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Fig. 2


1000s-binned XMM-Newton combined EPIC (0.3–10 keV) X-ray light-curve of V751 Cyg, showing possible modulation at the orbital period of 3.467 h (12.5 ks). The time origin of the plot is seconds since the time from which all three instruments were taking data: 2011 Nov. 24 at 10:32 = MJD 55 889.44 (see Table 1).

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