Velocity slices through the LMC component of the Na i D₁ absorption in the UVES spectra, using a “rainbow” intensity scale (from black where there is no absorption, through purple/blue, then green/yellow, to red at the maximum detected absorption level). The centre velocity of each  ~5 km s^-1 wide slice is printed in each panel. The centre of R 136 is marked with a small white circle.