Top: map of the rotational temperature calculated using Eq. (B.3). It is clear that the coverage of the image is limited to that of the weaker NH3 (2,2) line. No correlation is found between temperature and core position. Bottom: histogram of the Trot map in the top panel. Vertical dashed line indicates the median value of 12.7 K. The standard deviation is 1.8 K.
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