No evidence for radius inflation in hot Jupiters from vertical advection of heat
arXiv:2210.01466 · doi:10.1051/0004-6361/202244797
Abstract
Understanding the radiative-dynamical coupling between upper photosphere and deeper atmosphere is a key in understanding the abnormal large radii of hot Jupiters. One needs very long integration times of 3D general circulation models (GCMs) with self consistent radiative transfer to achieve a better understanding of the feedback process between dynamics and radiation. We here present the longest 3D non-gray GCM study (86000 d) of an ultra hot Jupiter (WASP-76 b) published to this date that reached a final converged state. Furthermore, we present a method that can be used to accelerate the path towards temperature convergence in the deep atmospheric layers. We find that the final converged temperature profile is cold in the deep atmospheric layers, lacking any sign of vertical transport of potential temperature by large scale atmospheric motions. We thus conclude that the coupling between radiation and dynamics alone is not sufficient to explain the abnormal large radii of inflated hot gas giants.
Accepted for publication in Astronomy and Astrophysics, Letters to the editor
References in corpus (28)
- petitRADTRANS: a Python radiative transfer package for exoplanet characterization and retrieval
- Nightside condensation of iron in an ultra-hot giant exoplanet
- Inflating Hot Jupiters With Ohmic Dissipation
- ExoMol molecular line lists XXXV: a rotation-vibration line list for hot ammonia
- ExoMol molecular line lists - XVI: The rotation-vibration spectrum of hot HS
- ExoMol line lists XVIII. The high temperature spectrum of VO
- ExoMol line lists -- XXXIX. Ro-vibrational molecular line list for CO
- Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
- ExoMol line lists VII: The rotation-vibration spectrum of phosphine up to 1500 K
- A hybrid line list for CH and hot methane continuum
- The Atmospheric Circulation of Ultra-hot Jupiters
- Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) - II. A broadened sodium feature on the ultra-hot giant WASP-76b
- Atmospheric Dynamics of Hot Giant Planets and Brown Dwarfs
- Decomposing the Iron Cross-Correlation Signal of the Ultra-Hot Jupiter WASP-76b in Transmission using 3D Monte-Carlo Radiative Transfer
- An Atomic Spectral Survey of WASP-76b: Resolving Chemical Gradients and Asymmetries
- Clouds in Three-Dimensional Models of Hot Jupiters Over a Wide Range of Temperatures I: Thermal Structures and Broadband Phase Curve Predictions
- Exploring the Effects of Active Magnetic Drag in a GCM of the Ultra-Hot Jupiter WASP-76b
- Evidence of Three Mechanisms Explaining the Radius Anomaly of Hot Jupiters
- Confirmation of Asymmetric Iron Absorption in WASP-76b with HARPS
- Idealised simulations of the deep atmosphere of hot jupiters: Deep, hot, adiabats as a robust solution to the radius inflation problem
- Hot-Jupiter Inflation due to Deep Energy Deposition
- Indications for very high metallicity and absence of methane for the eccentric exo-Saturn WASP-117b
- Numerical Convergence of Hot-Jupiter Atmospheric Flow Solutions
- Understanding the atmospheric properties and chemical composition of the ultra-hot Jupiter HAT-P-7b: III. Changing ionisation and the emergence of an ionosphere
- The THOR+HELIOS general circulation model: multi-wavelength radiative transfer with accurate scattering by clouds/hazes
- Shallowness of circulation in hot Jupiters -- Advancing the Ohmic dissipation model
- Exploring deep and hot adiabats as a potential solution to the radius inflation problem in brown dwarfs: Long-timescale models of the deep atmospheres of KELT-1b, Kepler-13Ab, and SDSS1411B
- Influences of internal forcing on atmospheric circulations of irradiated giant planets
Cited by in corpus (14)
- SO2, silicate clouds, but no CH4 detected in a warm Neptune
- A High Internal Heat Flux and Large Core in a Warm Neptune Exoplanet
- GASTLI: An open-source coupled interior-atmosphere model to unveil gas giant composition
- The effect of interior heat flux on the atmospheric circulation of hot and ultra-hot Jupiters
- Three Warm Jupiters around Solar-analog stars detected with TESS
- Why heterogeneous cloud particles matter: Iron-bearing species and cloud particle morphology affects exoplanet transmission spectra
- Photodissociation and induced chemical asymmetries on ultra-hot gas giants. A case study of HCN on WASP-76 b
- Evidence of Radius Inflation in Radiative GCM Models of WASP-76b due to the Advection of Potential Temperature
- ESPRESSO reveals blueshifted neutral iron emission lines on the dayside of WASP-76 b
- Under the magnifying glass: A combined 3D model applied to cloudy warm Saturn type exoplanets around M-dwarfs
- Inhomogeneous magnetic coupling in exoplanets: the stop & go of WASP-18 b's atmospheric flows
- A grid of self-consistent MSG (MARCS-StaticWeather-GGchem) cool stellar, sub-stellar, and exoplanetary model atmospheres
- Accelerating exoplanet climate modelling: A machine learning approach to complement 3D GCM grid simulations
- Examining the detectability of ringing on highly eccentric exoplanets