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Fig. 3


HVC model with an initial gas mass of Mgas = 4.4 × 105   M (Setup 2-DD): color-coded pressure distribution (logarithmic scale [dyne cm-2]) through the midplane (z = 0) of the 3D simulation box overlaid with Hi column density contours between log (NHI) = 18.5...21.5   cm-2 in steps of 0.5 dex, 100 Myr after the onset. Upper left panel: cloud without DM  (Run VI), upper right panel: cloud embedded in an NFW halo (see Sect. 4.3.3); lower panels: clouds with Burkert halos with r0 = 150   pc (Run VII, left panel) and r0 = 250   pc (Run IX, right panel), respectively. The red contour depicts the (Ekin + Ei) = −Epot boundary and encloses all material, both from the cloud and from the hot halo gas, which is gravitationally bound to the HVC. The velocity vectors indicate a maximum velocity of 215  km s-1 and their lengths are linearly scaled.

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