activity
20212026
most citedThe case of HD 106906 debris disc: A binary's revenge

16 citations · 44 across the 12 of their papers we have counts for

collaborators

14 papers

astro-ph.EP2026

Rattling Resonant Chains with Dynamical Tides and Parametric Resonance Passage

Mohammad Farhat, Eugene Chiang

Close-in sub-Neptunes are born in mean-motion resonant chains that break apart on a timescale of 100 Myr. If the chains are first ''rattled'' --- have their free eccentriciti…

astro-ph.EP2026

Super-Earth Interiors Shrink by About 10% as They Crystallise

Tim Lichtenberg, Mara Attia, Harrison Nicholls +26

Super-Earth exoplanets are among the most abundant planets known, yet their bulk densities leave the interior state degenerate. The static structure models used to interpret them,…

astro-ph.EP2026

Magma Ocean Waves and Thermal Variability on Lava Worlds

Mohammad Farhat, Eugene Chiang

Lava worlds are rocky planets with dayside skins made molten by stellar irradiation. Tidal heating on these shortest-period planets is more than skin deep. We show how orbital ecce…

astro-ph.EP2025

An analytical framework for atmospheric tides on rocky planets. I. Formulation

Pierre Auclair-Desrotour, Mohammad Farhat, Gwenaël Boué +1

Atmospheric thermal tides arise from the diurnal contrast in stellar irradiation. They exert a significant influence on the long-term rotational evolution of rocky planets because…

astro-ph.EP2025★ 8 cited

Interior redox state effects on the stability of secondary atmospheres and observational manifestations: LP 791-18 d as a case study for outgassing rocky exoplanets

Leonardos Gkouvelis, Francisco J. Pozuelos, Thomas Drant +3

Recent advances in space and ground-based facilities now enable atmospheric characterization of a selected sample of rocky exoplanets. These atmospheres offer key insights into pla…

astro-ph.EP2024

Tides on Lava Worlds: Application to Close-in Exoplanets and the Early Earth-Moon System

Mohammad Farhat, Pierre Auclair-Desrotour, Gwenaël Boué +2

Understanding the physics of planetary magma oceans has been the subject of growing efforts, in light of the increasing abundance of Solar system samples and extrasolar surveys. A…

astro-ph.EP2024

Thermal tides on rocky planets through a novel fully analytical solution

Pierre Auclair-Desrotour, Mohammad Farhat, Gwenaël Boué +2

Thermal tides are atmospheric tides caused by variations in day-night insolation, similar to gravitational tides but with key differences. While both result in delayed mass redistr…

astro-ph.EP2024★ 6 cited

Tidal evolution of Earth-like planets in the habitable zone of low-mass stars

E. F. S. Valente, A. C. M. Correia, P. Auclair-Desrotour +2

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…

astro-ph.EP2023

Can one hear supercontinents in the tides of ocean planets?

Pierre Auclair-Desrotour, Mohammad Farhat, Gwenaël Boué +2

Recent observations and theoretical progress made about the history of the Earth-Moon system suggest that tidal dissipation in oceans primarily drives the long term evolution of or…

astro-ph.EP2023

Thermal tides in neutrally stratified atmospheres: Revisiting the Earth's Precambrian rotational equilibrium

Mohammad Farhat, Pierre Auclair-Desrotour, Gwenaël Boué +2

Rotational dynamics of the Earth, over geological timescales, have profoundly affected local and global climatic evolution, probably contributing to the evolution of life. To bette…

astro-ph.EP2023★ 1 cited

Did atmospheric thermal tides cause a daylength locking in the Precambrian? A review on recent results

Jacques Laskar, Mohammad Farhat, Margriet L. Lantink +3

After the initial suggestion by Zahnle and Walker (1987) that the torque accelerating the spin rate of the Earth and produced by the heating of the atmosphere by the Sun could coun…

astro-ph.EP2022★ 16 cited

The case of HD 106906 debris disc: A binary's revenge

Mohammad Farhat, Antranik Sefilian, Jihad Touma

Debris disc architecture presents [exo-]planetary scientists with precious clues for processes of planet formation and evolution, including constraints on planetary mass perturbers…

astro-ph.EP2022

The Resonant Tidal Evolution of the Earth-Moon Distance

Mohammad Farhat, Pierre Auclair-Desrotour, Gwenaël Boué +1

Due to tidal interactions in the Earth-Moon system, the spin of the Earth slows down and the Moon drifts away. This recession of the Moon is now measured with great precision, but…

astro-ph.EP2021★ 13 cited

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…