The Influence of Planet Nine on the Orbits of Distant TNOs: The Case for a Low-perihelion Planet

  title={The Influence of Planet Nine on the Orbits of Distant TNOs: The Case for a Low-perihelion Planet},
  author={Jessica C'aceres and Rodney Gomes},
  journal={The Astronomical Journal},
The hypothesis of an additional planet in the outer solar system has gained new support as a result of the confinement noted in the angular orbital elements of distant trans-Neptunian objects. Orbital parameters proposed for the external perturber suggest semimajor axes between 500 and 1000 au, perihelion distances between 200 and 400 au for masses between 10 and 20 M ⊕. In this paper, we study the possibility that lower perihelion distances for the additional planet can lead to angular… 
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