Radial velocities. Upper panel: phase-folded radial-velocity measurements from SOPHIE (green squares) and CORALIE (blue circles). The SOPHIE measurement that fell during transit and is excluded from our MCMC analysis is shown as a grey square. The centre-of-mass velocity, γ = −7.7941 km s^-1, has been subtracted, as has the fitted offset γ_COR−SOPH = 41.6 m s^-1 between the two datasets. The best-fitting MCMC solution is over-plotted as a solid black line. Inset: a close up of the Rossiter-McLaughlin effect. In addition to the model plotted in the main panel, a second model where is not constrained with a prior is shown with a dashed orange line. Middle panel: residuals from the Keplerian and RM fit as a function of time. No significant linear trend is present in the residuals (the best-fitting linear radial acceleration is  m s^-1 yr^-1). Lower panel: bisector span measurements as a function of radial velocity. The uncertainties in the bisectors are taken to be twice the uncertainty in the radial velocities.