Photochemical hazes dramatically alter temperature structure and atmospheric circulation in 3D simulations of hot Jupiters

Abstract

Photochemical hazes are expected to form in hot Jupiter atmospheres and may explain the strong scattering slopes and muted spectral features observed in the transmission spectra of many hot Jupiters. Absorption and scattering by photochemical hazes have the potential to drastically alter temperature structure and atmospheric circulation of these planets but have previously been neglected in general circulation models (GCMs). We present GCM simulations of hot Jupiter HD 189733b that include photochemical hazes as a radiatively active tracer fully coupled to atmospheric dynamics. The influence of haze radiative feedback strongly depends on the assumed haze optical properties. For soot hazes, two distinct thermal inversions form, separated by a local temperature minimum around 10${}^{-5}$ bar caused by upwelling on the dayside mixing air with low haze abundance upwards. The equatorial jet broadens and slows down. The horizontal distribution of hazes remains relatively similar to simulations with radiatively passive tracers. For Titan-type hazes, the equatorial jet accelerates and extends to much lower pressures, resulting in a dramatically different 3D distribution of hazes compared to radiatively passive or soot hazes. Further experimental and observational studies to constrain the optical properties of photochemical hazes will therefore be crucial for understanding the role of hazes in exoplanet atmospheres. In the dayside emission spectrum, for both types of hazes the amplitude of near-infrared features is reduced, while the emitted flux at longer wavelengths ($>$4 $\mu$m) increases. Haze radiative feedback leads to increased phase curve amplitudes in many infrared wavelength regions, mostly due to stronger dayside emission.

arXiv comment31 pages, 18 figures, accepted for publication in ApJ

References in corpus (115)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• The NextGen Model Atmosphere grid for $3000\le \Teff \le 10000\K$
• A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
• Precipitating Condensation Clouds in Substellar Atmospheres
• A Unified Theory for the Atmospheres of the Hot and Very Hot Jupiters: Two Classes of Irradiated Atmospheres
• A map of the day-night contrast of the extrasolar planet HD 189733b
• Atmospheric Circulation and Tides of "51Peg b-like" Planets
• Atmospheric circulation of hot Jupiters: Coupled radiative-dynamical general circulation model simulations of HD 189733b and HD 209458b
• A Framework for Prioritizing the TESS Planetary Candidates Most Amenable to Atmospheric Characterization
• On the radiative equilibrium of irradiated planetary atmospheres
• Infrared Transmission Spectroscopy of the Exoplanets HD209458b and XO-1b Using the Wide Field Camera-3 on the Hubble Space Telescope
• Detection of atmospheric haze on an extrasolar planet: The 0.55 - 1.05 micron transmission spectrum of HD189733b with the Hubble Space Telescope
• Line and Mean Opacities for Ultracool Dwarfs and Extrasolar Planets
• Disequilibrium Carbon, Oxygen, and Nitrogen Chemistry in the Atmospheres of HD 189733b and HD 209458b
• Accurate, Empirical Radii and Masses of Planets and their Host Stars with Gaia Parallaxes
• Neglected Clouds in T and Y Dwarf Atmospheres
• The prevalence of dust on the exoplanet HD 189733b from Hubble and Spitzer observations
• Detection of water absorption in the day side atmosphere of HD 189733 b using ground-based high-resolution spectroscopy at 3.2 microns
• Gaseous Mean Opacities for Giant Planet and Ultracool Dwarf Atmospheres over a Range of Metallicities and Temperatures
• 3D mixing in hot Jupiter atmospheres. I. application to the day/night cold trap in HD 209458b
• The climate of HD 189733b from fourteen transits and eclipses measured by Spitzer
• Albedo and Reflection Spectra of Extrasolar Giant Planets
• From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context
• 3.6 and 4.5 Micron Phase Curves and Evidence for Non-Equilibrium Chemistry in the Atmosphere of Extrasolar Planet HD 189733b
• PandExo: A Community Tool for Transiting Exoplanet Science with JWST & HST
• Atmospheric, Evolutionary, and Spectral Models of the Brown Dwarf Gliese 229 B
• Water Vapor in the Spectrum of the Extrasolar Planet HD 189733b: 1. the Transit
• Transitions in the cloud composition of hot Jupiters
• The Broadband Infrared Emission Spectrum of the Exoplanet HD 189733b
• Homogeneous studies of transiting extrasolar planets. III. Additional planets and stellar models
• Strong Water Absorption in the Dayside Emission Spectrum of the Planet HD 189733b
• Atmospheric Chemistry in Giant Planets, Brown Dwarfs, and Low-Mass Dwarf Stars II. Sulfur and Phosphorus
• Comparative Planetary Atmospheres: Models of TrES-1 and HD209458b
• Multi-Wavelength Constraints on the Day-Night Circulation Patterns of HD 189733b
• Thermal Emission and Albedo Spectra of Super Earths with Flat Transmission Spectra
• Rotation and winds of exoplanet HD 189733 b measured with high-dispersion transmission spectroscopy
• Aerosol Composition of Hot Giant Exoplanets Dominated by Silicates and Hydrocarbon Hazes
• Detection of carbon monoxide in the high-resolution day-side spectrum of the exoplanet HD 189733b
• Stellar activity of planetary host star HD 189733
• Transmission spectral properties of clouds for hot Jupiter exoplanets
• Quantitatively Assessing the Role of Clouds in the Transmission Spectrum of GJ 1214b
• Doppler Signatures of the Atmospheric Circulation on Hot Jupiters
• Atmospheric Circulation of Hot Jupiters: Dayside-Nightside Temperature Differences
• Temperature-Pressure Profile of the hot Jupiter HD 189733b from HST Sodium Observations: Detection of Upper Atmospheric Heating
• Atmospheric Heat Redistribution on Hot Jupiters
• A Two-Dimensional Infrared Map of the Extrasolar Planet HD 189733b
• The atmospheric circulation of a nine-hot Jupiter sample: Probing circulation and chemistry over a wide phase space
• The Deep Blue Color of HD189733b: Albedo Measurements with Hubble Space Telescope/Space Telescope Imaging Spectrograph at Visible Wavelengths
• Spatially resolved eastward winds and rotation of HD 189733b
• Dynamic mineral clouds on HD 189733b I. 3D RHD with kinetic, non-equilibrium cloud formation
• The Atmospheric Circulation of the Hot Jupiter WASP-43b: Comparing Three-Dimensional Models to Spectrophotometric Data
• A non-grey analytical model for irradiated atmospheres. I: Derivation
• Probing the haze in the atmosphere of HD 189733b with HST/WFC3 transmission spectroscopy
• Trends in Atmospheric Properties of Neptune-Size Exoplanets
• HST hot-Jupiter transmission spectral survey: Haze in the atmosphere of WASP-6b
• Haze Production in the Atmospheres of super-Earths and mini-Neptunes: Insights from the Lab
• The Intrinsic Temperature and Radiative-Convective Boundary Depth in the Atmospheres of Hot Jupiters
• The cloudy shape of hot Jupiter thermal phase curves
• 3D modeling of GJ1214b's atmosphere: formation of inhomogeneous high clouds and observational implications
• Formation of Silicate and Titanium Clouds on Hot Jupiters
• 3D modeling of GJ1214b's atmosphere: vertical mixing driven by an anti-Hadley circulation
• Aerosols in Exoplanet Atmospheres
• Minerva-Australis I: Design, Commissioning, & First Photometric Results
• Stellar Diameters and Temperatures VI. High angular resolution measurements of the transiting exoplanet host stars HD 189733 and HD 209458 and implications for models of cool dwarfs
• The High-Resolution Transmission Spectrum of HD 189733b Interpreted with Atmospheric Doppler Shifts from Three-Dimensional General Circulation Models
• The optical transmission spectrum of the hot Jupiter HAT-P-32b: clouds explain the absence of broad spectral features?
• Simulating the cloudy atmospheres of HD 209458 b and HD 189733 b with the 3D Met Office Unified Model
• Three-dimensional atmospheric circulation of hot Jupiters on highly eccentric orbits
• Spitzer Phase Curves of KELT-1b and the Signatures of Nightside Clouds in Thermal Phase Observations
• PLATON II: New Capabilities And A Comprehensive Retrieval on HD 189733b Transit and Eclipse Data
• Implications of three-dimensional chemical transport in hot Jupiter atmospheres: results from a consistently coupled chemistry-radiation-hydrodynamics model
• Clouds in Three-Dimensional Models of Hot Jupiters Over a Wide Range of Temperatures I: Thermal Structures and Broadband Phase Curve Predictions
• A Near-Infrared Transmission Spectrum for the Warm Saturn HAT-P-12b
• Water vapor in the spectrum of the extrasolar planet HD 189733b: 2. The eclipse
• Uniformly hot nightside temperatures on short-period gas giants
• A Characteristic Transmission Spectrum dominated by H${}_2$O applies to the majority of HST/WFC3 exoplanet observations
• Equatorial anti-rotating day side wind flow in WASP-43b elicited by deep wind jets?
• Photochemical Haze Formation in the Atmospheres of super-Earths and mini-Neptunes
• Atmospheric circulation of hot Jupiters: insensitivity to initial conditions
• Modeled Temperature-Dependent Clouds with Radiative Feedback in Hot Jupiter Atmospheres
• Wind of Change: retrieving exoplanet atmospheric winds from high-resolution spectroscopy
• The Effect of 3D Transport-Induced Disequilibrium Carbon Chemistry on the Atmospheric Structure and Phase Curves and Emission Spectra of Hot Jupiter HD 189733b
• 3D simulations of photochemical hazes in the atmosphere of hot Jupiter HD 189733b
• Super-Rayleigh Slopes in Transmission Spectra of Exoplanets Generated by Photochemical Haze
• The 3D thermal, dynamical and chemical structure of the atmosphere of HD 189733b: implications of wind-driven chemistry for the emission phase curve
• Aggregate Hazes in Exoplanet Atmospheres
• Exonephology: Transmission spectra from a 3D simulated cloudy atmosphere of HD209458b
• Simulating gas giant exoplanet atmospheres with Exo-FMS: Comparing semi-grey, picket fence and correlated-k radiative-transfer schemes
• Modeling the effects of inhomogeneous aerosols on the hot Jupiter Kepler-7b's atmospheric circulation
• Atmospheric Circulation of Eccentric Hot Jupiter HAT-P-2b
• Photochemical hazes in sub-Neptunian atmospheres with focus on GJ 1214 b
• Chemistry of Temperate Super-Earth and Mini-Neptune Atmospheric Hazes from Laboratory Experiments
• HST PanCET program: A Cloudy Atmosphere for the promising JWST target WASP-101b
• Photochemistry in hot H2-dominated exoplanet atmospheres
• Overcast on Osiris: 3D radiative-hydrodynamical simulations of a cloudy hot Jupiter using the parameterised, phase-equilibrium cloud formation code EddySed
• Optical phase curves as diagnostics for aerosol composition in exoplanetary atmospheres
• Haze Evolution in Temperate Exoplanet Atmospheres Through Surface Energy Measurements
• Transmission spectroscopy of HAT-P-32b with the LBT: confirmation of clouds/hazes in the planetary atmosphere
• Starspots on WASP-85
• A Hubble Space Telescope Search for a Sub-Earth-Sized Exoplanet in the GJ 436 System
• Impact of photochemical hazes and gases on exoplanet atmospheric thermal structure
• The Impact of Mixing Treatments on Cloud Modelling in 3D Simulations of Hot Jupiters
• The HST PanCET Program: An Optical to Infrared Transmission Spectrum of HAT-P-32Ab
• The geometric albedo of the hot Jupiter HD 189733b measured with CHEOPS
• Titan organic aerosols: molecular composition and structure of laboratory analogues inferred from systematic pyrolysis gas chromatography mass spectrometry analysis
• VUV spectroscopy of carbon dust analogs: contribution to interstellar extinction
• Signatures of Clouds in Hot Jupiter Atmospheres: Modeled High Resolution Emission Spectra from 3D General Circulation Models
• Photochemical hazes can trace the C/O ratio in exoplanet atmospheres
• A large range of haziness conditions in hot-Jupiter atmospheres
• Detection of Aerosols at Microbar Pressures in an Exoplanet Atmosphere
• Discriminating between hazy and clear hot-Jupiter atmospheres with CARMENES
• First exoplanet transit observation with the Stratospheric Observatory for Infrared Astronomy: Confirmation of Rayleigh scattering in HD 189733 b with HIPO
• The near-UV transit of HD 189733b with the XMM-Newton Optical Monitor

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• Multiple Clues for Dayside Aerosols and Temperature Gradients in WASP-69 b from a Panchromatic JWST Emission Spectrum
• Behind the Mask: can HARMONI@ELT detect biosignatures in the reflected light of Proxima b?
• Dynamics and Clouds in Planetary Atmospheres from Telescopic Observations
• Clouds and Hazes in GJ 1214b's Metal-Rich Atmosphere
• SWEET-Cat: A view on the planetary mass-radius relation
• Cloudy mornings and clear evenings on a gas giant exoplanet
• Under the magnifying glass: A combined 3D model applied to cloudy warm Saturn type exoplanets around M-dwarfs
• The Impact of Irradiation on the Radius and Thermal Evolution of Transiting Brown Dwarfs
• Warm Jupiters around M-dwarfs are great opportunities for extensive chemical, cloud and haze characterisation with JWST
• Cloudy solutions for the clear skies of WASP-80b: 3D cloud feedback on the atmosphere and spectra of a warm Jupiter