Electron temperature distribution in the inner ≲1.6 pc. Top: based on H39α (inner 40′′) and tapered to a resolution of 1.5′′ with contours of [4, 6, 8, 10] × 1000 K. Bottom: same as top, but based on H51β (inner 20′′). Maps on the uncertainties can be found in Fig. A.11.
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