Square boxes present the a posteriori probability density functions for V   sin   I, β and impact parameter b, from which we extract our results. The white contour marks the 68.27% confidence region. The black dashed contour shows the 95.45%, and the black dotted contour the 99.73% confidence regions. Marginalised distributions are also shown as black histograms in side boxes, normalised to the mode. At the top right, in red, we have the results for a circular, non drifting solution with use of a prior of v = 1.35 ± 0.20 km s^-1. On bottom left, in blue, we show a circular, non-drifting solution with the application of a prior of v   sin   I = 2.2 ± 0.3 km s^-1. Grey histograms in V   sin   I and β show results in the photometry limited runs; for b, we plotted the resulting distribution by fitting the photometry alone without the Rossiter-McLaughlin effect.