Contributions of different approximation orders to l = 1,m = 0 mode frequencies: σ_2eigen (σ_3eigen) represent the implicit second (third respectively) order contribution to the eigenfrequency; σ_2T and σ_3T denote second and third order frequency corrections due to the Coriolis acceleration; σ_2D and σ_3D represent 2nd and 3rd order frequency corrections due to the centrifugal distorsion; σ_3C comes from the coupling of the distorsion and Coriolis effects. The contributions are plotted as a function of the radial order n for an 8.5 M_⊙ ZAMS model rotating uniformly at 15%   Ω_k, i.e. around 95 km s^-1 (see stellar parameters in Table 1). The frequencies are scaled by , so that σ = ω/Ω_k. We use a negative radial order n for gravity modes and a positive one for acoustic modes.