Fig. 7
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Fit of the astrometric data of HD 206893 B looking for an exomoon. The MCMC analysis finds a 95% upper limit of 0.8 MJup for the potential exomoon mass and a peak in semimajor axis at 0.22 au, while the inclination and position angle of ascending node are around 90 deg. Another MCMC plot assuming a fixed semimajor axis around its peak is shown in Fig. B.1.
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