GLS periodograms for the combined RVs, RV residuals from the fit, the activity indices CRX, dLW, and Hα, and the window function. The dotted horizontal lines represent the 1, 5, and 10% FAP. The red shaded area is the position of the orbital period of the planet, and the vertical dotted red lines are aliases of that period. The vertical dotted black line represents the 6.4 d stellar rotation period by Newton et al. (2016).