S/N results (left panel) and t-test results (right panel, in sigma units) when cross-correlating, in a wide range of K_P and v_wind values, the residual matrix and the synthetic absorption model including the p–T profile B anda water vapour content of VMR = 10⁻⁴. In both panels, the strongest signals reveal at planet radial velocity semi-amplitudes (K_P) compatibles with values in the literature. They also happen at the same wind velocities (v_wind), indicating a cross-correlation signal blue-shifted by −3.9 ± 1.3 km s⁻¹. No comparable signals are found close to the expected K_P. Neither are there comparable signals at the Earth’s frame (low K_P values), discarding the presence of significant telluric contamination.