Variability factor of sources from the XMM LP-total catalogue in the 0.2–4.5 keV band derived from average fluxes of the XMM-Newton EPIC observations plotted versus maximum detected flux (erg cm-2 s-1). Source classification is indicated: Foreground stars and candidates are marked as big and small stars, AGN and candidates as big and small crosses, background galaxies and galaxy clusters as big “X” and their candidates as small “X”, SSS candidates as triangles, SNRs and candidates as big and small octagons, GlCs and XRBs as big squares and their candidates as small squares. Sources with a statistical significance for the variability below three are marked in green.
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