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Fig. 8

image

Close-up of the emission from the inner ring in the central velocities of the 12CO J = 3−2 ALMA map (see Fig. 5). The field of view is the central 10′′ × 10′′. The intensity scale of the contours is logarithmic, with first contour at 40 mJy beam-1, and a step of 3 dB (i.e. a factor of 100.3 ≃ 2) between adjacent contours. The background is an HST F673N image for comparison purposes.

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