Distribution of Ammonia Density, Velocity, and Rotational Excitation in the Region of Sagittarius B2

Abstract

Examination of 1.25-cm NH3 inversion radiation in the Sgr B2 region shows an irregular distribution of NH3 about 10' in size, with considerable variation in density, velocity, and state of excitation. Relative intensities of the (1,1), (2,2), and (3,3) inversion transitions do not appear to correspond to equilibrium conditions. Relaxation processes, which allow nonequilibrium, are examined