A phenomenological fit of two blackbodies (dashed and dot–dashed lines) to the XMM-Newton/EPIC pn (black) and XMM-NewtonMOS (red) data from X2. The dotted lines represent the background spectra for each instrument. The bottom panel shows the ratio between the observed number of counts in each spectral bin (data; black and red points in the top panel) and the best–fit predicted number of counts in each spectral bin (model; solid lines in the top panel).