Spin and orbital dynamics of planets undergoing thermal atmospheric tides using a vectorial approach

Abstract

Earth-mass planets are expected to have atmospheres and experience thermal tides raised by the host star. These tides transfer energy to the planet that can counter the dissipation from bodily tides. Indeed, even a relatively thin atmosphere can drive the rotation of these planets away from the synchronous state. Here we revisit the dynamical evolution of planets undergoing thermal atmospheric tides. We use a novel approach based on a vectorial formalism, which is frame independent and valid for any configuration of the system, including any eccentricity and obliquity values. We provide the secular equations of motion after averaging over the mean anomaly and the argument of the pericenter, which are suitable to model the long-term spin and orbital evolution of the planet.

15 pages, 1 figure, 2 tables

References in corpus (12)

• Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the Habitable Zone
• Asynchronous rotation of Earth-mass planets in the habitable zone of lower-mass stars
• Tidal evolution of hierarchical and inclined systems
• Deformation and tidal evolution of close-in planets and satellites using a Maxwell viscoelastic rheology
• Atmospheres of Rocky Exoplanets
• The atmospheric circulation and climate of terrestrial planets orbiting Sun-like and M-dwarf stars over a broad range of planetary parameters
• The New Generation Planetary Population Synthesis (NGPPS). V. Predetermination of planet types in global core accretion models
• Compact planetary systems perturbed by an inclined companion: I. Vectorial representation of the secular model
• Secular and tidal evolution of circumbinary systems
• Spin evolution of Earth-sized exoplanets, including atmospheric tides and core-mantle friction
• A generic frequency dependence for the atmospheric tidal torque of terrestrial planets
• Tidal evolution for any rheological model using a vectorial approach expressed in Hansen coefficients

Cited by in corpus (2)

• Tidal evolution of Earth-like planets in the habitable zone of low-mass stars
• Exoplanets synchronization in the habitable zone: Learning from Venus' retrograde rotation