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Related papers: The doubly librating Plutinos

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Plutinos are Kuiper-belt objects that share the 3:2 Neptune resonance with Pluto. The long-term stability of Plutino orbits depends on their eccentricity. Plutinos with eccentricities close to Pluto (fractional eccentricity difference…

Astrophysics · Physics 2009-10-31 Qingjuan Yu , Scott Tremaine

We illuminate dynamical properties of Kuiper Belt Objects (KBOs) in the 3:2 (``Plutino'') and 2:1 (``Twotino'') Neptunian resonances within the model of resonant capture and migration. We analyze a series of numerical integrations, each…

Astrophysics · Physics 2009-11-07 E. I. Chiang , A. B. Jordan

Many of the unusual properties of Pluto's orbit are widely accepted as evidence for the orbital migration of the giant planets in early solar system history. However, some properties remain an enigma. Pluto's long term orbital stability is…

Earth and Planetary Astrophysics · Physics 2022-04-19 Renu Malhotra , Takashi Ito

The dynamics of the high-inclination Plutinos is systematically studied. We first present the peculiar features of the 2:3 Neptune mean motion resonance (NMMR) for inclined orbits, especially for the correlation of resonant amplitude…

Earth and Planetary Astrophysics · Physics 2015-06-17 Jian Li , Li-Yong Zhou , Yi-Sui Sun

The discovery of Pluto in 1930 presaged the discoveries of both the Kuiper Belt and ice dwarf planets, which are the third class of planets in our solar system. From the 1970s to the 19990s numerous fascinating attributes of the Pluto…

Earth and Planetary Astrophysics · Physics 2018-10-17 S. Alan Stern , William Grundy , William B. McKinnon , Harold A. Weaver , Leslie A. Young

Context: The role of Pluto contributing to the long-term evolution of the trans-Neptunian region has been considered significant only over its neighboring Plutinos. However, it has recently been found that the long-term stability of the…

Earth and Planetary Astrophysics · Physics 2026-03-11 S. Ramírez-Vargas , A. Peimbert , M. A. Muñoz-Gutiérrez , A. Perez-Villegas

The origin of the highly eccentric, inclined, and resonance-locked orbit of Pluto has long been a puzzle. A possible explanation has been proposed recently [Malhotra, R., {\it Nature} 365:819-21 (1993)] which suggests that these…

Astrophysics · Physics 2009-10-28 Renu Malhotra

Observations of Kuiper belt objects (KBOs) in Neptune's 5:2 resonance present two puzzles: this third order resonance hosts a surprisingly large population, comparable to the prominent populations of Plutinos and Twotinos in the first order…

Earth and Planetary Astrophysics · Physics 2018-07-25 Renu Malhotra , Lei Lan , Kathryn Volk , Xianyu Wang

We observed twelve Plutinos over two separated years with the 4.3m Lowell's Discovery Channel Telescope. Here, we present the first lightcurve data for those objects. Three of them (2014JL$_{80}$, 2014JO$_{80}$, 2014JQ$_{80}$) display a…

Earth and Planetary Astrophysics · Physics 2018-06-06 Audrey Thirouin , Scott S. Sheppard

The current populations trapped in Neptune's main mean motion resonances in the Kuiper belt, Plutinos in the 3:2 and Twotinos in the 2:1, contain some of the best-characterized minor objects in the Solar System, given their dynamical…

Earth and Planetary Astrophysics · Physics 2026-01-28 Marco A. Muñoz-Gutiérrez , Sebastián Ramírez , Antonio Peimbert , Angeles Pérez-Villegas , Cristobal Petrovich

We carried out extensive numerical orbit integrations to probe the long-term chaotic dynamics of the two strongest mean motion resonances of Neptune in the Kuiper belt, the 3:2 (Plutinos) and 2:1 (Twotinos). Our primary results include a…

Astrophysics · Physics 2013-02-25 Matthew S. Tiscareno , Renu Malhotra

The Kuiper belt is a population of icy bodies beyond the orbit of Neptune. The complex orbital structure of the Kuiper belt, including several categories of objects inside and outside of resonances with Neptune, emerged as a result of…

Earth and Planetary Astrophysics · Physics 2016-07-13 David Nesvorny , David Vokrouhlicky

The first exploration of Pluto was motivated by (i) the many intriguing aspects of this body, its atmosphere, and its giant impact binary-planet formation; as well as (ii) the scientific desire to initiate the reconnaissance of the…

Instrumentation and Methods for Astrophysics · Physics 2021-03-18 Stuart J. Robbins , S. Alan Stern , Richard Binzel , Will Grundy , Doug Hamilton , Rosaly Lopes , Bill McKinnon , Cathy Olkin

Our discovery of two new satellites of Pluto, designated S/2005 P 1 and S/2005 P 2 (henceforth, P1 and P2), combined with the constraints on the absence of more distant satellites of Pluto, reveal that Pluto and its moons comprise an…

As the second part of our study, in this paper we proceed to explore the dynamics of the high-inclination Twotinos in the 1:2 Neptune mean motion resonance (NMMR). Depending on the inclination $i$, we show the existence of two critical…

Earth and Planetary Astrophysics · Physics 2015-06-18 Jian Li , Li-Yong Zhou , Yi-Sui Sun

A widely considered characteristic of extra-solar planetary systems has been a seeming tendency for major axes of adjacent orbits to librate in stable configurations. Based on a new catalog of extra-solar planets (Butler et al. 2006) and…

Astrophysics · Physics 2009-11-11 Rory Barnes , Richard Greenberg

Triton and Pluto are believed to share a common origin, both forming initially in the Kuiper Belt but Triton being later captured by Neptune. Both objects display similar sizes, densities, and atmospheric and surface ice composition, with…

Earth and Planetary Astrophysics · Physics 2024-09-04 Tanguy Bertrand , François Forget , Emmanuel Lellouch

The Pluto-Charon system provides a broad variety of constraints on planetary formation, composition, chemistry, and evolution. Pluto was the first body to be discovered in what is now known as the Kuiper belt, its orbit ultimately becoming…

Earth and Planetary Astrophysics · Physics 2020-12-01 William B. McKinnon , Christopher R. Glein , Tanguy Bertrand , Alyssa R. Rhoden

To incorporate the gravitational influence of Kuiper belt objects (KBOs) in planetary ephemerides, uniform-ring models are commonly employed. In this paper, for representing the KBO population residing in Neptune's 2:3 mean motion resonance…

Earth and Planetary Astrophysics · Physics 2024-11-07 Yue Chen , Jian Li

Pluto's argument of perihelion is known to librate around $90^\circ$. This libration is related to the secular phenomenon known as the von Zeipel-Lidov-Kozai (vZLK) oscillation. In this work, we make a quantitative assessment of the…

Earth and Planetary Astrophysics · Physics 2025-06-18 Takashi Ito , Renu Malhotra
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