Circularizing Planet Nine through dynamical friction with an extended, cold planetesimal belt

@article{Eriksson2018CircularizingPN,
  title={Circularizing Planet Nine through dynamical friction with an extended, cold planetesimal belt},
  author={L.E.J. Eriksson and Alexander J. Mustill and Anders Johansen},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2018},
  volume={475},
  pages={4609-4616}
}
Unexpected clustering in the orbital elements of minor bodies beyond the Kuiper belt has led to speculations that our Solar system actually hosts nine planets, the eight established plus a hypothetical 'Planet Nine'. Several recent studies have shown that a planet with a mass of about 10 Earth masses on a distant eccentric orbit with perihelion far beyond the Kuiper belt could create and maintain this clustering. The evolutionary path resulting in an orbit such as the one suggested for Planet… Expand

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