Gamma-Rays from Heavy Nuclei Accelerated in Supernova Remnants

Details Gamma-Rays from Heavy Nuclei Accelerated in Supernova Remnants Gamma-Rays from Heavy Nuclei Accelerated in Supernova Remnants

2010-11-30

arxiv.org/abs/1011.6527v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

To appear on the proceedings of ICATPP Conference on Cosmic Rays for Particle and Astroparticle Physics, Villa Olmo, Como 7-8

Scientific paper

We investigate the theoretical and observational implications of the acceleration of protons and heavier nuclei in supernova remnants (SNRs). By adopting a semi-analytical technique, we study the non-linear interplay among particle acceleration, magnetic field generation and shock dynamics, outlining a self-consistent scenario for the origin of the spectrum of Galactic cosmic rays as produced in this class of sources. Moreover, the inferred chemical abundances suggest nuclei heavier than Hydrogen to be relevant not only in the shock dynamics but also in the calculation of the gamma-ray emission from SNRs due to the decay of neutral pions produced in nuclear interactions.

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