Model Stokes V signatures for stars at rotation phases 0, 0.5, and 1. The solid black line is for a star with a single ℓ = 2, m = −2 pulsation mode, while the dashed grey line is for a non-pulsating star. The stars have a uniform surface brightness, and identical rotation periods and magnetic fields. The model Stokes V signatures deviate strongly from each other, even at equivalent rotation phases i.e. 0 and 1, due to the pulsation velocities.