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Fig. 7.

image

Probability of magnification in the source plane. The black solid line shows the probability of the total magnification when microlenses are present. The black dot-dashed line shows the probability computed in the same area, but when microlenses are not included (i.e., the smooth model). The black dotted line is the μ−3 law expected for smooth caustics. The blue dotted and red dashed curves are the probability of magnification from the regions with positive and negative parity, respectively.

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