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We apply Laplace's tidal theory to the evolution of lunar and solar tides on the geologic timescale of Earth's rotation and focus on the tidal resonance. We study the global tide in the mid-ocean far away from continents. On the short…

Earth and Planetary Astrophysics · Physics 2021-03-31 Xing Wei

We consider the tidal excitation of modes in a binary system of arbitrary eccentricity. For a circular orbit, the modes generally undergo forced oscillation with a period equal to the orbital period ($T$). For an eccentric orbit, the…

Astrophysics · Physics 2016-08-30 Pawan Kumar , Chi On Ao , Eliot J. Quataert

Lainey et al. (2012), by re-analyzing long-baseline astrometry of Saturn's moons, have found that the moons' tidal evolution is much faster than previously thought, implying an order of magnitude stronger tidal dissipation within Saturn.…

Earth and Planetary Astrophysics · Physics 2013-11-27 Matija Ćuk , Luke Dones , David Nesvorný

Spin-orbit misalignments have been detected in exoplanetary systems and binary star systems. Tidal interactions may have played an important role in the evolution of the spin-orbit angle. In this study, we investigate the tidal interactions…

Earth and Planetary Astrophysics · Physics 2017-04-12 Yufeng Lin , Gordon Ogilvie

Regarding tidal dissipation in Saturn, usually parameterized by Saturn's quality factor Q, there remains a discrepancy between conventional estimates and the latest determination that has been derived from astrometric observations of…

Earth and Planetary Astrophysics · Physics 2017-03-22 Daigo Shoji , Hauke Hussmann

A large proportion of observed planetary systems contain several planets in a compact orbital configuration, and often harbor at least one close-in object. These systems are then most likely tidally evolving. We investigate how the effects…

Earth and Planetary Astrophysics · Physics 2015-11-11 Emeline Bolmont , Sean N. Raymond , Jeremy Leconte , Franck Hersant , Alexandre C. M. Correia

We present a new empirical calibration of equilibrium tidal theory for extrasolar planet systems, extending a prior study by incorporating detailed physical models for the internal structure of planets and host stars. The resulting strength…

Earth and Planetary Astrophysics · Physics 2015-06-04 Brad Hansen

Star clusters and dwarf galaxies gradually dissolve as they move in the potential of their host galaxy. Once their density falls below a certain critical density (which is comparable with the background density of the galaxy) it is often…

Astrophysics · Physics 2009-11-10 M. Fellhauer , D. C. Heggie

The internal thermal and magnetic evolution of rocky exoplanets is critical to their habitability. We focus on the thermal-orbital evolution of Earth-mass planets around low mass M stars whose radiative habitable zone overlaps with the…

Earth and Planetary Astrophysics · Physics 2015-09-25 Peter Driscoll , Rory Barnes

Gas giant planets are differentially rotating magnetic objects that have strong and complex interactions with their environment. In our Solar system, they interact with their numerous moons while exoplanets with very short orbital periods…

Earth and Planetary Astrophysics · Physics 2023-10-03 Hachem Dhouib , Clément Baruteau , Stéphane Mathis , Florian Debras , Aurélie Astoul , Michel Rieutord

Tidal dissipation within a short-period transiting extrasolar planet perturbed by a companion object can drive orbital evolution of the system to a so-called tidal fixed point, in which the apsidal lines of the transiting planet and its…

Earth and Planetary Astrophysics · Physics 2015-05-13 Konstantin Batygin , Peter Bodenheimer , Gregory Laughlin

The orbital architectures of short-period exoplanet systems are shaped by tidal dissipation in their host stars. For low-mass M-dwarfs whose dynamical tidal response comprises a dense spectrum of inertial modes at low frequencies, resolving…

Earth and Planetary Astrophysics · Physics 2024-02-16 Samantha C. Wu , Janosz W. Dewberry , Jim Fuller

Mutual gravitational interactions between the five major Uranian satellites raise small quasi-periodic fluctuations on their orbital elements. At the same time, tidal interactions between the satellites and the planet induce a slow outward…

Earth and Planetary Astrophysics · Physics 2024-09-12 Sérgio R. A. Gomes , Alexandre C. M. Correia

We present optical and infrared observations taken with the Very Large Telescope of the eclipsing binary pulsar system PSR B1718-19. The candidate companion of the pulsar, identified earlier in Hubble Space Telescope observations, has been…

Astrophysics · Physics 2009-11-11 T. Janssen , M. H. van Kerkwijk

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

We have performed N-body simulations of star clusters orbiting in a spherically symmetric smooth galactic potential. The model clusters cover a range of initial half-mass radii and orbital eccentricities in order to test the historical…

Astrophysics of Galaxies · Physics 2015-06-12 Jeremy J. Webb , William E. Harris , Alison Sills , Jarrod R. Hurley

Tidal dissipation due to turbulent viscosity in the convective regions of giant stars plays an important role in shaping the orbits of pre-common envelope systems. Such systems are possible sources of transients and close compact binary…

High Energy Astrophysical Phenomena · Physics 2021-03-31 Michelle Vick , Morgan MacLeod , Dong Lai , Abraham Loeb

In this Paper we determine the non-dissipative tidal evolution of a close binary system with an arbitrary eccentricity in which the spin angular momenta of both components are misaligned with the orbital angular momentum. We focus on the…

Solar and Stellar Astrophysics · Physics 2024-12-10 Y. A. Lazovik , P. B. Ivanov , J. C. B. Papaloizou

We investigate the dynamical evolution of hierarchical three-body systems under the effect of tides, when the ratio of the orbital semi-major axes is small and the mutual inclination is relatively large (greater than 20 degrees). Using the…

Earth and Planetary Astrophysics · Physics 2011-07-06 Alexandre C. M. Correia , Jacques Laskar , François Farago , Gwenaël Boué

We study how stably stratified or semi-convective layers alter tidal dissipation rates associated with the generation of inertial, gravito-inertial, interfacial and surface gravity waves in rotating giant planets. We explore scenarios in…

Earth and Planetary Astrophysics · Physics 2023-11-07 Christina M. Pontin , Adrian J. Barker , Rainer Hollerbach