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Fig. 7.

image

Top: space-time diagram showing the column density as a function of time and x, in 2D axisymmetric turbulent simulations, for different magnetisation (left to right, μeq = 10−4,  10−3 and 10−2). The density is integrated within z ± 1.5H and runs were computed in the ideal limit (without explicit magnetic diffusion). Bottom panels: for each run, time-evolution of , normalised projection of Bz onto the prominent axisymmetric Fourier mode (with largest amplitude). This mode corresponds respectively to kx = 6, 4 and 2kx0 for μeq = 10−4,  10−3 and 10−2, with kx0 = 2π/Lx the fundamental box radial wavenumber.

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