125 citations · 588 across the 19 of their papers we have counts for
19 papers
Detection of the tidal deformation of WASP-103b at with CHEOPS
S. C. C. Barros, B. Akinsanm, G. Boué +5
WASP-103b is the exoplanet with the highest expected deformation signature in its transit light curve and one of the shortest expected spiral-in times. Measuring the tidal deformat…
Ellipsoidal equilibrium figure and Cassini states of rotating planets and satellites deformed by a tidal potential in the spatial case
Hugo A. Folonier, Gwenaël Boué, Sylvio Ferraz-Mello
The equilibrium figure of an inviscid tidally deformed body is the starting point for the construction of many tidal theories such as Darwinian tidal theories or the hydrodynamical…
The large obliquity of Saturn explained by the fast migration of Titan
Melaine Saillenfest, Giacomo Lari, Gwenaël Boué
The obliquity of a planet is the tilt between its equator and its orbital plane. Giant planets are expected to form with near-zero obliquities. After its formation, some dynamical…
Constraining the Earth's Dynamical Ellipticity from Ice Age Dynamics
Mohammad Farhat, Jacques Laskar, Gwenaël Boué
The dynamical ellipticity of a planet expresses the departure of its mass distribution from spherical symmetry. It enters as a parameter in the description of a planet's precession…
Discovery and characterization of the exoplanets WASP-148b and c. A transiting system with two interacting giant planets
G. Hebrard, R. F. Diaz, A. C. M. Correia +39
We present the discovery and characterization of WASP-148, a new extrasolar system that includes at least two giant planets. The host star is a slowly rotating inactive late-G dwar…
Orbital relaxation and excitation of planets tidally interacting with white dwarfs
Dimitri Veras, Michael Efroimsky, Valeri V. Makarov +6
Observational evidence of white dwarf planetary systems is dominated by the remains of exo-asteroids through accreted metals, debris discs, and orbiting planetesimals. However, exo…
Tidal evolution of the Keplerian elements
Gwenaël Boué, Michael Efroimsky
We address the expressions for the rates of the Keplerian orbital elements within a two-body problem perturbed by the tides in both partners. The formulae for these rates have appe…
Detectability of shape deformation in short-period exoplanets
B. Akinsanmi, S. C. C. Barros, N. C. Santos +4
Short-period planets suffer from extreme tidal forces from their parent stars causing them to deform and attain non-spherical shapes. The planet shapes, modeled here as triaxial el…
Activity induced variation in spin-orbit angles as derived from Rossiter-McLaughlin measurements
M. Oshagh, A. H. M. J. Triaud, A. Burdanov +17
One of the most powerful methods used to estimate sky-projected spin-orbit angles of exoplanetary systems is through a spectroscopic transit observation known as the Rossiter-McLau…
Rotation of a rigid satellite with a fluid component. A new light onto Titan's obliquity
Gwenaël Boué, Nicolas Rambaux, Andy Richard
We revisit the rotation dynamics of a rigid satellite with either a liquid core or a global sub-surface ocean. In both problems, the flow of the fluid component is assumed inviscid…
Complete spin and orbital evolution of close-in bodies using a Maxwell viscoelastic rheology
Gwenaël Boué, Alexandre C. M. Correia, Jacques Laskar
In this paper, we present a formalism designed to model tidal interaction with a viscoelastic body made of Maxwell material. Our approach remains regular for any spin rate and orie…
The Two Rigid Body Interaction using Angular Momentum Theory Formulae
Gwenaël Boué
This work presents an elegant formalism to model the evolution of the full two rigid body problem. The equations of motion, given in a Cartesian coordinate system, are expressed in…
Secular and tidal evolution of circumbinary systems
Alexandre C. M. Correia, Gwenaël Boué, Jacques Laskar
We investigate the secular dynamics of three-body circumbinary systems under the effect of tides. We use the octupolar non-restricted approximation for the orbital interactions, ge…
Spin-orbit angle in compact planetary systems perturbed by an inclined companion. Application to the 55 Cancri system
Gwenaël Boué, Daniel C. Fabrycky
The stellar spin orientation relative to the orbital planes of multiplanet systems are becoming accessible to observations. For example, 55 Cancri is a system composed of 5 planets…
Tidal damping of the mutual inclination in hierachical systems
A. C. M. Correia, G. Boue, J. Laskar +1
Hierarchical two-planet systems, in which the inner body's semi-major axis is between 0.1 and 0.5 AU, usually present high eccentricity values, at least for one of the orbits. As a…
Transit timing variations in WASP-10b induced by stellar activity?
S. C. C. Barros, G. Boue, N. P. Gibson +5
The hot-Jupiter WASP-10b was reported by Maciejewski et al. (2011a,b) to show transit timing variations (TTV) with an amplitude of ~ 3.5 minutes. These authors proposed that the ob…
A new analysis of the WASP-3 system: no evidence for an additional companion
M. Montalto, J. Gregorio, G. Boue' +7
In this work we investigate the problem concerning the presence of additional bodies gravitationally bounded with the WASP-3 system. We present eight new transits of this planet an…
Pumping the eccentricity of exoplanets by tidal effect
Alexandre C. M. Correia, Gwenaël Boué, Jacques Laskar
Planets close to their host stars are believed to undergo significant tidal interactions, leading to a progressive damping of the orbital eccentricity. Here we show that, when the…
Solid-solid interaction in the two body problem
G. Boue, J. Laskar
We consider the solid-solid interactions in the two body problem. The relative equilibria have been previously studied analytically and general motions were numerically analyzed us…