The planet nine hypothesis

@article{Batygin2019ThePN,
  title={The planet nine hypothesis},
  author={Konstantin Batygin and Fred C. Adams and Michael E. Brown and Juliette C. Becker},
  journal={Physics Reports},
  year={2019}
}

Orbital Precession in the Distant Solar System: Further Constraining the Planet Nine Hypothesis with Numerical Simulations

The longitudes of perihelia and orbital poles of the solar system’s dozen or so most remote detected objects are clustered in a manner inconsistent with that of a random sample of uniformly

Signatures of a Distant Planet on the Inclination Distribution of the Detached Kuiper Belt

A distant, massive planet in the outer solar system has recently been proposed to explain some observed features of extreme trans-Neptunian objects (TNOs). Here we use N-body simulations of the

Injection of Inner Oort Cloud Objects into the Distant Kuiper Belt by Planet Nine

The outer solar system exhibits an anomalous pattern of orbital clustering, characterized by an approximate alignment of the apsidal lines and angular momentum vectors of distant, long-term stable

A Rogue Planet Helps to Populate the Distant Kuiper Belt

The orbital distribution of trans-Neptunian objects (TNOs) in the distant Kuiper Belt (with semimajor axes beyond the 2:1 resonance, roughly a = 50–100 au) provides constraints on the dynamical

Mean plane of the Kuiper belt beyond 50 AU in the presence of Planet 9

Context. A recent observational census of Kuiper belt objects (KBOs) has unveiled anomalous orbital structures. This has led to the hypothesis that an additional ∼5 − 10 m⊕ planet exists. This

Limits on the Detection of Planet Nine in the Dark Energy Survey

Studies of the clustering of the most distant Kuiper Belt objects in the outer solar system have hinted at the possible existence of a planet beyond Neptune referred to as Planet Nine (P9). Recent

Features of the Dynamical Evolution of a Massive Disk of Trans-Neptunian Objects

Abstract— The dynamical features of a massive disk of distant trans-Neptunian objects are considered in the model of the formation of small bodies in the Hill region of a giant gas-dust clump

The Orbit of Planet Nine

The existence of a giant planet beyond Neptune—referred to as Planet Nine (P9)—has been inferred from the clustering of longitude of perihelion and pole position of distant eccentric Kuiper belt

The Resonance Hopping Effect in the Neptune-planet Nine System

The observed physical clustering of the orbits of small bodies in the distant Kuiper Belt (TNOs) has recently prompted the prediction of an additional planet in the outer solar system. Since the

Apsidal asymmetric-alignment of Jupiter Trojans

The most distant Kuiper belt objects exhibit the clustering in their orbits, and this anomalous architecture could be caused by Planet 9 with large eccentricity and high inclination. We then suppose
...

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Several properties of the Solar System, including the wide radial spacing of the giant planets, can be explained if planets radially migrated by exchanging orbital energy and momentum with outer disk
...