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Fig. 19

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Vertical velocity dispersion σɀ in the CMZ ring in the CHEM_MHD (top) and CHEM_HD (bottom) simulations at t = l86Myr. The velocity dispersion in the dense gas ring is much larger in the magnetised simulation than in the unmagnetised one due to the MRI-driven turbulence. Only regions with surface density Σ > 100 Mpc−2 are shown. The velocity dispersion is calculated using cubical bins 20 pc on-a-side as in Fig. 18.

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