Chaos-assisted capture of irregular moons

@article{Astakhov2003ChaosassistedCO,
  title={Chaos-assisted capture of irregular moons},
  author={Sergey A. Astakhov and Andrew D. Burbanks and Stephen Wiggins and David Farrelly},
  journal={Nature},
  year={2003},
  volume={423},
  pages={264-267}
}
It has been thought that the capture of irregular moons—with non-circular orbits—by giant planets occurs by a process in which they are first temporarily trapped by gravity inside the planet's Hill sphere (the region where planetary gravity dominates over solar tides). The capture of the moons is then made permanent by dissipative energy loss (for example, gas drag) or planetary growth. But the observed distributions of orbital inclinations, which now include numerous newly discovered moons… 

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