RV shifts produced by a single spot at θ = 90° with a size of ASn = 1.6 × 10-3 stellar surfaces on a Sun-like star with i∗ = 90° for a simulation without (Q = 0, in red) and with faculae (Q = 3.0, in blue). The result of simulating a rotating star (Prot = 25 days) without convection is plotted with a dashed line, showing the flux effect. The simulation of a convective star without Doppler shifts is plotted with a dotted line. Both effects are included in the results plotted with a solid line. The HARPS passband is used to compute all the RVs.
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