Light curve of each source over thirty-one XMM-Newton observations of EPIC cameras and OM cameras. The absorbed weighted flux (0.2–4.5 keV) of each source in the different observations is plotted over time. If the source was not detected in an observation, the upper limit is shown. In the cases of X-ray light curves, the red dots show the flux of each observation and the orange arrows show the upper limits. In optical and UV light curves, the black dots show the magnitude of the source and the grey arrows show the upper limits.