Fig. 7

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Results of the MCMC orbital fitting of HD 95086 based on the NaCo archive data (epochs 2012-2013) and our SPHERE-IRDIS astrometric results obtained in the K1 band with the SpeCal-TLOCI pipeline (epochs 2015-2019). The orbital parameters are: the orbital period (P (yr)), the eccentricity (e), the inclination (i (°)), the longitude of ascending node (ω (°)), the argument of periastron (ω (°)), the time of periastron passage (Tp (yr AD)). The best orbital fit solution is given by the MAP as black stars in the non-diagonal panels, and as the solid black vertical lines in the diagonal panels. The 1σ confidence region defined as the shortest interval comprising 68% of the probability around the MAP solution is shown with the vertical dashed red lines in the diagonal panels. As ω and ω are degenerated; confidence regions of 34% are given for both. If (ω, ω) is a solution, then (ω + 180°, ω + 180°) is a solution as well. The color bar (on the right) indicates the number of solutions corresponding to a given color for each subplot.
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