Light curves for Obs 1 (left) and Obs 2 (right). Top panels: Three different energy bands: 0.3–10 keV (red), 0.3–2 keV (green), and 2–10 keV (blue). Also displayed are the timing bins (TB) from which we extracted EPIC-PN spectra for our analysis (see Sect. 3.2 for details). The light curves were binned at 100 s. The errors on the energy bin fluxes are shown by the shaded regions. Bottom panels: Ratio light curves between the 0.3–2 keV (green) and 2–10 keV (blue) energy bands in the top panel divided by the full 0.3–10 keV light curve (red line). The Obs 1 ratios are on the left hand side and the Obs 2 ratios are on the right.