Table 2

Cross-correlations for 1RXS and (clean) 2RXS catalogue sources with EXI_ML in the range 7.5−14.5.

EXI_ML 7.5−14.5 Sources 2RXP XMMSL1_dr6 3XMM_dr4 1SXPS

1RXS 70909 2.91% (2070) 1.52% (1077) 1.31% (935) 1.55% (1101)
2RXS 58766 3.36% (1975) 1.94% (1138) 1.46% (859) 1.85% (1089)
1RXS no 2RXS 21241 1.85% (394) 0.64% (136) 1.32% (281) 1.09% (232)
2RXS no 1RXS 20766 2.51% (523) 1.01% (211) 1.32% (273) 1.27% (264)

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