Section of the power spectrum for harmonic degree ℓ = 85 around frequency 3.2 mHz (n = 7–9). Red crosses are mode frequencies of the rotationally split p-modes from the first Montjoie simulation in Table 1. For comparison, the gray scale image shows the GONG observational power spectrum taken from the paper by Hill et al. (1996). Darker shades indicate larger values of the power. We note the side lobes in the observations due to aliasing from observing half of the Sun. The slope (a₁) of the frequencies with m is due to the average rotation rate, while the curvature (a₃) indicates differential rotation (slower rotation near the poles).