Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..801..382m&link_type=abstract
ASTROPHYSICAL SOURCES OF HIGH ENERGY PARTICLES AND RADIATION. AIP Conference Proceedings, Volume 801, pp. 382-384 (2005).
Astronomy and Astrophysics
Astrophysics
Cosmic Ray Propagation, Shock Waves, Monte Carlo Methods, Cosmic Rays
Scientific paper
The particle shock acceleration at super-luminal shocks is discussed by performing Monte Carlo calculations. Upstream flow Lorentz gamma factors are used ranging from 10 up to 1000 which could be relevant to models of relativistic astrophysical environments like Active Galactic Nuclei jets and Gamma Ray Burst sites. The behavior of the particles spectral shape irregularities is discussed in connection with the upstream Lorentz gamma flow, the magnetic field inclinations and different scattering models. These different conditions prescribed, allow for differences in the spectral shape behavior and energy gain which help to understand the limitations or not of the first order Fermi acceleration, the contribution to the cosmic ray spectrum and the consequent ν and γ fluxes.
Meli Athina
Quenby John J.
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