Fig. 11.
Cartoon illustrating a possible cause for the observed offset between the near-infrared continuum photocentre and the BLR. Dust continuum is assumed to follow a ring that is centred on the BLR and with radius based on the size measurement of GC20a. Brightness variation along this ring causes the offset between BLR and continuum photocentre. Variation in brightness of the hot dust distribution along a ring is supported by the resolved observations of NGC 1068 reported by GRAVITY Collaboration (2020b).
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