Data extracted from the line-of-centres as a function of orbital phase. The primary star is situated at d_sep = 0, where d_sep is the binary separation, and the phase-dependent position of the secondary star coincides with the “V”-shape in the plots. Shown are: logarithm of density in g cm^-3 (left), logarithm of temperature in K (middle), and line-of-centres velocity in units of 10⁸ cm s^-1 (right).