Fig. 7
Maps of the line-of-sight velocity (left panel) and velocity dispersion (right panel) of the gas in NGC 4650A. The cross marks the centre of the galaxy where rotation is V = 2880 ± 19 km s-1 and velocity dispersion is σ = 100 ± 20 km s-1. In the left panel, the dashed and dotted arcs trace the structure of the spiral arms, as in Fig. 1.
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