LS periodograms for different stellar models. Top panel: dτ_obs-LS periodogram for a simulated star rotating such as δν_rot, g = 0.69 μHz. Second panel: same diagram for a simulated magnetized, non-rotating star such as δν_mag, g(ν_max) = 0.4 μHz. Third panel: same diagram for a simulated magnetized and rotating star such as δν_rot, g = 0.69 μHz and δν_mag, g(ν_max) = 0.4 μHz. Bottom panel: dπ₀-LS periodogram of the same rotating and magnetized star. In each panel, the star is observed with various inclination angles with respect to the rotation axis of the star following the color code in the legend. LS periodogram are zoomed around the true value of the period spacing ΔΠ₁ = 75.2 s.