A library of ATMO forward model transmission spectra for hot Jupiter exoplanets

Abstract

We present a grid of forward model transmission spectra, adopting an isothermal temperature-pressure profile, alongside corresponding equilibrium chemical abundances for 117 observationally significant hot exoplanets (Equilibrium Temperatures of 547-2710 K). This model grid has been developed using a 1D radiative-convective-chemical equilibrium model termed ATMO, with up-to-date high temperature opacities. We present an interpretation of observations of ten exoplanets, including best fit parameters and ${\chi }^2$ maps. In agreement with previous works, we find a continuum from clear to hazy/cloudy atmospheres for this sample of hot Jupiters. The data for all the 10 planets are consistent with sub-solar to solar C/O ratio, 0.005 to 10 times solar metallicity and water rather than a methane dominated infrared spectra. We then explore the range of simulated atmospheric spectra for different exoplanets, based on characteristics such as temperature, metallicity, C/O-ratio, haziness and cloudiness. We find a transition value for the metallicity between 10 and 50 times solar, which leads to substantial changes in the transmission spectra. We also find a transition value of C/O ratio, from water to carbon species dominated infrared spectra, as found by previous works, revealing a temperature dependence of this transition point ranging from $\sim$0.56 to $\sim$1-1.3 for equilibrium temperatures from $\sim$900 to $\sim$2600 K. We highlight the potential of the spectral features of HCN and C${}_2$H${}_2$ to constrain the metallicities and C/O ratios of planets, using JWST observations. Finally, our entire grid ($\sim$460,000 simulations) is publicly available and can be used directly with the JWST simulator PandExo for planning observations.

No changes in replacement, main paper now made visible on arXiv as earlier the published Erratum associated with the paper was instead visible. 34 pages, 28 figures. Accepted for Publication in MNRAS. Full grid of model transmission spectra and chemical abundances are available here, https://drive.google.com/drive/folders/1tvlgSWyEAA0cX_yxnA5URD4Zo3Zj4GcH

References in corpus (61)

• TrES-1: The Transiting Planet of a Bright K0V Star
• Sodium Absorption From the Exoplanetary Atmosphere of HD189733b Detected in the Optical Transmission Spectrum
• Atmospheric Retrieval for Super-Earths: Uniquely Constraining the Atmospheric Composition with Transmission Spectroscopy
• Rayleigh scattering in the transit spectrum of HD 189733b
• Thermal structure of an exoplanet atmosphere from phase-resolved emission spectroscopy
• Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres
• Water Vapor in the Spectrum of the Extrasolar Planet HD 189733b: 1. the Transit
• Can TiO Explain Thermal Inversions in the Upper Atmospheres of Irradiated Giant Planets?
• WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE
• Ground-based detection of sodium in the transmission spectrum of exoplanet HD209458b
• An ultrahot gas-giant exoplanet with a stratosphere
• Equilibrium chemistry down to 100 K - Impact of silicates and phyllosilicates on carbon/oxygen ratio
• HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting one Member of a Stellar Binary
• Fingering convection and cloudless models for cool brown dwarf atmospheres
• A chemical model for the atmosphere of hot Jupiters
• HST hot-Jupiter transmission spectral survey: detection of potassium in WASP-31b along with a cloud deck and Rayleigh scattering
• Transmission spectral properties of clouds for hot Jupiter exoplanets
• ExoMol line lists XVIII. The high temperature spectrum of VO
• HAT-P-26b: A Neptune-Mass Exoplanet with a Well Constrained Heavy Element Abundance
• Observing transiting planets with JWST -- Prime targets and their synthetic spectral observations
• XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary
• ExoMol line lists VII: The rotation-vibration spectrum of phosphine up to 1500 K
• The Effects of Consistent Chemical Kinetics Calculations on the Pressure-Temperature Profiles and Emission Spectra of Hot Jupiters
• A Transiting Planet of a Sun-like Star
• The 4.5 $\mu$m full-orbit phase curve of the hot Jupiter HD 209458b
• Pseudo 2D chemical model of hot Jupiter atmospheres: application to HD 209458b and HD 189733b
• HAT-P-12b: A Low-Density Sub-Saturn Mass Planet Transiting a Metal-Poor K Dwarf
• WASP-4b: a 12th-magnitude transiting hot-Jupiter in the Southern hemisphere
• HST hot-Jupiter transmission spectral survey: Haze in the atmosphere of WASP-6b
• A global analysis of Spitzer and new HARPS data confirms the loneliness and metal-richness of GJ 436 b
• HATS-6b: A Warm Saturn Transiting an Early M Dwarf Star, and a Set of Empirical Relations for Characterizing K and M Dwarf Planet Hosts
• WASP-42 b and WASP-49 b: two new transiting sub-Jupiters
• Treatment of overlapping gaseous absorption with the correlated-k method in hot Jupiter and brown dwarf atmosphere models
• HAT-P-3b: A heavy-element rich planet transiting a K dwarf star
• Determining atmospheric conditions at the terminator of the hot-Jupiter HD209458b
• TrES-4: A Transiting Hot Jupiter of Very Low Density
• WASP-80b: a gas giant transiting a cool dwarf
• HAT-P-6b: A Hot Jupiter transiting a bright F star
• New chemical scheme for studying carbon-rich exoplanet atmospheres
• Analysis of Spitzer Spectra of Irradiated Planets: Evidence for Water Vapor?
• From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b and WASP-138b
• WASP-7: The brightest transiting-exoplanet system in the Southern hemisphere
• The Transiting System GJ1214: High-Precision Defocused Transit Observations and a Search for Evidence of Transit Timing Variation
• Warm Ice Giant GJ 3470b. II Revised Planetary and Stellar Parameters from Optical to Near-infrared Transit Photometry
• KELT-17b: A hot-Jupiter transiting an A-star in a misaligned orbit detected with Doppler tomography
• High-precision photometry by telescope defocussing. VI. WASP-24, WASP-25 and WASP-26
• HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Re-Inflation of Close-In Giant Planets
• WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus
• The GAPS Programme with HARPS-N at TNG. III: The retrograde orbit of HAT-P-18b
• WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system
• The GAPS Programme with HARPS-N@TNG V. A comprehensive analysis of the XO-2 stellar and planetary systems
• The low density transiting exoplanet WASP-15b
• Fully scalable forward model grid of exoplanet transmission spectra
• WASP-117b: a 10-day-period Saturn in an eccentric and misaligned orbit
• Physical properties of the WASP-67 planetary system from multi-colour photometry
• Contamination from a nearby star cannot explain the anomalous transmission spectrum of the ultra-short period giant planet WASP-103b
• WASP-92b, WASP-93b and WASP-118b: Three new transiting close-in giant planets
• The well-aligned orbit of WASP-84b: evidence for disc migration
• The GAPS Programme with HARPS-N@TNG VI: The Curious Case of TrES-4b
• WASP-20 is a close visual binary with a transiting hot Jupiter
• HATS-19b, HATS-20b, HATS-21b: Three Transiting Hot-Saturns Discovered by the HATSouth Survey

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• Optical Transmission Spectra of Hot-Jupiters: Effects of Scattering
• Temperature-chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares
• How do we optimally sample model grids of exoplanet spectra?
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• ACCESS: An optical transmission spectrum of the high-gravity, hot Jupiter HAT-P-23b
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• Refractory and Volatile Species in the UV-to-IR Transmission Spectrum of Ultra-hot Jupiter WASP-178b with HST and JWST
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