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Fig. 6.

image

Evolution of the shell calculated by the RING code; cuts are in the galactic plane (10, 30, 50, 70, 90, 110 and 130 Myr; left panel), dashed lines correspond to the model without the galactic potential, solid lines show the model with the potential. Right panel: evolutionary time 50 Myr for different models: homogeneous medium (black), homogeneous medium with 5x larger energy input (grey), Gaussian density disc with scale heights of 500 pc (blue), 300 pc (green), 200 pc (brown) and 100 pc (red). Dashed and dotted lines show the situation without the galactic potential, solid lines the situation with the galactic potential. Axes are labelled in kpc.

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