Fig. 2.
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CO(3−2) (νrest = 346 GHz, λrest = 867 μm, left panels) and CO(6−5) (νrest = 691 GHz, λrest = 434 μm, right panels) moment maps. Top row: the total integrated line emission (moment 0) maps are shown; in the middle row, the velocity (moment 1) maps are displayed; the bottom row shows the velocity dispersion (moment 2). The green/grey contours in all panels are for the 345 GHz continuum as in Fig. 1. The cyan arrow in the top left panel marks the ridge-like structure discussed in the text.
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