Surface imaginary part of the potential perturbation for the ℓ = 2, m = 0, n = 11, k = 5 oscillation mode. The left panel corresponds to a case where the stellar rotation frequency is 0.25 Ω_crit = 1.15 d⁻¹, while in the right panel the stellar rotation frequency is 0.5 Ω_crit = 2.29 d⁻¹. The orange curves correspond to the results of the coupled oscillation code, while the blue curves correspond to the solution from the uncoupled oscillation code. The dark curves correspond to negative values of the potential perturbation while the lighter curves corresponds to positive values.