Large N-body galaxy simulations reveal high chaos with Lyapunov times that extrapolate to Milky Way galaxies being chaotic on timescales ≲ 0.1 Myr.
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Live halos with sufficient mass resolution enable cascading multi-mode spirals in galactic disks through swing amplification and mode interference, absent in fixed-potential or coarsely resolved models.
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The exponential growth of infinitesimal perturbations in the long-term evolution of simulated galaxies
Large N-body galaxy simulations reveal high chaos with Lyapunov times that extrapolate to Milky Way galaxies being chaotic on timescales ≲ 0.1 Myr.
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Effects of Resolution and Local Stability on Galactic Disks: I. Multiple Spiral Mode Formation via Swing Amplification
Live halos with sufficient mass resolution enable cascading multi-mode spirals in galactic disks through swing amplification and mode interference, absent in fixed-potential or coarsely resolved models.