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Fig. A.1.

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Normalized reduced spectrum, E δ z ( k ) / 0 v A , 0 2 $ E_{\delta z}(k_\perp)/\ell_0 v_{\rm A,0}^2 $, vs. fluctuation perpendicular wave-vector, k0, in a plasma with Lunquist number S0 = 1014 and sub-Alfvénic (MA, 0 = 0.1, left) or super-Aflvénic (MA, 0 = 10, right) injection regimes. The different colors represent different cascading regimes (see legend), and general expressions for transition scales and fluctuation power level are reported on the right and upper axis. The solid lines show ideal scaling from (A.34), (A.36), (A.38), and (A.40) for the nominal range 0 1 k λ , diss 1 $ \ell_0^{-1}\lesssim k_\perp\lesssim \lambda_{\perp,\mathrm{diss}}^{-1} $, while the dashed lines represent their extension in the dissipation range with a damping factor exp ( k 2 λ , diss 2 ) $ \sim\exp(-k_{\perp}^{2}\lambda_{\perp,\mathrm{diss}}^2) $.

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