Numerical continuation in an off-centered asymmetric barred galaxy potential shows that bar-disc offsets and internal lopsidedness distort invariant manifolds of Lyapunov orbits to create asymmetric arms, with a pitchfork bifurcation at the point where the center of mass exits the bar reducing the 5
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Arm morphology in off-centre barred galaxies
Numerical continuation in an off-centered asymmetric barred galaxy potential shows that bar-disc offsets and internal lopsidedness distort invariant manifolds of Lyapunov orbits to create asymmetric arms, with a pitchfork bifurcation at the point where the center of mass exits the bar reducing the 5