Fig. 8.

Images recovered by LENSINGGW for a binary point lens: RA and Dec relative to the binary center of mass. The source (red dot) is lensed by two point masses (black dots) of M1 = M2 = 100 M⊙. When only one deflector is considered, two macroimages (blue dots) form. When the second lens is added, three total images (black crosses) form: their positions with respect to the critical curve (black line) and to the origin are consistent with the predictions of Schneider and Weiß. Magnifications (μ), normalized time delays (td), the caustic (red line), and a color map of the magnification in the RA−Dec plane are shown for completeness. The system confirms the applicability of the LENSINGGW algorithm to comparable-mass potentials.
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