r₀–g phase diagram for parameters Ω = 1, M = 0.4, V₀ = 0.5, and g₁₂ = g₂₁ = 200. The dashed line indicates the value of given by Eq. (33), and the solid line indicates the value of given by Eq. (34). The circles indicate that two components are annulus shaped; the plus signs indicate that the density distributions of the big component are disc shaped and the density distributions of the small component are annulus shaped; the points indicate that two components are both disc shaped.