Sample of resonance curves obtained as described in Sect. 3. Each panel corresponds to a different arbitrarily chosen binary system, with the rounded values of their initial parameters given on the right. The dark red and blue curves reflect the behaviour of ℒ(t) for the primary and secondary components, respectively. For clarity, ℒ₂(t) has been shifted vertically by three orders of magnitude downwards. Time t = 0 indicates the ZAMS. A sudden break in ℒ₂(t) in the bottom panel (after about 5.5 Myr) indicates ℒ₂ = 0, i.e. the absence of any resonances. The differences in the height of the peaks are due to different values of γ_nlm and min{|σ_nlm − f_Nm|} for excited TEOs.