Fig. 3
Confidence regions for the mass of the secondary and the FWHM of its CCF, issued from numerical simulations of HD 156279. The dashed line is the upper limit derived from the astrometric analysis of Hipparcos data. At the 3-σ level the mass of the secondary is constrained by these simulations to ≲ 0.35 M⊙. Astrometric data discard the high-mass family with FWHM ~ 7 km s-1 permitted by the bisector data.
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