No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects

@article{Napier2021NoEF,
  title={No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects},
  author={Kevin J. Napier and David W. Gerdes and Hsing Wen 省文 Lin 林 and Stephanie Hamilton and Gary M. Bernstein and Pedro H. Bernardinelli and Timothy M. C. Abbott and Michel Aguena and James T. Annis and Santiago {\'A}vila and David Bacon and Emmanuel Bertin and David Brooks and David L. Burke and A. Carnero Rosell and Matias Carrasco Kind and Jorge Carretero and Matteo Costanzi and L. N. da Costa and Juan Carlos de Vicente and H. Thomas Diehl and Peter Doel and S. Everett and I. Ferrero and Pablo Fosalba and Juan Garc{\'i}a-Bellido and Daniel Gruen and Robert A. Gruendl and Gaston R. Guti{\'e}rrez and Devon L. Hollowood and Klaus Honscheid and Ben Hoyle and David J. James and Stephen Kent and Kyler W. Kuehn and Nikolay Kuropatkin and Marcio A. G. Maia and Felipe Menanteau and Ramon Miquel and Robert Morgan and Antonella Palmese and Francisco Paz-Chinch{\'o}n and Andreas Alejandro Plazas and Eusebio S{\'a}nchez and Victor E. Scarpine and Santiago Serrano and Ignacio Sevilla-Noarbe and M. Smith and Eric Suchyta and Mollye E. C. Swanson and C. To and Alistair R. Walker and R. D. Wilkinson},
  journal={The Planetary Science Journal},
  year={2021},
  volume={2}
}
The apparent clustering in longitude of perihelion ϖ and ascending node Ω of extreme trans-Neptunian objects (ETNOs) has been attributed to the gravitational effects of an unseen 5–10 Earth-mass planet in the outer solar system. To investigate how selection bias may contribute to this clustering, we consider 14 ETNOs discovered by the Dark Energy Survey, the Outer Solar System Origins Survey, and the survey of Sheppard and Trujillo. Using each survey's published pointing history, depth, and TNO… 

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The Atacama Cosmology Telescope: A Search for Planet 9

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Laplace surface dynamics, revisited: satellites, exoplanets, and debris with distant, eccentric companions

  • M. FarhatJ. Touma
  • Physics, Geology
    Monthly Notices of the Royal Astronomical Society
  • 2021
To date, studies of Laplace surface dynamics have concerned themselves with test particle orbits of fixed shape and orientation in the combined field of an oblate central body (to which the

Dynamical Population of Comet Reservoirs

The Oort cloud and the scattered disk are the two primary reservoirs for long-period and short-period comets, respectively. In this review, we assess the known observational constraints on these

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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

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