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Dynamical tide consists of various waves that can resonate with orbital motion. We test this coupling of dynamical tide and orbital motion using a simple two-dimensional shallow water model, which can be applied to a rocky planet covered…

Earth and Planetary Astrophysics · Physics 2025-02-04 Xing Wei

The evolution of many close binary and multiple star systems is defined by phases of mass exchange and interaction. As these systems evolve into contact, tidal dissipation is not always sufficient to bring them into circular, synchronous…

Solar and Stellar Astrophysics · Physics 2023-04-19 Morgan MacLeod , Michelle Vick , Abraham Loeb

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

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

We reexamine the popular belief that a telluric planet or satellite on an eccentric orbit can, outside a spin-orbit resonance, be captured in a quasi-static tidal equilibrium called pseudosynchronous rotation. The existence of such…

Earth and Planetary Astrophysics · Physics 2015-06-11 Valeri V. Makarov , Michael Efroimsky

We present a comprehensive theoretical study on the spin evolution of a planet under the combined effects of tidal dissipation and gravitational perturbation from an external companion. Such a "spin + companion" system (called Colombo's…

Earth and Planetary Astrophysics · Physics 2021-11-04 Yubo Su , Dong Lai

The apsidal motion of a non-synchronous binary pulsar serves as a valuable probe of relativistic gravity, stellar stricture, and dynamical evolution of close binary systems, In this study, we investigate the combined influence of general…

High Energy Astrophysical Phenomena · Physics 2026-01-16 Ali Taani

Some of the satellites in the Solar System, including the Moon, appear to have been captured from heliocentric orbits at some point in their past, and then have evolved to the present configurations. The exact process of how this trapping…

Earth and Planetary Astrophysics · Physics 2014-11-20 Alexandre C. M. Correia

Thermal, orbital, and rotational dynamics of tidally loaded exoplanets are interconnected by intricate feedback. The rheological structure of the planet determines its susceptibility to tidal deformation and, as a consequence, participates…

Earth and Planetary Astrophysics · Physics 2020-09-02 Michaela Walterová , Marie Běhounková

The orbit of the outer satellite Alexhelios of (216) Kleopatra is already constrained by adaptive-optics astrometry, obtained with the VLT/SPHERE instrument. However, there is also a preceding occultation event in 1980 attributed to this…

Earth and Planetary Astrophysics · Physics 2022-01-19 M. Brož , J. Ďurech , B. Carry , F. Vachier , F. Marchis , J. Hanuš , L. Jorda , P. Vernazza , D. Vokrouhlický , M. Walterová , R. Behrend

We study the orbital evolution of eccentric binary neutron stars. The orbit is described as a Quasi-Keplarian orbit with perturbations due to tidal couplings. We find that the tidal interaction between stars contributes to orbital…

General Relativity and Quantum Cosmology · Physics 2019-09-25 Huan Yang

The angle between the stellar spin and the planetary orbit axes (spin-orbit angle) is supposed to carry valuable information on the initial condition of the planet formation and the subsequent migration history. Indeed current observations…

Earth and Planetary Astrophysics · Physics 2015-06-18 Yuxin Xue , Yasushi Suto , Atsushi Taruya , Teruyuki Hirano , Yuka Fujii , Kento Masuda

Tidal dissipation is responsible for circularizing the orbits and synchronizing the spins of solar-type close binary stars, but the mechanisms responsible are not fully understood. Previous work has indicated that significant enhancements…

Solar and Stellar Astrophysics · Physics 2022-03-30 Adrian J. Barker

Intermediate mass stars and stellar remnants often host planets, and these dynamical systems evolve because of mass loss and tides. This paper considers the combined action of stellar mass loss and tidal dissipation on planetary orbits in…

Solar and Stellar Astrophysics · Physics 2015-06-17 Fred C. Adams , Anthony M. Bloch

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

As the observed occurrence for planets or stellar companions orbiting low and intermediate-mass evolved stars is increasing, so does the importance of understanding and evaluating the strength of their interactions. One of the fundamental…

Solar and Stellar Astrophysics · Physics 2024-10-23 M. Esseldeurs , S. Mathis , L. Decin

We present a simple theory for the evolution of initially compact clusters in a tidal field. The fundamental ingredient of the model is that a cluster conducts a constant fraction of its own energy through the half-mass radius by two-body…

Astrophysics of Galaxies · Physics 2013-01-24 Mark Gieles

Tidal dissipation in late-type stars is presently poorly understood and the study of planetary systems hosting hot Jupiters can provide new observational constraints to test proposed theories. We focus on systems with F-type main-sequence…

Solar and Stellar Astrophysics · Physics 2015-05-20 A. F. Lanza , C. Damiani , D. Gandolfi

We make publicly available an efficient, versatile, easy to use and extend tool for calculating the evolution of circular aligned planetary orbits due to the tidal dissipation in the host star. This is the first model to fully account for…

Earth and Planetary Astrophysics · Physics 2015-06-19 Kaloyan Penev , Michael Zhang , Brian Jackson

A significant fraction of the hot Jupiters with final circularized orbital periods of less than 5 days are thought to form through the channel of high-eccentricity migration. Tidal dissipation at successive periastron passages removes…

Earth and Planetary Astrophysics · Physics 2012-09-26 Aristotle Socrates , Boaz Katz , Subo Dong