Decomposition of the Doppler surface maps and corresponding RV anomaly produced by the transiting exoplanet. Left: Doppler maps of the stellar surface for the best-fit solution for the HD 189733 data. The black lines over the maps show the latitudinal lines in intervals of 15°. The curved black and straight green arrows indicate the rotation direction of the star and the planet along its orbits, respectively. Right: RV anomaly created by the transiting exoplanet for the corresponding (same row) Doppler map. From top to bottom: rigid-body rotation model for the equatorial stellar velocity, the difference after subtracting the rigid-body rotation model from the differential rotation model, the CB, and the sum of all the previously mentioned components.