CO(5–4) spectra across the SE galaxy, in steps of 0.4″ in Dec. The tilted dashed line indicates how the two line components, at +110 km s^-1 in the north, and –70 km s^-1 in the south, cause the line centroid to shift relative to zero velocity (dashed vertical line through center of the spectra), in going from north to south (top to bottom). Position offsets in arcsec (Δα,Δδ, upper left of each panel), are relative to the map phase center at RA 12:05:23.11, Dec –07:42:32.10 (J2000). Velocity offsets (horizontal axes) run from –1200 to +1200 km s^-1 relative to 101.190 GHz (z = 4.6949). The beam is 1.6″ × 0.7″ at PA 15°. Channel widths are 59.3 km s^-1; 1σ = 0.48 mJy; the data are not convolved with any smoothing function.