Astronomy & Astrophysics

Table 1: NACO observations of TY CrA and SAO210858: instrumental set-up and observations logs. Camera S27 and S13 respectively provide 27.0 and 13.4 mas/pixel sampling. DIT and NDIT correspond respectively to the exposure integration time and the number of exposures.
Table 2: MISTRAL deconvolution results. Contrast and relative position between the unresolved triple system and the fourth stellar component candidate observed at $1.257~\mu$ m and $2.166~\mu$ m.
Table 3: Stellar parameters for the fourth stellar component candidate to TY CrA if bound to the system.