Turbulent Vertical Mixing in Hot Exoplanet Atmospheres

Abstract

Turbulent vertical transport driven by double-diffusive shear instabilities is identified as likely important in hot exoplanet atmospheres. In hot Jupiter atmospheres, the resulting vertical mixing appears sufficient to alleviate the nightside cold trap, thus facilitating the maintenance of nocturnal clouds on these planets. The strong level of vertical mixing expected near hot Jupiter thermal photospheres will impact their atmospheric chemistry and even their vertical structures where cloud radiative feedback proves important.

MNRAS Letters accepted

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Cited by in corpus (20)

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• Atmospheric Dynamics of Hot Giant Planets and Brown Dwarfs
• Aerosols in Exoplanet Atmospheres
• A High Internal Heat Flux and Large Core in a Warm Neptune Exoplanet
• Atmospheric Regimes and Trends on Exoplanets and Brown Dwarfs
• Vertical Tracer Mixing in Hot Jupiter Atmospheres
• A warm Neptune's methane reveals core mass and vigorous atmospheric mixing
• The Effect of 3D Transport-Induced Disequilibrium Carbon Chemistry on the Atmospheric Structure and Phase Curves and Emission Spectra of Hot Jupiter HD 189733b
• Grid of Pseudo-2D Chemistry Models for Tidally-Locked Exoplanets. I. The Role of Vertical and Horizontal Mixing
• Overcast on Osiris: 3D radiative-hydrodynamical simulations of a cloudy hot Jupiter using the parameterised, phase-equilibrium cloud formation code EddySed
• Indications for very high metallicity and absence of methane for the eccentric exo-Saturn WASP-117b
• Hot Jupiter Atmospheric Flows at High Resolution
• Angular momentum transport, layering, and zonal jet formation by the GSF instability: nonlinear simulations at a general latitude
• Shallowness of circulation in hot Jupiters -- Advancing the Ohmic dissipation model
• Semi-Transparent Shear Turbulence in Hot Jupiter Atmospheres
• Spitzer phase curve observations and circulation models of the inflated ultra-hot Jupiter WASP-76b
• Patchy nightside clouds on ultra-hot Jupiters: General Circulation Model simulations with radiatively active cloud tracers
• Compositional Turbulence and Layering in the Gaseous Envelopes of Forming Planets
• Cloudy and Cloud-free Thermal Phase Curves with PICASO: Applications to WASP-43b