Fig. B.2

NH3 (1,1) and (2,2) spectra towards clumps 01 to 17. Green colour indicates the NH3 (1,1) fitting and Gaussian fitting of the NH3 (2,2) lines (see Sect. 2.2). The central position of this area is at (l, b) = (28.59°, 3.55°). Offsets in Galactic coordinates (unit: arcmin) are shown in the top right corner of each NH3 (1,1) panel.
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