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Fig. B.1

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Reduced SPHERE and NACO data of TYC 8252-533-1 and its brown dwarf companion. For each of the presented filters we show the median of the full observing sequence. The images are derotated such that north points up and east towards the left. No PSF subtraction is applied for the SPHERE data – the star’s intensity is attenuated by a coronagraphic mask, and it is located at the origin of the coordinate system that is representing the differential offsets in RA and Dec. No coronagraph was used for the NACO observing sequence and the stellar PSF is removed by classical ADI (Marois et al. 2006) to obtain the presented image; we did not perform any PSF subtraction for the extraction of the companion’s photometry and astrometry. The companion is detected at a separation of ~ 4′′.4 in south-western direction from the primary. In the lower-left section of each panel, we present the non-coronagraphic stellar PSF as a reference. The images are shown with an arbitrary logarithmic color scale.

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