Steady-state surface density profiles for the same (from top to bottom) e_b = 0, e_b = 0.2, e_b = 0.5 and e_b = 0.75 cases as in Fig. 3. Left panels: radial profiles, along the binary semi-major axis direction, at periastron (full line) and apoastron (dotted line) passages of the companion star. Right panels: azimutal profiles, for a Δr = 0.1 wide annulus centred around r = 1 (in r_crit units), at periastron (full line) and apoastron (dotted line) passages of the companion star.