UVES radial velocity curves and best-fit model. Top panel: radial velocity measurements from the UVES data. The red points correspond to the primary RV measurements, and the blue points to the secondary RVs. The errors in the RV measurements are also shown, but are smaller than the data points. The continuous black lines correspond to the best-fit model of the Keplerian orbit of the eclipsing components. Bottom panel: residuals to the fit in red for the primary and in blue for the secondary, and the uncertainties that correspond to the error in each RV measurement. The rms in the residuals are comparable to the errors in the RV measurements, ∼0.6 km s⁻¹ for the primary and ∼1.1 km s⁻¹ for the secondary.