Variations in the spectral parameters (left) and observed flux (middle) with phase, for the best-fit model with the first temperature and the absorptions fixed. The solid and open symbols correspond to XMM-Newton and Swift data, respectively. The right panel shows, for the same model, the flux ratio as a function of the inverse stellar separation ratio D_ref/D for the XMM-Newton and Swift data. The reference data corresponds to the first observation of each dataset, i.e., data from Oct. 04 for XMM-Newton and data from Jan. 11 for Swift. The black circles corresponds to the total, 0.5–10.0 keV flux, the green squares to the soft, 0.5–2.0 keV flux, and the blue triangles to the hard, 2.0–10.0 keV flux.