(a) Color scale of the NH ₃ kinetic temperature using fitting method (1): gray areas indicate where the assumptions for this technique are invalid. The blue, red, and white contours show the lowest 3.6 cm contour from Figure 2, highest (3,3) contour from Figure 2(c), and highest (1,1) contour from Figure 1(a), respectively. The locations of the profiles shown in (b), for the non-thermal NH ₃ emission (18 ^h54 ^m01 119, +02°01′14 08), and (c) the stronger 25 GHz CH ₃OH maser (18 ^h54 ^m01 076, +02°01′16 47) are indicated along with other positions fitted with method (2) and presented in Table 2. In (b) and (c), the vertical dotted line marks the local standard of rest (LSR) velocity of +53.1 km s ⁻¹.