Top left panel: UVIT FUV.CaF2 image of IC 2058 and PGC 75125 at the centre of the frame and at the east side, respectively. The image size is 5′×5′. North is on the top and east is to the left. Top central panel: FUV.CaF2 surface brightness profile (blue) of IC 2058 and (top right panel) of PGC 75125. The single Sérsic law is superposed (cyan) to fit the light profile. Bottom left panel: colour composite RGB image of IC 2058 and PGC 75125 as in Fig. 4. Bottom right panel: FUV.CaF2 image smoothed using the AMOOTH task, with τ_min = 1.5.