Spectra and the best-fitting models for regions S1–S9 obtained from the data taken in 2009. The black curves are the sums of all the components whereas the other colors show contributions from each component. The red and orange curves represent the NEI models for the Fe and IME components, respectively. The magenta-dashed curves indicate the Gaussian added to the model. The model curves for the power-law component are drawn in blue. (Color online)