Fig. 4
Distribution of secondary star masses. As in Fig. 1 systems containing C/O-core WDs (left) and He-core WDs (right) are shown in gray, while black distributions represent the entire PCEB population. A χ2 test provides Q(χ2) = 0.59 which implies that our data does not contain indications for the two distributions in gray to be drawn from different parent distributions.
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