Particle acceleration in shocks: the effect of finite cosmic-ray pressure on the energy distribution

Abstract

The spectrum of Fermi-accelerated cosmic rays in shock fronts is discussed in a perturbation expansion, to take account of the effect of the cosmic-ray pressure on the shock structure and acceleration. The perturbation to the steady-state test-particle distribution is calculated when the cosmic-ray pressure is small compared with the ram pressure of the incoming gas.

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DOI

10.1093/mnras/204.3.699

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