Fig. 12.
Left: colour excess map for the M1931 BCG as computed from the Balmer decrement. Right: ionisation parameter map, as computed from the HII-CH-mistry tool (Pérez-Montero et al. 2014). The cross in all diagrams shows the location of the AGN. The contours show the Hα flux intensity. The white background corresponds to the spaxels with an S/N < 10 in the emission lines of interest.
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