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Fig. 10


Ages of OB associations in IC 1613. North is left and east is down. The association perimeters are plotted over the INT-WFC RGB image of IC 1613 (same field shown as in Fig. 9 of Paper I), with the age indicated by the contour colors. Since most associations exhibit age dispersion, the left panel shows the age of the youngest association members, and the right panel the age of the older members. Color–code is: cyan log age = 5.9, blue log age = 6.2, dark green log age = 6.5, light green log age = 6.8, yellow log age = 7.1, orange log age = 7.4, red log age = 7.7, violet log age = 8.0. The largest concentration of young associations is found in the bubble region of the galaxy in the NE lobe.

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