Fig. B.1
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Examples of AutoProf radial profile extraction on VIS data to derive photometric and morphological properties. Top left: UGC 02665 isophote fitting on an 2000 pixel × 2000 pixel pixel cutout (200″ × 200″, red angular scale on the image: 30″). Top right: Radial surface brightness profile for UGC 02665, showing a dip at r = 60″ due to overlap with neighbours, marking the photometry’s limit. Bottom left: WISEAJ031858.26 +414208.7 isophote fitting on a 2000 pixel × 2000 pixel cutout (200″ × 200″, red angular scale on the image: 30″). Bottom right: Radial surface brightness profile for NGC 1281, reaching down to 30.1 mag arcsec−2 at r = 100″ despite the proximity of a bright star. Cyan and red points on the radial profiles refer to the colours of isophotes in the associated AutoProf visual, which help guide the eye when comparing plots.
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