficient if magnetic scattering is self-generated by the same particles. This nonlinear process adds to the nonlinear mod…
Small Scale Anisotropy Predictions for the Auger Observatory
Daniel De Marco, Pasquale Blasi, Angela V. Olinto
We study the small scale anisotropy signal expected at the Pierre Auger Observatory in the next 1, 5, 10, and 15 years of operation, from sources of ultra-high energy (UHE) protons…