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Fig. 3
Column density contours (black) are overlaid on the 12CO J = 2 − 1 intensity-weighted velocity maps (first moment). Contours here are plotted from 6.3 × 1021 to 5.7 × 1022 with a spacing of 6.3 × 1021 (10% to 90% spaced with 10% interval of the maximum). The white circle marks the location of the stellar cluster NGC 1579.
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