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Fig. 2.

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Maximum a posteriori PL+MP lens models. Rows, from top to bottom: SDP 81, SPT 0532−50, and SPT 0538−50. First column: model lensed surface brightness distribution, with contours of the convergence in units of the critical surface-mass density in black. Second column: noise-normalised residuals (data−model); black contours show the model lensed surface brightness distribution; dashed grey contours show the mask. Third column: model source surface brightness distribution, with caustics in black. The colour scale is the same for each column.

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