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Related papers: On the non-dissipative tidal evolution of the misa…

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Stars and planets in close systems are magnetised but the influence of magnetic fields on their tidal responses (and vice versa) and dissipation rates has not been well explored. We present exploratory nonlinear magnetohydrodynamical (MHD)…

Solar and Stellar Astrophysics · Physics 2025-07-18 Aurélie Astoul , Adrian J. Barker

We explore the evolution of a giant planet that interacts with a circumbinary disc that orbits a misaligned binary by means of analytic models and hydrodynamical simulations. Planet-disc interactions lead to mutual tilt oscillations between…

Earth and Planetary Astrophysics · Physics 2025-07-10 Rebecca G. Martin , Stephen H. Lubow

Recent works suggest that, in multiplanetary systems, a close-in exoplanet can sometimes avoid becoming tidally locked to its host star if it is captured into a secular spin-orbit resonance with a companion planet. In such a resonance, the…

Earth and Planetary Astrophysics · Physics 2024-10-10 Henry Yuan , Yubo Su , Jeremy Goodman

Finite eccentricities in mass-transferring eccentric binary systems can be explained by taking into account mass-loss and mass-transfer processes that often occur in these systems. These processes can be treated as perturbations to the…

Solar and Stellar Astrophysics · Physics 2016-07-06 Fani Dosopoulou , Vicky Kalogera

Two formation scenarios have been proposed to explain the tight orbits of hot Jupiters. They could be formed in orbits with a small inclination (with respect to the stellar spin) via disk migration, or in more highly inclined orbits via…

Earth and Planetary Astrophysics · Physics 2015-06-18 Francesca Valsecchi , Frederic A. Rasio

The presence of an external tidal field often induces significant dynamical evolutionary effects on the internal kinematics of star clusters. Previous studies investigating the restricted three-body problem with applications to star cluster…

Astrophysics of Galaxies · Physics 2016-06-29 Maria Tiongco , Enrico Vesperini , Anna Lisa Varri

Accretion discs are common in binary systems, and they are often found to be misaligned with respect to the binary orbit. The gravitational torque from a companion induces nodal precession in misaligned disc orbits. We calculate whether…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Suzan Doğan , Chris Nixon , Andrew King , Daniel J. Price

Tidal dissipation in spinning compact binaries imprints characteristic corrections on the late-inspiral gravitational-wave signal. We develop a next-to-leading order post-Newtonian description of dissipative, electric-quadrupolar tides in…

General Relativity and Quantum Cosmology · Physics 2026-04-27 Anand Balivada , Abhishek Hegade K. R. , Nicolás Yunes

One of the most efficient and reliable observational technique allowing to probe the internal structure of a star is the determination of the apsidal motion in close eccentric binaries. This secular precession of the binary orbit's major…

Solar and Stellar Astrophysics · Physics 2025-11-04 Sophie Rosu

We describe the long-term evolution of compact systems of terrestrial planets, using a set of simulations that match the statistical properties of the observed exoplanet distribution. The evolution is driven by tidal dissipation in the…

Earth and Planetary Astrophysics · Physics 2015-06-19 Bradley M. S. Hansen , Norman Murray

In this paper we extend the previous work of Papaloizou \& Savonije on tidal interactions between a solar mass star and a closely orbiting giant planet which is such that the orbital and stellar spin angular momentum directions are…

Earth and Planetary Astrophysics · Physics 2025-09-09 J. C. B. Papaloizou , G. J. Savonije

The rate of tidal evolution of asteroidal binaries is defined by the dynamical Love numbers divided by quality factors. Common is the (often illegitimate) approximation of the dynamical Love numbers with their static counterparts. As the…

Earth and Planetary Astrophysics · Physics 2015-11-24 Michael Efroimsky

Star-planet interactions must be taken into account in stellar models to understand the dynamical evolution of close-in planets. The dependence of the tidal interactions on the structural and rotational evolution of the star is of peculiar…

Earth and Planetary Astrophysics · Physics 2017-08-23 Florian Gallet , Emeline Bolmont , Stéphane Mathis , Corinne Charbonnel , Louis Amard

Short-period binary star systems dissipate orbital energy through tidal interactions that lead to tighter, more circular orbits. When at least one star in a binary has evolved off of the main sequence, orbital circularization occurs for…

Solar and Stellar Astrophysics · Physics 2018-10-31 Adrian M. Price-Whelan , Jeremy Goodman

Recent observations of several protoplanetary discs have found evidence of departures from flat, circular motion in the inner regions of the disc. One possible explanation for these observations is a disc warp, which could be induced by a…

Earth and Planetary Astrophysics · Physics 2018-08-29 Rebecca Nealon , Giovanni Dipierro , Richard Alexander , Rebecca Martin , Chris Nixon

As we observe in the moon-earth system, tidal interactions in binary systems can lead to angular momentum exchange. The presence of viscosity is generally regarded as the condition for such transfer to happen. In this paper, we show how the…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Simone Dall'Osso , Elena M. Rossi

We simulate the coupled stellar and tidal evolution of short-period binary stars (orbital period $P_{orb} \lsim$8 days) to investigate the orbital oscillations, instellation cycles, and orbital stability of circumbinary planets (CBPs). We…

Earth and Planetary Astrophysics · Physics 2021-06-30 David E. Graham , David P. Fleming , Rory Barnes

Observations of hierarchical triple star systems show that misalignments are common both between the angular momentum vector of the inner binary and the outer companion orbit, and between the outer binary orbit and a circumtriple gas disk.…

Earth and Planetary Astrophysics · Physics 2025-03-11 Stephen Lepp , Rebecca G. Martin , Stephen H. Lubow

Eclipsing binaries are observed to have a range of eccentricities and spin-orbit misalignments (stellar obliquities). Whether such properties are primordial, or arise from post-formation dynamical interactions remains uncertain. This paper…

Solar and Stellar Astrophysics · Physics 2017-03-20 Kassandra R. Anderson , Dong Lai , Natalia I. Storch

Compact binary systems emitting gravitational waves (GWs) can exhibit orbital eccentricity, along with generic spin orientations, leading to the precession of the orbital angular momentum, individual spins, and the orbital plane. While…

General Relativity and Quantum Cosmology · Physics 2026-03-24 Soham Bhattacharyya , Omkar Sridhar