Spatial shift between the NH₃ and dust maxima for targets where both KEYSTONE and Herschel data are available. For the missing sources, no maxima are visible for at least one dataset. The colours show the region hosting the source as mentioned in the legend. The shift of Δα = −18″, Δδ = 13″ corresponds to the isolated source east of the Center region. The circles have 10″ and 20″ radii, corresponding to 25% and 50% of the Effelsberg beam size, and to 31% and 62% of the GBT beam size.