Simulation snapshots showing the orbital (x − y) plane at orbital phases, φ = 0.5 (top) and 1.0 (bottom). The left and right columns show density (in units of g cm^-3) and temperature (in K), respectively. All plots show the full x − y extent of the domain = ± 2.06 × 10¹⁴ cm = 2963R_⊙− for comparison, the primary and secondary star have a radius of 20 and 16R_⊙, respectively (see Sect. 2.2 for further details). At apastron (top row) the primary star is to the right, and vice-versa at periastron (bottom row).