Left: power spectrum of a stochastically driven simple harmonic oscillator (Equation (20)) plotted for several values of the quality factor Q. For comparison, the dashed line shows the Lorentzian function from Equation (11) with ﹩{c}_{j}={\omega }_{0}/(2\,Q)=1/20﹩ and normalized so that ﹩S({d}_{j})/S(0)=100﹩. Middle: corresponding autocorrelation functions with the same colors. Right: three realizations in arbitrary units from each model in the same colors.