Fig. A.1.
Two components models of the azimuthally averaged surface brightness profiles of galaxies in HCG 86 group. The blue line indicates a fit to the outer diffuse component (halo+IGL). The red line indicates a fit to the inner regions with a Sérsic profile, and the black line indicates the sum of the components in each fit. The vertical dashed lines show the estimated value for Rtr for each galaxy. Bottom panel: Δ rms scatter of the data minus the model (see text for details).
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