The planet nine hypothesis

K Batygin, FC Adams, ME Brown, JC Becker - Physics Reports, 2019 - Elsevier
Over the course of the past two decades, observational surveys have unveiled the intricate
orbital structure of the Kuiper Belt, a field of icy bodies orbiting the Sun beyond Neptune. In …

The Lidov-Kozai oscillation and hugo von Zeipel

T Ito, K Ohtsuka - arXiv preprint arXiv:1911.03984, 2019 - arxiv.org
The so-called Lidov-Kozai oscillation is very well known and applied to various problems in
solar system dynamics. This mechanism makes the orbital inclination and eccentricity of the …

Long-term orbital dynamics of trans-Neptunian objects

M Saillenfest - Celestial Mechanics and Dynamical Astronomy, 2020 - Springer
This article reviews the different mechanisms affecting the orbits of trans-Neptunian objects,
ranging from internal perturbations (planetary scattering, mean-motion resonances, and …

Scattered disc dynamics: the mapping approach

S Hadden, S Tremaine - Monthly Notices of the Royal …, 2024 - academic.oup.com
We derive, and discuss the properties of, a symplectic map for the dynamics of bodies on
nearly parabolic orbits. The orbits are perturbed by a planet on a circular, coplanar orbit …

A hidden friend for the galactic center black hole, Sgr A

S Naoz, CM Will, E Ramirez-Ruiz, A Hees… - The Astrophysical …, 2019 - iopscience.iop.org
The hierarchical nature of galaxy formation suggests that a supermassive black hole binary
could exist in our galactic center. We propose a new approach to constraining the possible …

The eccentric Kozai–Lidov mechanism for outer test particle

S Naoz, G Li, M Zanardi, GC De Elía… - The Astronomical …, 2017 - iopscience.iop.org
The secular approximation of the hierarchical three body systems has been proven to be
very useful in addressing many astrophysical systems, from planets to stars to black holes. In …

Discovery and dynamical analysis of an extreme trans-Neptunian object with a high orbital inclination

JC Becker, T Khain, SJ Hamilton… - The astronomical …, 2018 - iopscience.iop.org
We report the discovery and dynamical analysis of 2015 BP 519, an extreme trans-
Neptunian object (TNO) detected by the Dark Energy Survey at a heliocentric distance of 55 …

Three-dimensional structure of mean motion resonances beyond Neptune

T Gallardo - Celestial Mechanics and Dynamical Astronomy, 2020 - Springer
We propose a semianalytical method for the calculation of widths, libration centers and small-
amplitude libration periods of the mean motion resonances k_p kp: k in the framework of the …

Planet formation and stability in polar circumbinary discs

N Cuello, CA Giuppone - Astronomy & Astrophysics, 2019 - aanda.org
Context. Dynamical studies suggest that most circumbinary discs (CBDs) should be
coplanar (ie the rotation vectors of the binary and the disc should be aligned). However …

An integrable model for the dynamics of planetary mean-motion resonances

S Hadden - The Astronomical Journal, 2019 - iopscience.iop.org
I consider the dynamics of mean-motion resonances (MMRs) between pairs of coplanar
planets and derive a new integrable Hamiltonian model for the planets' resonant motion …