Red- and blue-shifted parts of the Si, S, Ar, Ca, and Fe line emission spatial distribution and their associated spectrum as found by pGMCA. The spectra in red correspond to the application of the algorithm on real data, while the dotted gray spectra correspond to the application on a hundred constrained bootstrap resamplings illustrating statistical uncertainties. The x-axis is in keV and the y-axis in counts. The dotted vertical lines represent the energy of the brightest emission lines for a non-equilibrium ionization plasma at a temperature of 1.5 keV and ionization timescale of log (τ) = 11.3 cm⁻³ s produced using the AtomDB (Foster et al. 2012). These parameters are the mean value of the distribution shown in Fig. 2 of Hwang & Laming (2012).