Power spectral density (PSD) plots of a 2 уr simulated light curve due to convection-driven variability. Top: Components of the simulated granulation (blue) and stochastic oscillations (orange). Bottom: Zoom-in on the granulation and pulsation model clearly showing the recognisable envelope of frequency peaks (used to estimate ν_max) and the small (δν) and large (∆ν) frequency separations.