Global integrated ratio amplitudes of the modes m = 1 (solid lines) and m = 2 (dotted lines) for the primary galaxy (G₁) for the simulations 15 and 17 during a Hubble time. The | p₀₀ | denotes the global amplitude of the control simulation EXP00. For simulations EXP13, 16, 25, and 28 we show the global ratio amplitudes for G₁ until the merger time, denoted by the dashed lines. After the merge we show the global ratio amplitude of the compound galaxy (G₁ + G₂). For experiments EXP19, 20, and 31 (polar disk), we plot the evolution of G₁ until the merger of G₁ and G₂, represented again by the dashed lines.