Sequences at fixed magnetic flux Φ, computed in the case β₀ = −6. The red curve is the un-magnetised solution. From bottom to top: other curves are computed at Φ = [2.55, 2.06, 1.46, 0.91]×10³⁰ G cm². The various parts are: gravitationally stable de-scalarised branch (solid magenta); gravitationally unstable scalarised branch (black dashed); gravitationally stable scalarised branch (solid blue). The yellow region corresponds to gravitationally unstable models. The black dot represents the de-scalarised configuration with M₀ = 1.68 M_⊙ and Φ = 2.06 × 10³⁰ G cm², while the arrow points to the blue dot where the configuration is expected to jump because of magnetically-induced spontaneous scalarisation.