Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..745...80b&link_type=abstract
HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy. AIP Conference Proceedings, Vo
Astronomy and Astrophysics
Astronomy
Supernova Remnants, Cosmic Rays, Gamma-Ray Sources, Gamma-Ray Bursts
Scientific paper
We analyse the results of the nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) in order to describe their relevant properties: the remnant dynamics and the characteristics of nonthermal emission produced by CRs. It is shown that the theory fits the existing data in a satisfactory way and that the magnetic field in the SNRs is significantly amplified due to efficiently accelerating nuclear CR component. >From the fact that magnetic field amplification occurs in all the young SNRs for which relevant data exist, and given the strong theoretical connection between magnetic field amplification and efficient acceleration of nuclear CRs, we tentatively conclude that the Galactic SNRs are the source population of the Galactic CRs. Due to high interior magnetic field in young SNRs the π0-decay γ-rays generated by the nuclear CR component as a rule dominates over γ-rays, generated by electron CR component, and calculated γ-ray flux fits existed data.
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