Fig. 1.

Magnetization of the downstream region of SNR shocks as a function of shock velocity. The data points are from Vink (2012). The lines refer to the growth of nonresonant modes with an injection spectrum with slope α = 4 (solid red) and α = 4.3 (dotted red) and to the recipe adopted by Diesing & Caprioli (2019; dashed green), which is independent of the spectrum of accelerated particles.
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