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Fig. 2.


Results of fitting observations of the system OGLE BLG-ECL-145467. Left: phase-folded light curves of both inner binaries. Right: period variation (ETVs) as the two binaries move on their respective orbits; the primary eclipses are denoted as full dots, secondary eclipses as open circles. Shown are our new measurements using the Danish 1.54 m telescope (red symbols; the size represents their relative precision). The typical uncertainty is plotted as an error bar in the right panels. The red curves are our model.

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