Average profiles for each night in the 2000 data plotted on a velocity scale corrected for the measured RVs of m₁. A constant vertical shift is applied for clarity in this figure. The average orbital phase for the night is shown. The spectrum at ⟨ φ ⟩ = 0.925 is re-plotted (dashes) for comparison with the others, and shows that the line-profile near conjunctions (⟨ φ ⟩ = 0.135 and 0.625) is broader than near elongations (⟨ φ ⟩ = 0.925, 0.385).