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Fig. 13

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Position on sky of stars in the CrA-complex at present (upper panel) and 3.72 Myr ago (lower panel) relative to the center of CrA North. As labeled, red open squares are members of CrA-North, blue filled circles are members of CrA-Main (only members older than 3.72 Myr are shown in the bottom panel). In the bottom panel, the thick green circle is the average position of the CrA-Main cloud 3.72 Myr ago. The black asterisks are the positions of stars older than 10 Myr. The magenta square represents the expected location for the possible precursor of the SN that might have given the observed kick to the progenitor cloud of CrA-Main, with the dashed black line representing alternative locations. The dashed lines at the bottom right indicate the direction of the Lupus and Upper Scorpius complexes. The orientation of galactic coordinates is also plotted as dotted lines for reference.

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