Shepherding in a Self-Gravitating Disk of Trans-Neptunian Objects
A
relatively massive and moderately eccentric disk of trans-Neptunian
objects (TNOs) can effectively counteract apse precession induced by the
outer planets, and in the process shepherd highly eccentric members of
its population into nearly-stationary configurations which are
anti-aligned with the disk itself.
https://arxiv.org/abs/1804.06859
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