Particle background-subtracted spectra extracted from the circular region centred on the X-ray peak of the cluster whose radius is defined to maximise the signal-to-noise ratio. The black, red, and green points represent the spectrum extracted from the MOS1, MOS2, and pn camera, respectively. The solid lines represent the model used to fit the spectra and their colour legend is the same as the points. The dash-dotted lines represent the sky background component. The arrow highlights the position of the iron line used to constrain the redshift.