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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Gaia DR3 data shows the Milky Way bar pattern speed is biased high by 14.4 km s^{-1} kpc^{-1}, with a bias-corrected estimate of 29.3 ± 2.3 km s^{-1} kpc^{-1}.
citing papers explorer
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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
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From Gaia to GaiaNIR: II. A new view of the Milky Way bar
Gaia DR3 data shows the Milky Way bar pattern speed is biased high by 14.4 km s^{-1} kpc^{-1}, with a bias-corrected estimate of 29.3 ± 2.3 km s^{-1} kpc^{-1}.