Simultaneous MCMC solutions to the WASP-10 photometry and RV data. (a) The top panels show the MCMC solutions to the combined SuperWASP-N, MERCATOR V and Tenagra I band photometry. All the data (apart from that from SuperWASP-N) were averaged in 300s bins). (b) The lower panel shows the MCMC solution to the FIES + SOPHIE RV data. (FIES RVs are shown as filled circles and SOPHIE as filled squares). The model fit to the RV data includes orbital eccentricity (solid line), and for a circular orbit (dashed line). Both RV models also include the Rossiter–McLaughlin effect, which is small for this system given the low v sin i of the host star (<6 km s⁻¹).