Figure 8

Figure 8: An example of the boundary between the mass-shedding limit and the ISCO [210]. The selected model is the case of 𝒞 = 0.145. The solid curve denotes the mass-shedding limit, and the long-dashed one the ISCO for each mass ratio as a function of the orbital angular velocity in polytropic units. The dotted curve denotes the mass-shedding limit for unstable quasi-equilibrium sequences.