Black and red points and lines show the MOS and PN data and models, with the relative 1σ errors. We detect significant emission up to ~3 keV. For the clarity of the plot, data are binned to have a 2σ significance in each bin. Arrows show the 2σ upper limits. In the lower inset, the Δχ² is shown for different values of photon index. In the upper inset, the Δχ² contour plot is shown as a function of the photon index and the N_H at the 68% and 90% confidence level (for the 2 parameters of interest).