Impact of long-term trends. Panel a: comparison of the RV amplitude found for each target for three different models, a–c. Error bars show the 1σ uncertainty from the MCMC posteriors. Target names are given as TIC IDs with the letter of the planet. Panel b: histogram showing the root-mean-squared error of the residuals to the fit. Panel c: histogram showing the RV amplitude found compared to model a. Panel d: histogram showing the amplitude of the trend found (for the linear trend in m s⁻¹ days⁻¹, for the quadratic trend in m s⁻¹ days⁻²). The asterisk marks cases where the value for the quadratic trend amplitude has been multiplied by 1000 to plot on the same axes. Panel e: histogram showing the 1σ uncertainty in the RV amplitude found for the different models.