NH₃ (1, 1) line intensity map in the direction toward G79.29+0.46. Only the main component has been integrated, in the velocity range indicated at the top right corner. On greyscale, the 1.2 mm continuum image of the MAMBO cameras at the IRAM 30 m telescope is also plotted (Motte et al. 2007). The logarithmic intensity scale used is indicated in the top bar. NH₃ starting contours and spacing are 0.2 K km s^-1. Equatorial coordinates refer to the star position (Sect. 2). The region was fully sampled within the square indicated at the south-west, and every 40′′elsewhere. The white contour, taken from the MAMBO data, is plotted to indicate the boundaries of the IRDC. Most of the NH₃ (1, 1) emission seems associated with the cold dust traced by the 1.2 mm continuum, although some low-level features are also noted (see text).