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Fig. 18

image

Circumnuclear disk (CND) average spectra in the sub-mm/FIR lines presented in this work. The plots were created by averaging the spectra within a 100′′ × 100′′ area centred at the position of Sgr A, from data cubes with a common 46′′ spatial resolution. Vertical dotted lines show the loci of the 3 kpc, 4.5 kpc, and local arm spiral features at ~55 km s-1, ~30 km s-1, and ~5 km s-1, respectively.

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