Simulation of a companion in a circular (e = 0; left column) and eccentric (e = 0.9; right column) orbit as if observed by the Kepler Space Telescope. The following parameters were used: P = 1 yr, ϖ = 0, M_pulsating = 1.8 M_⊙, and M_companion = 0.1 M_⊙. This led to a semi-amplitude of around 34 s in the circular case (using Eq. (15)) and around 15 s in the eccentric case (using Eq. (17)). Upper panel: simulated time delay plot. Lower panel: Fourier transformation of the time delays. One can clearly see the relative increase of the first harmonic at two cycles/year for the eccentric case.