CO moment maps of UGC 2885 from the IRAM datacube. Top: Moment-0 (integrated intensity) map. Middle: Moment-1 (intensity-weighted velocity) map. Bottom: Moment-2 (square root of the intensity-weighted dispersion, or line width) map. The dashed box in all panels highlights the central region. The box is $1\stackrel{\prime }{.}2$ in length, $0\stackrel{\prime }{.}5$ in width, and is positioned at the central pixel of the image. The central distribution of molecular gas is discussed further in Sect. 6.9. The blue box represents the edges of the CO(1−0) datacube. The dashed red circle is the IRAM beam size.