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With the discovery over the last two decades of a large diversity of exoplanetary systems, it is now of prime importance to characterize star-planet interactions and how such systems evolve. We address this question by studying systems…

Solar and Stellar Astrophysics · Physics 2019-01-16 M. Benbakoura , V. Réville , A. S. Brun , C. Le Poncin-Lafitte , S. Mathis

Paper on the creep tide theory and its applications to satellites and planets with emphasis on a new set of differential equations allowing easier numerical studies. The creep tide theory is a new paradigm that does not fix a priori the…

Earth and Planetary Astrophysics · Physics 2020-04-03 Sylvio Ferraz-Mello , Cristian Beaugé , Hugo Alberto Folonier , Gabriel Oliveira Gomes

The Earth's obliquity is stabilized by the Moon, which facilitates a rapid precession of the Earth's spin-axis, de-tuning the system away from resonance with orbital modulation. It is however, likely that the architecture of the Solar…

Earth and Planetary Astrophysics · Physics 2015-06-22 Gongjie Li , Konstantin Batygin

The two moons of Mars, Phobos and Deimos, have orbits that are close to martian equator, indicating their formation from a circumplanetary disk. Phobos is currently migrating toward Mars due to tidal dissipation within the planet, and may…

Earth and Planetary Astrophysics · Physics 2025-03-18 Matija Ćuk , Kaustub P. Anand , David A. Minton

Phobos and Deimos are the two small Martian moons, orbiting almost on the equatorial plane of Mars. Recent works have shown that they can accrete within an impact-generated inner dense and outer light disk, and that the same impact…

Earth and Planetary Astrophysics · Physics 2017-12-27 Ryuki Hyodo , Pascal Rosenblatt , Hidenori Genda , Sébastien Charnoz

We show that a model in which Mars grows near Earth and Venus but is then scattered out of the terrestrial region yields a natural pathway to explain the low masses of the Martian moons Phobos & Deimos. In this scenario, the last giant…

Earth and Planetary Astrophysics · Physics 2018-01-25 Bradley M. S. Hansen

Earth-like planets in the habitable zone of low-mass stars undergo strong tidal effects that modify their spin states. These planets are expected to host dense atmospheres that can also play an important role in the spin evolution. On one…

Earth and Planetary Astrophysics · Physics 2024-10-02 E. F. S. Valente , A. C. M. Correia , P. Auclair-Desrotour , M. Farhat , J. Laskar

The equilibrium rotation of tidally evolved "Earth-like" extra-solar planets is often assumed to be synchronous with their orbital mean motion. The same assumption persisted for Mercury and Venus until radar observations revealed their true…

Astrophysics · Physics 2008-08-08 Alexandre C. M. Correia , Benjamin Levrard , Jacques Laskar

Disagreement in estimations of the observed acceleration of Phobos yields several theories empirically modifying classical description of motion of the satellite, but its orbital positions detected by Mars-aimed spacecraft differ from…

General Physics · Physics 2012-02-15 Alexander P. Yefremov

Neptune's present axial tilt of approximately 28 deg. with respect to its orbital plane can be explained by collisions that its primordial core may have experienced with surrounding planetary embryos during the final stages of its…

Earth and Planetary Astrophysics · Physics 2026-03-20 Rodney Gomes

This is an erratum for the publication Bolmont & Mathis 2016 (Celestial Mechanics and Dynamical Astronomy, 126, 275-296, https://doi.org/10.1007/s10569-016-9690-3). There was a small mistake for the spin integration of our code which we…

Earth and Planetary Astrophysics · Physics 2019-02-13 Emeline Bolmont , Stéphane Mathis

Tsiganis et al. (2005) have proposed that the current orbital architecture of the outer solar system could have been established if it was initially compact and Jupiter and Saturn crossed the 2:1 orbital resonance by divergent migration.…

Astrophysics · Physics 2007-05-23 Man Hoi Lee , S. J. Peale , Eric Pfahl , William R. Ward

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

In a geocentric kinematically rotating ecliptical coordinate system in geodesic motion through the deformed spacetime of the Sun, both the longitude of the ascending node $\Omega$ and the inclination $I$ of an artificial satellite of the…

General Relativity and Quantum Cosmology · Physics 2019-01-11 Lorenzo Iorio

The spin axis of a rotationally deformed planet is forced to precess about its orbital angular momentum vector, due to the tidal gravity of its host star, if these directions are misaligned. This induces internal fluid motions inside the…

Earth and Planetary Astrophysics · Physics 2016-07-27 Adrian J. Barker

We consider the evolution of a binary system interacting due to tidal effects without restriction on the orientation of the orbital, and where significant, spin angular momenta, and orbital eccentricity. We work in the low tidal forcing…

Solar and Stellar Astrophysics · Physics 2020-11-11 P. B. Ivanov , J. C. B. Papaloizou

Astrophysical fluid bodies that orbit close to one another induce tidal distortions and flows that are subject to dissipative processes. The spin and orbital motions undergo a coupled evolution over astronomical timescales, which is…

Solar and Stellar Astrophysics · Physics 2015-06-19 Gordon I. Ogilvie

Here we present the current state of knowledge on the long-term evolution of Saturn's moon system due to tides within Saturn. First we provide some background on tidal evolution, orbital resonances and satellite tides. Then we address in…

Earth and Planetary Astrophysics · Physics 2024-01-30 Matija Ćuk , Maryame El Moutamid , Giacomo Lari , Marc Neveu , Francis Nimmo , Benoît Noyelles , Alyssa Rhoden , Melaine Saillenfest

Tidal friction is thought to be important in determining the long-term spin-orbit evolution of short-period extrasolar planetary systems. Using a simple model of the orbit-averaged effects of tidal friction, we study the evolution of…

Earth and Planetary Astrophysics · Physics 2009-04-27 A. J. Barker , G. I. Ogilvie

Aims: Revisit and improvement of the main results obtained in the study of the tidal evolution of several massive CoRoT planets and brown dwarfs and of the rotation of their host stars. Methods: Simulations of the past and future evolution…

Earth and Planetary Astrophysics · Physics 2016-06-21 Sylvio Ferraz-Mello