Same as Fig. B.1 but for the source SS3. The channel spacing is 0.77 km s^-1 and 0.038 km s^-1 in the two upper and three lower panels. The corresponding spectral resolutions are 0.895 km s^-1 and 0.044 km s^-1 (FWHM). The red curves show the fit of a single-component (two upper panels) and a double-component (three lower panels) Gaussian model to the original NH₃ data. Two components of the NH₃ emission are marked by ticks and labeled by letters A and B.