TOI-771 RV model from the joint fit. The solid grey line shows the best-fit global model, while the solid red line refers to GP component. Residuals are shown in the central panel. The jitter term has been added in quadrature to each error bar. The GLS periodogram of the residuals is shown in the bottom panel. The 1% and 0.1% FAP levels are marked with a horizontal dashed and dotted line, respectively. No significant signals are identified in the periodogram.