Central 3 × 3 spaxels of the 5 × 5 PACS array, showing the detected [C ii] 157.7 μm emission line. Spaxels outside this region show no signal. In addition to the central spaxel 12, the adjacent spaxels 11, 13, and 17 also detect a signal (listed in Table 1). Overplotted on the data are synthetic observations of the disk model “5 × 5 au” (Sect. 3.2, Table 2).
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