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Fig. 4


Comparing loop structures formed by combining loops of different order for mass ratios of 3. The left panel shows the first and second loops (model M3L23), the second panel shows the third and fourth loops (model M3L34), while the first loop appears at the bottom of the galaxy and becomes diluted. The size of each panel is 300 by 300 kpc. The loop stellar surface mass densities are consistent with observations from M08. In all these images the threshold has been chosen slightly below the observed one from M08.

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