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Table 3

0.510 keV fluxes, variability factor and significance of the variability of sources observed with XMM-Newton and Swift/XRT (flux in erg cm-2 s-1).

No. obs1 (Jul.–Aug. 2011) Jun. 2012 obs2 (Sept. 2012) V f S
(Swift) (XMM-Newton) (Swift)

54 1.8 0.8
63 1.6 1.4

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