Fig. 1.
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Two-dimensional histogram of κ and γ values computed for the selected lensed images from the OM10 catalog. The color in each bin represents the count number. The red solid line indicates where μmacro → ∞ separating minimum (below) from saddle (above) images. We note that κ ≈ γ is due to describing the mass distribution of the lenses with a SIE + γext.
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