Fig. 3
Phase-dependent spectral heat map, obtained by binning the EPIC-pn source counts to 40 phase and 50 energy bins. Top panel: colors are proportional to the number of counts per bin. Middle panel: data rates are corrected for the EPIC-pn response matrix efficiency and normalized by the phase-averaged number of counts in each energy bin. Bottom panel: data normalized a second time using the rate average of each phase bin for the soft X-ray band (0.2–0.6 keV).
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