Production of Magnetic Turbulence by Cosmic Rays Drifting Upstream of Supernova Remnant Shocks
The Astrophysical Journal2008Vol. 684(2), pp. 1174–1189
Citations Over TimeTop 1% of 2008 papers
Abstract
We present results of 2D and 3D PIC simulations of magnetic turbulence production by isotropic cosmic-ray ions drifting upstream of SNR shocks. The studies aim at testing recent predictions of a strong amplification of short wavelength magnetic field and at studying the evolution of the magnetic turbulence and its backreaction on cosmic rays. We observe that an oblique filamentary mode grows more rapidly than the non-resonant parallel modes found in analytical theory, and the growth rate of the field perturbations is much slower than is estimated for the parallel plane-wave mode, possibly because in our simulations we cannot maintain omega > B0 has not been demonstrated yet.
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