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Context: The Solar System giant planets harbour a wide variety of moons. Moons around exoplanets are plausibly similarly abundant, even though most of them are likely too small to be easily detectable with modern instruments. Moons are…

Earth and Planetary Astrophysics · Physics 2026-01-28 Yubo Su , Melaine Saillenfest

We study tidal dissipation in stars with masses in the range $0.1-1.6 M_\odot$ throughout their evolution, including turbulent effective viscosity acting on equilibrium tides and inertial waves in convection zones, and internal gravity…

Earth and Planetary Astrophysics · Physics 2020-09-09 Adrian J. Barker

We investigate the nature of tidal effects in compact triple-star systems. The hierarchical structure of a triple system produces tidal forcing at high frequencies unobtainable in binary systems, allowing for the tidal excitation of high…

Solar and Stellar Astrophysics · Physics 2015-06-12 Jim Fuller , Aliz Derekas , Tamas Borkovits , Daniel Huber , Timothy Bedding , Laszlo Kiss

Understanding the physics of planetary magma oceans has been the subject of growing efforts, in light of the increasing abundance of Solar system samples and extrasolar surveys. A rocky planet harboring such an ocean is likely to interact…

Earth and Planetary Astrophysics · Physics 2024-12-11 Mohammad Farhat , Pierre Auclair-Desrotour , Gwenaël Boué , Tim Lichtenberg , Jacques Laskar

Tidal dissipation in planetary interiors is one of the key physical mechanisms that drive the evolution of star-planet and planet-moon systems. New constraints are now obtained both in the Solar and exoplanetary systems. Tidal dissipation…

Earth and Planetary Astrophysics · Physics 2014-07-02 Mathieu Guenel , Stéphane Mathis , Françoise Remus

When planets are formed from the protoplanetary disk and after the disk has dissipated, the evolution of their orbits is governed by tidal interactions, friction, and gravitational drag, and also by changes in the mass of the star and…

There is an intriguing and growing population of Neptune-sized planets with stellar obliquities near $\sim90^{\circ}$. One previously proposed formation pathway is a disk-driven resonance, which can take place at the end stages of planet…

Earth and Planetary Astrophysics · Physics 2024-10-04 Emma Louden , Sarah Millholland

Tidal interaction governs the redistribution of angular momentum in close binary stars and planetary systems and determines the systems evolution towards the possible equilibrium state. Turbulent friction acting on the equilibrium tide in…

Solar and Stellar Astrophysics · Physics 2018-07-11 P. G. Beck , S. Mathis , F. Gallet , C. Charbonnel , M. Benbakoura , R. A. García , J. -D. do Nascimento

Recent observations have shown that at least some close-in exoplanets maintain eccentric orbits despite tidal circularization timescales that are typically shorter than stellar ages. We explore gravitational interactions with a distant…

Earth and Planetary Astrophysics · Physics 2015-06-12 Ke Zhang , Douglas P. Hamilton , Soko Matsumura

We revisit the global modes and instabilities of homogeneous rotating ellipsoidal fluid masses, which are the simplest global models of rotationally and tidally deformed gaseous planets or stars. The tidal flow in a short-period planet may…

Earth and Planetary Astrophysics · Physics 2016-04-20 Adrian J. Barker , Harry J. Braviner , Gordon I. Ogilvie

Tidal effects arise from differential and inelastic deformation of a planet by a perturbing body. The continuous action of tides modify the rotation of the planet together with its orbit until an equilibrium situation is reached. It is…

Earth and Planetary Astrophysics · Physics 2010-09-20 Alexandre C. M. Correia , Jacques Laskar

This paper considers the stability of tidal equilibria for planetary systems in which stellar rotation provides a significant contribution to the angular momentum budget. We begin by applying classic stability considerations for two bodies…

Earth and Planetary Astrophysics · Physics 2015-06-23 Fred C. Adams , Anthony M. Bloch

Unveiling the fate of ultra-short period (USP) planets may help us understand the qualitative agreement between tidal theory and the observed exoplanet distribution. Nevertheless, due to the time-varying interchange of spin-orbit angular…

Earth and Planetary Astrophysics · Physics 2021-04-28 Jaime A. Alvarado-Montes , Mario Sucerquia , Carolina García-Carmona , Jorge I. Zuluaga , Lee Spitler , Christian Schwab

Although warm jupiters are generally too far from their stars for tides to be important, the presence of an inner planetary companion to a warm jupiter can result in tidal evolution of the system. Insight into the process and its effects…

Earth and Planetary Astrophysics · Physics 2014-01-29 Christa Van Laerhoven , Richard Greenberg

In close exoplanetary systems, tidal interactions drive orbital and spin evolution of planets and stars over long timescales. Tidally-forced inertial waves (restored by the Coriolis acceleration) in the convective envelopes of low-mass…

Solar and Stellar Astrophysics · Physics 2022-08-17 A. Astoul , A. J. Barker

Existence of subsurface oceans on the satellites of the giant planets and Trans-Neptunian objects has been predicted for some time. Oceans on icy worlds exert a considerable influence on the dynamics of the ice-ocean system and, because of…

Earth and Planetary Astrophysics · Physics 2022-02-16 Amirhossein Bagheri , Amir Khan , Frederic Deschamps , Henri Samuel , Mikhail Kruglyakov , Domenico Giardini

Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet. Stellar rotation modifies the structure…

Earth and Planetary Astrophysics · Physics 2016-06-15 Giovanni Privitera , Georges Meynet , Patrick Eggenberger , Aline A. Vidotto , Eva Villaver , Michele Bianda

The stellar rotation has an essential role in modifying the structure of the star and, therefore, the way these different interplays arise. On the other hand, changes in orbits impact the star's rotation and its evolution. The evolution of…

Earth and Planetary Astrophysics · Physics 2024-04-11 Thiago M. Santiago , Sarah G. A. Barbosa , Francisco J. Cavalcante , Daniel B. de Freitas

While the number of detected planets is continuously increasing since 1995, their impact on their central star still remain poorly understood. Yet, the presence of a massive close-in planet can strongly modify the surface angular velocity…

Earth and Planetary Astrophysics · Physics 2018-10-30 Florian Gallet , Philippe Delorme

Inspired by the recent Kepler discoveries of circumbinary planets orbiting nine close binary stars, we explore the fate of the former as the latter evolve off the main sequence. We combine binary star evolution models with dynamical…

Earth and Planetary Astrophysics · Physics 2016-12-14 Veselin B. Kostov , Keavin Moore , Daniel Tamayo , Ray Jayawardhana , Stephen A. Rinehart