Fig. 11

Column density snapshots of the ionization of a turbulent medium at Mach 1 and Mach 4 (see Tremblin et al. 2012b). The boxes are cubes of 4 pc side at a resolution of 0.01 pc per cell. The initial conditions are a mean density of 500 cm-3 and a ionizing flux of 109 Lyc photons s-1 cm-2 coming from the top of the boxes. Top: before the ionization is introduced. Bottom: after 1 My.
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