Logarithmic density maps in the orbital plane for three simulations with q = 1 and η = 4. Left panel: C-rich donor star with f = 5%. Center panel: O-rich donor star with f = 80%. Right panel: zoom-in on a C-rich donor star with f = 80%. The white dashed line represents the local tangent to the circle centered on the donor star, while the white dot-dashed line is the local tangent to the spiral shock. Zoom-in for the left and center panels and a zoom-out for the right panel are available in Appendix C. The outer edge of the simulation space lies at 40 orbital separations away from the donor star.