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Trans-Neptunian Objects (TNOs) in the scattered disk with 50 < a < 100 au are thought to cluster near Neptune's n:1 resonances (e.g: 3:1, 4:1, and so on). While these objects spend lengthy periods of time at large heliocentric distances, if…

Earth and Planetary Astrophysics · Physics 2021-06-30 Matthew S. Clement , Scott S. Sheppard

The complex classification of trans-Neptunian objects (TNOs) that are captured in mean-motion resonances (MMRs) and the constraint of their multiple origins are two significant open problems concerning the Solar System. The case-by-case…

Earth and Planetary Astrophysics · Physics 2023-09-13 Alan J. Alves-Carmo , Timothée Vaillant , Alexandre C. M. Correia

We use a secular representation to describe the long-term dynamics of transneptunian objects in mean-motion resonance with Neptune. The model applied is thoroughly described in Saillenfest et al. (2016). The parameter space is…

Earth and Planetary Astrophysics · Physics 2016-11-15 Melaine Saillenfest , Marc Fouchard , Giacomo Tommei , Giovanni B. Valsecchi

A substantial fraction of our solar system's trans-Neptunian objects (TNOs) are in mean motion resonance with Neptune. Many of these objects were likely caught into resonances by planetary migration---either smooth or…

Earth and Planetary Astrophysics · Physics 2018-07-18 Tze Yeung Mathew Yu , Ruth Murray-Clay , Kathryn Volk

We use a secular model to describe the non-resonant dynamics of trans-Neptunian objects in the presence of an external ten-earth-mass perturber. The secular dynamics is analogous to an "eccentric Kozai mechanism" but with both an inner…

Earth and Planetary Astrophysics · Physics 2017-07-06 Melaine Saillenfest , Marc Fouchard , Giacomo Tommei , Giovanni B. Valsecchi

The existence of Planet Nine has been suggested to explain the pericenter clustering of extreme trans-Neptunian objects (TNOs). However, the underlying dynamics involving Planet Nine, test particles and Neptune is rich, and it remains…

Earth and Planetary Astrophysics · Physics 2018-11-28 Gongjie Li , Samuel Hadden , Matthew Payne , Matthew J. Holman

The outer solar system is populated by a broad aggregate of minor bodies, which occupy orbits whose dynamical character ranges from long-term stable to rapidly diffusive. We investigate the chaotic properties of known distant…

Earth and Planetary Astrophysics · Physics 2025-04-23 Gabriele Pichierri , Konstantin Batygin

Observations of clustering among the orbits of the most distant trans-Neptunian objects (TNOs) has inspired interest in the possibility of an undiscovered ninth planet lurking in the outskirts of the solar system. Numerical simulations by a…

Earth and Planetary Astrophysics · Physics 2018-06-06 Sam Hadden , Gongjie Li , Matthew J. Payne , Matthew J. Holman

Aims. Numerous trans-Neptunian objects are known to be in mean-motion resonance with Neptune. We aim to describe their long-term orbital evolution (both past and future) by means of a one-degree-of-freedom secular model. In this paper, we…

Earth and Planetary Astrophysics · Physics 2017-07-12 Melaine Saillenfest , Giacomo Lari

The dynamical structure of the Kuiper belt beyond 50 au is not well understood. Here we report results of a numerical model with long-range, slow and grainy migration of Neptune. The model implies that bodies scattered outward by Neptune to…

Earth and Planetary Astrophysics · Physics 2016-08-31 David Nesvorny , David Vokrouhlicky , Fernando Roig

Recent observational surveys of the outer Solar System provide evidence that Neptune's distant $n$:1 mean-motion resonances may harbor relatively large reservoirs of trans-Neptunian objects (TNOs). In particular, the discovery of two…

Earth and Planetary Astrophysics · Physics 2024-02-02 Matthew W. Porter , David W. Gerdes , Kevin J. Napier , Hsing Wen Lin , Fred C. Adams

The scattered disk is a vast population of trans-Neptunian minor bodies that orbit the sun on highly elongated, long-period orbits. The stability of scattered disk objects is primarily controlled by a single parameter - their perihelion…

Earth and Planetary Astrophysics · Physics 2021-11-02 Konstantin Batygin , Rosemary A. Mardling , David Nesvorny

The stability of Trojan type orbits around Neptune is studied. As the first part of our investigation, we present in this paper a global view of the stability of Trojans on inclined orbits. Using the frequency analysis method based on the…

Earth and Planetary Astrophysics · Physics 2015-05-13 Li-Yong Zhou , Rudolf Dvorak , Yi-Sui Sun

It is still an open question how the Solar system is structured beyond 100 au from the Sun. Our understanding of this vast region remains very limited and only recently we have become aware of the existence there of a group of enigmatic…

Earth and Planetary Astrophysics · Physics 2021-07-12 C. de la Fuente Marcos , R. de la Fuente Marcos

Two semi-analytical one-degree-of-freedom secular models are presented for the motion of small bodies beyond Neptune. A special attention is given to trajectories entirely exterior to the planetary orbits. The first one is the well-known…

Earth and Planetary Astrophysics · Physics 2016-11-15 Melaine Saillenfest , Marc Fouchard , Giacomo Tommei , Giovanni B. Valsecchi

We study the Kozai dynamics affecting the orbital evolution of transneptunian objects being captured or not in MMR with Neptune. We provide energy level maps of the type ({\omega},q) describing the possible orbital paths from Neptune up to…

Earth and Planetary Astrophysics · Physics 2015-06-05 Tabare Gallardo , Gaston Hugo , Pablo Pais

Recently, Sheppard et al. (2016) presented the discovery of seven new trans-Neptunian objects with moderate eccentricities, perihelia beyond 40 AU, and semimajor axes beyond 50 AU. Like the few previously known objects on similar orbits,…

Earth and Planetary Astrophysics · Physics 2016-12-28 Nathan A. Kaib , Scott S. Sheppard

The orbits of trans-Neptunian objects (TNOs) can indicate the existence of an undiscovered planet in the outer solar system. Here, we used N-body computer simulations to investigate the effects of a hypothetical Kuiper Belt planet (KBP) on…

Earth and Planetary Astrophysics · Physics 2023-08-29 Patryk Sofia Lykawka , Takashi Ito
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