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Fig. 4

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Left panel: regions used for spectral extraction to derive the temperature and abundance maps. The white circle corresponds to the ASCA aperture. Right panel: black circles correspond to the values and 1σ error bars for the temperature and abundances obtained with the 1T model for each region shown in the left panel, discussed in the text in Sect. 4.1. The dashed vertical lines indicate the regions adjacent to the surface brightness jumps of Fig. 2. The red triangles correspond to the values for temperature and abundance obtained with a 2T model, as discussed in the text in Sect. 4.2. The higher temperature value at 5 keV has been fixed.

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