Radial-velocity correction process for a UVES spectra of Alpha Cen A convolved to HR10 resolution. The left panel depicts the Cross-Correlation value versus the doppler RV shift for a given model and observation comparison. The right panel shows the RV-corrected spectra (black solid line) and the uncorrected spectra (black dashed line) versus the high-resolution solar model from Turbospectrum (grey solid line).