Fig. 7
Contour plot of the difference κWL(θ) − κ(θ), where κ(θ) is the true surface mass density of the lens and κWL(θ) is a weak lensing reconstruction of the lens yielding the same total mass. In the central region the reconstructed profile underestimates the surface mass density, while in a significant region of the image plane the opposite case occurs.
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