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Related papers: On the Origin of Pluto's Minor Moons, Nix and Hydr…

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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

This study explores the gravitational interaction between Pluto and its moon Charon, which has led to their synchronous orbit, where they consistently show the same face to each other. This process is known as tidal evolution, which…

Earth and Planetary Astrophysics · Physics 2024-03-05 Yun-Yan Lee

Pluto and its five known satellites form a complex dynamic system. Here we explore where additional satellites could exist exterior to Charon (the innermost moon) but interior of Hydra (the outermost). We also provide dynamical constraints…

Earth and Planetary Astrophysics · Physics 2015-05-25 Simon B. Porter , S. Alan Stern

We examine how the late divergent migration of Jupiter and Saturn may have perturbed the terrestrial planets. We identify six secular resonances between the nu_5 apsidal eigenfrequency of Jupiter and Saturn and the four eigenfrequencies of…

Earth and Planetary Astrophysics · Physics 2015-05-30 Craig B. Agnor , D. N. C. Lin

The small satellites of the Pluto system (Styx, Nix, Kerberos, and Hydra) have very low surface escape velocities, and impacts should therefore eject a large amount of material from their surfaces. We show that most of this material then…

Earth and Planetary Astrophysics · Physics 2015-06-19 Simon Porter , William Grundy

Using a suite of numerical calculations, we consider the long-term evolution of circumbinary debris from the Pluto-Charon giant impact. Initially, these solids have large eccentricity and pericenters near Charon's orbit. On time scales of…

Earth and Planetary Astrophysics · Physics 2021-04-14 Scott J. Kenyon , Benjamin C. Bromley

Centaurs are minor planets orbiting between Jupiter and Neptune that have or had crossing orbits with one or more giant planets. Recent observations and reinterpretation of previous observations have revealed the existence of ring systems…

Earth and Planetary Astrophysics · Physics 2016-09-02 Ryuki Hyodo , Sébastien Charnoz , Hidenori Genda , Keiji Ohtsuki

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…

The formation and orbital evolution of Saturn's inner mid-sized moons are still debated. The most puzzling aspects are 1) how the Tethys-Dione pair and the Mimas-Enceladus pair passed through their strong 3:2 mean-motion resonances during…

Earth and Planetary Astrophysics · Physics 2018-09-05 Ayano Nakajima , Shigeru Ida , Jun Kimura , Ramon Brasser

The Pluto-Charon system has come into sharper focus following the fly by of New Horizons. We use N-body simulations to probe the unique dynamical history of this binary dwarf planet system. We follow the evolution of the debris disc that…

Earth and Planetary Astrophysics · Physics 2017-01-18 Rachel A. Smullen , Kaitlin M. Kratter

The origin of Mars's small moons, Phobos and Deimos, remains unknown. They are typically thought either to be captured asteroids or to have accreted from a debris disk produced by a giant impact. Here, we present an alternative scenario…

Earth and Planetary Astrophysics · Physics 2024-11-21 Jacob A. Kegerreis , Jack J. Lissauer , Vincent R. Eke , Thomas D. Sandnes , Richard C. Elphic

The goal of this chapter is to review hypotheses for the origin of the Pluto system in light of observational constraints that have been considerably refined over the 85-year interval between the discovery of Pluto and its exploration by…

Earth and Planetary Astrophysics · Physics 2021-07-20 Robin M. Canup , Kaitlin M. Kratter , Marc Neveu

Moons tidally interact with their host planets and stars. A close moon is quickly synchronised by the planet, or becomes captured in a higher spin-orbit resonance. However, the planet requires much more time to significantly alter its…

Earth and Planetary Astrophysics · Physics 2025-09-15 Valeri V. Makarov , Michael Efroimsky

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

Systematic geomorphological mapping and detailed landform analysis using the highest resolution images obtained by the New Horizons spacecraft reveal the presence of a range of differentiable terrains on Charon, the largest moon of Pluto,…

Earth and Planetary Astrophysics · Physics 2022-09-29 Hanzhang Chen , An Yin

Current theory considers two options for the formation of the Pluto-Charon binary (Canup 2005, 2011; Desch 2015). In the `hit-and-run' model, a lower mass projectile barely hits the more massive Pluto, kicks up some debris, and remains…

Earth and Planetary Astrophysics · Physics 2019-10-02 Scott J. Kenyon , Benjamin C. Bromley

A Hamiltonian model is constructed for the spin axis of a planet perturbed by a nearby planet with both planets in orbit about star. We expand the planet-planet gravitational potential perturbation to first order in orbital inclinations and…

Earth and Planetary Astrophysics · Physics 2018-02-14 Alice C. Quillen , Yuan-Yuan Chen , Benoit Noyelles , Santiago Loane

The flyby of Pluto and Charon by the New Horizons spacecraft provided high-resolution images of cratered surfaces embedded in the Kuiper belt, an extensive region of bodies orbiting beyond Neptune. Impact craters on Pluto and Charon were…

Both Pluto and its satellite Charon have rotation rates synchronous with their orbital mean motion. This is the theoretical end point of tidal evolution where transfer of angular momentum has ceased. Here we follow Pluto's tidal evolution…

Earth and Planetary Astrophysics · Physics 2015-06-18 W. H. Cheng , Man Hoi Lee , S. J. Peale

The Pluto-Charon system, likely formed from an impact, has reached the endpoint of its tidal evolution. During its evolution into the dual-synchronous state, the equilibrium tidal figures of Pluto and Charon would have also evolved as…

Earth and Planetary Astrophysics · Physics 2016-03-22 Amy C. Barr , Geoffrey C. Collins