XMM spectral fit. The X-ray spectra are shown as a photon count rate as a function of energy (black data points) for the XMM PN detector (left column) and the combined M1 and M2 detectors (right column). The best fitting two-temperature APEC and power law emission models, convolved with the instrumental response, are shown in blue on the top and bottom rows respectively, with the 3-σ contours shown as shaded regions. In the case of the two-temperature APEC model, the two individual temperature components are shown in green and purple, along with their 3-σ contours. The residuals of the fit models, in both detectors, are shown on the bottom of their respective plots.