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Fig. 2

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Time-averaged closure phase and squared visibility observations of HD 85567. The panel on the left presents the closure phases. The closure phase error bars shown represent the mean error in the measurements. A frame selection of 80 per cent was used. In the panel on the right, we present the squared visibilities. A frame selection of 20 per cent was used. The errors represent the mean error in the calibrated visibilities. The solid line is the visibility profile of a ring with a radius of 0.69 mas, 1.0 AU at 1.5 kpc. The long-dashed line corresponds to a ring with a radius of 0.56 mas (0.8 AU) with the addition of a background that accounts for 5 percent of the total flux.

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