Images of the velocity-integrated NH₃(1, 1) and NH₃(2, 2) lines from Maffei 2. The emission was integrated from −135 km s^-1 to 62 km s^-1. The gray scale images are the continuum maps at the respective frequencies (~23.7 GHz) with the upper bars providing the flux density scale in mJy beam^-1. The contour levels are −3, 3, 4, 5, and 6 times 1.3 mJy km s^-1 beam^-1 for the (1, 1) map and −3, 3, 4, 5, and 6 times 1.8 mJy km s^-1 beam^-1 for the (2, 2) map. The spectra to the right show the integrated NH₃ emission (upper panel) and the spectra toward the four regions depicted in the contour maps (lower panel).