Fig. 7

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Chromatic effect of RVs. SOAP-GPU is initialized with three different spectra: entire wavelength coverage and only red and only blue spectral parts (see Sect. 6). A single spot with a size of 1%, a latitude of 30° and a longitude of 180° is modeled by the code. The measured RVs with different input spectra are labeled with black, red and blue, respectively. Top: measured RVs of the total effect. Middle: measured RVs of the flux effect. An offset of 1 m s−1 is added in the red and blue RVs. Bottom: measured RVs of the CB effect.
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