115 citations · 709 across the 37 of their papers we have counts for
28 papers · 1 filter
Drifts of the sub-stellar points of the TRAPPIST-1 planets
Revol Alexandre, Émeline Bolmont, Mariana Sastre +4
Accurate modeling of tidal interactions is crucial for interpreting recent JWST observations of the thermal emissions of TRAPPIST-1~b and c and for characterizing the surface condi…
A roadmap for the atmospheric characterization of terrestrial exoplanets with JWST
TRAPPIST-1 JWST Community Initiative, :, Julien de Wit +80
Ultra-cool dwarf stars are abundant, long-lived, and uniquely suited to enable the atmospheric study of transiting terrestrial companions with JWST. Amongst them, the most prominen…
Tidal interactions shape period ratios in planetary systems with three-body resonant chains
Carolina Charalambous, Jean Teyssandier, Anne-Sophie Libert
These last years several Systems with Tightly packed Inner Planets in the super-Earth mass regime have been discovered harboring chains of resonances. It is generally believed that…
Resonance capture and long-term evolution of planets in binary star systems
Arnaud Roisin, Nikita Doukhanin, Jean Teyssandier +1
The aim of this work is to study the impact of a binary companion on the evolution of two-planet systems during both the type-II migration phase and their long-term evolution after…
Proximity of exoplanets to first-order mean-motion resonances
Carolina Charalambous, Jean Teyssandier, Anne-Sophie Libert
Planetary formation theories and, more specifically, migration models predict that planets can be captured in mean-motion resonances (MMRs) during the disc phase. The distribution…
TRAPPIST-1: Dynamical analysis of the transit-timing variations and origin of the resonant chain
Jean Teyssandier, Anne-Sophie Libert, Eric Agol
We analyze solutions drawn from the recently published posterior distribution of the TRAPPIST-1 system, which consists of seven Earth-size planets appearing to be in a resonant cha…
Bridges and gaps at low-eccentricity first-order resonances
Kyriaki I. Antoniadou, Anne-Sophie Libert
Previous works on the divergence of first-order mean-motion resonances (MMRs) have studied in detail the extent of the pericentric and apocentric libration zones of adjacent first-…
Planetary migration in precessing disks for S-type wide binaries
Arnaud Roisin, Jean Teyssandier, Anne-Sophie Libert
The discovery of numerous circumprimary planets in the last few years has brought to the fore the question of planet formation in binary systems. The significant dynamical influenc…
Inclination-type resonance in two-planet systems
Sotiris Sotiriadis, Anne-Sophie Libert
We investigate the inclination-growth mechanisms for two-planet systems during the late protoplanetary disc phase. In previous works, much attention has been directed to the inclin…
Evolution of a migrating giant planet in the presence of an inclined binary companion
Arnaud Roisin, Anne-Sophie Libert
Aims. There are a growing number of giant planets discovered moving around one stellar component of a binary star, most of which have very diverse eccentricity. These discoveries r…
Transit-Timing Variation Signature of Planet Migration: The Case of K2-24
Jean Teyssandier, Anne-Sophie Libert
The convergent migration of two planets in a gaseous disc can lead to capture in mean motion resonance (MMR). In addition, pairs of planets in or near MMRs are known to produce str…
Exploiting periodic orbits as dynamical clues for Kepler and K2 systems
Kyriaki I. Antoniadou, Anne-Sophie Libert
Many extrasolar systems possessing planets in mean-motion resonance or resonant chain have been discovered to date. The transit method coupled with transit timing variation analysi…
Resonant Laplace-Lagrange theory for extrasolar systems in mean-motion resonance
Marco Sansottera, Anne-Sophie Libert
Extrasolar systems with planets on eccentric orbits close to or in mean-motion resonances are common. The classical low-order resonant Hamiltonian expansion is unfit to describe th…
On the 3D secular dynamics of radial-velocity-detected planetary systems
Mara Volpi, Arnaud Roisin, Anne-Sophie Libert
Aims. To date, more than 600 multi-planetary systems have been discovered. Due to the limitations of the detection methods, our knowledge of the systems is usually far from complet…
Spatial resonant periodic orbits in the restricted three-body problem
K. I. Antoniadou, A. -S. Libert
The quest of exo-Earths has become a prominent field. In this work, we study the stability of non-coplanar planetary configurations consisting of an inclined inner terrestrial plan…
Dynamical evolution of triple-star systems by Lidov-Kozai cycles and tidal friction
Manon Bataille, Anne-Sophie Libert, Alexandre C. M. Correia
Many triple-star systems have an inner pair with an orbital period of a few days only. A common mechanism to explain the short-period pile-up present in the observations is the mig…
Origin and continuation of 3/2, 5/2, 3/1, 4/1 and 5/1 resonant periodic orbits in the circular and elliptic restricted three-body problem
Kyriaki I. Antoniadou, Anne-Sophie Libert
We consider a planetary system consisting of two primaries, namely a star and a giant planet, and a massless secondary, say a terrestrial planet or an asteroid, which moves under t…
Puzzling out the coexistence of terrestrial planets and giant exoplanets. The 2/1 resonant periodic orbits
Kyriaki I. Antoniadou, Anne-Sophie Libert
Hundreds of giant planets have been discovered so far and the quest of exo-Earths in giant planet systems has become intriguing. In this work, we aim to address the question of the…
Influence of periodic orbits on the formation of giant planetary systems
Anne-Sophie Libert, Sotiris Sotiriadis, Kyriaki I. Antoniadou
The late-stage formation of giant planetary systems is rich in interesting dynamical mechanisms. Previous simulations of three giant planets initially on quasi-circular and quasi-c…
Formation of terrestrial planets in eccentric and inclined giant planet systems
Sotiris Sotiriadis, Anne-Sophie Libert, Sean N. Raymond
Evidence of mutually inclined planetary orbits has been reported for giant planets these last years. Here we aim to study the impact of eccentric and inclined massive giant planets…
The language of exoplanet ranking metrics needs to change
Elizabeth Tasker, Joshua Tan, Kevin Heng +14
We have found many Earth-sized worlds but we have no way of determining if their surfaces are Earth-like. This makes it impossible to quantitatively compare habitability, and prete…
Highly inclined and eccentric massive planets. II. Planet-planet interactions during the disc phase
Sotiris Sotiriadis, Anne-Sophie Libert, Bertram Bitsch +1
We aim to investigate the influence of the eccentricity and inclination damping due to planet-disc interactions on the final configurations of the systems, generalizing previous st…
Habitability of planets on eccentric orbits: the limits of the mean flux approximation
Emeline Bolmont, Anne-Sophie Libert, Jérémy Leconte +1
Contrary to Earth, which has a small orbital eccentricity, some exoplanets discovered in the insolation habitable zone (HZ) have high orbital eccentricities (e.g., up to an eccentr…
Highly inclined and eccentric massive planets I: Planet-disc interactions
Bertram Bitsch, Aurélien Crida, Anne-Sophie Libert +1
In the Solar System, planets have a small inclination with respect to the equatorial plane of the Sun, but there is evidence that in extrasolar systems the inclination can be very…