Spectrum of Galactic Cosmic Rays Accelerated in Supernova Remnants

Details Spectrum of Galactic Cosmic Rays Accelerated in Supernova Remnants Spectrum of Galactic Cosmic Rays Accelerated in Supernova Remnants

2010-05-31

arxiv.org/abs/1006.0034v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 3 figures, accepted to ApJ

Scientific paper

The spectra of high-energy protons and nuclei accelerated by supernova remnant shocks are calculated taking into account magnetic field amplification and Alfvenic drift both upstream and downstream of the shock for different types of supernova remnants during their evolution. The maximum energy of accelerated particles may reach $5\cdot10^{18}$ eV for Fe ions in Type IIb SNRs. The calculated energy spectrum of cosmic rays after propagation through the Galaxy is in good agreement with the spectrum measured at the Earth.

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