[OI] λ6300 lines’ fit profiles for the MIKE spectra. The colors indicate the type of Gaussian component as described in Sect. 4.2: single component (dark blue), low-velocity narrow component (light blue), low-velocity broad component (red), high-velocity component (green). The black dotted line is located at 0 km/s, while the gray dotted lines indicate the velocity threshold for the high/low-velocity component (±30 km/s).