Fig. 1
Bisector span as a function of the radial velocities with 1σ error bars forWASP-151, 153 and 156 (from left to right). SOPHIE data are the red circles; CORALIE data are the blue squares. The ranges here have the same extents in the x- and y-axes. For each star, the posterior probability function of the correlation coefficient is displayed in an insert located in the upper left corner.
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