Fig. 5
Upper panel: CO(7–6) map shown in the Fig. 1. Middle panel: the best-fit Gaussian circular source with ρ = 151 mas lensed and convolved by the PdBI clean beam. Lower panel: the best-fit elliptical source lensed and convolved with the PdBI clean beam. The ellipse parameters are ρmaj = 260 mas, ρmin / ρmaj = 0.36, and θ = 108 deg. The left insets show the residuals at the A images, the contours are at 1 × σ and 2 × σ.
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