Full width at half maximum of modes as a function of frequency for HD 52265. Crosses correspond to values obtained by fitting the same widths for modes (l = 1,   n − 1) and (l = 0,   n), i.e. fit A, whereas plus signs correspond to values obtained by fitting the same widths for modes (l = 1,   n) and (l = 0,   n), i.e. fit B. Widths are plotted as a function of the mean frequency of the two modes. The dotted line indicates the spectral resolution. The dashed line shows predictions by Chaplin et al. (2009). The y-axis on the right-hand side shows the corresponding lifetimes.