Measured line widths for radial-order modes are given by the open symbols as a function of frequency (left axis), and plotted with associated errors. Theoretical linear damping rates, multiplied by two, are shown by the solid curve (right axis). The dotted curve shows smoothed damping rates, multiplied by a factor of 2.2. Inputs to the theoretical model were taken from the best-fit GARSTEC model, e.g. the radius at the base of the surface convection zone (R_bcz/R_⋆ = 0.862).