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Fig. 1.


Imaging of the field around the lensed quasar in r band (left). Middle panel: model of the two quasar images (marked A and B) and an unrelated foreground galaxy (FG) using GALFIT (Peng et al. 2002). The centroids of the two quasar images are shown by red crosses in all frames. Right panel: residuals of the model-subtracted image, and the lensing galaxy (LG) is clearly visible. The same color scale is used for all frames.

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