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Fig. A.1.
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Example of the computed cross-correlation function for one of the spectra with a relatively low S/N ratio (S/N ∼40, BLOeM 8-115_01). The final radial velocity measurement (RV = 144.2 km s−1) and its associated uncertainty (σRV = 4.7 km s−1) are derived from the maximum and the sharpness of the parabola interpolation of CCF.
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