Posterior probability distributions in vsini − λ parameter space of all our targets obtained from the fit to individual RM observations obtained at different transits and on different nights. Each panel shows different planetary system, and in each panel different colors correspond to the different nights on which the RM observation were performed. The purple dashed line displays the reported value in the literature. B+08: Bouchy et al. (2008), H+11: Hellier et al. (2011), N+16: Neveu-VanMalle et al. (2016), G+09: Gillon et al. (2009), H+13: Hébrard et al. (2013), E+17: Esposito et al. (2017).