Inverse BW method described in Sect. 3 applied considering a Gaussian distribution for the distance. The resulting projection factor distributions are shown in three particular cases: when using the cross-correlated radial velocity curve RV_cc−g (red), the RV_c radial velocity curve of line 7 (blue), and the RV_c radial velocity curve of line 10 (green). The quantities σ_stat−d and σ_syst−d are the uncertainties on the projection factor due to the statistical and systematical uncertainties on the distance, respectively. The quantity σ_stat−fluor stems from the statistical uncertainties on the FLUOR/CHARA interferometric measurements.