ExoMol molecular line lists XXX: a complete high-accuracy line list for water

Abstract

A new line list for H${}_2$${}^{16}$O is presented. This line list, which is called POKAZATEL, includes transitions between rotation-vibrational energy levels up to 41000 cm${}^{-1}$ in energy and is the most complete to date. The potential energy surface (PES) used for producing the line list was obtained by fitting a high-quality ab initio PES to experimental energy levels with energies of 41000 cm${}^{-1}$ and for rotational excitations up to $J=5$. The final line list comprises all energy levels up to 41000 cm${}^{-1}$ and rotational angular momentum $J$ up to 72. An accurate ab initio dipole moment surface (DMS) was used for the calculation of line intensities and reproduces high-precision experimental intensity data with an accuracy close to 1 %. The final line list uses empirical energy levels whenever they are available, to ensure that line positions are reproduced as accurately as possible. The POKAZATEL line list contains over 5 billion transitions and is available from the ExoMol website (www.exomol.com) and the CDS database.

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• HST/WFC3 Constraints on the Abundances of OH and FeH in the Atmosphere of the Ultra-Hot Neptune LTT-9779 b
• Atmospheric retrieval of Subaru/IRD high-resolution spectrum of the archetype T-type brown dwarf Gl 229 B
• A Large-scale Approach to Modelling Molecular Biosignatures: The Diatomics
• A First Look at CRIRES+: Performance Assessment and Exoplanet Spectroscopy
• Near the Runaway: The Climate and Habitability of Teegarden's Star b
• The GAPS programme at TNG LXXI. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)
• Direct Images of CO2 Absorption in the Atmosphere of a Super-Jupiter: Enhanced Metallicity Suggestive of Formation in a Disk
• The dark and featureless surface of rocky exoplanet LHS 3844 b from JWST mid-infrared spectroscopy
• Chemical analysis of the Milky Way's Nuclear Star Cluster: Evidence for a metallicity gradient
• Abundant hydrocarbons in a buried galactic nucleus with signs of carbonaceous grain and polycyclic aromatic hydrocarbon processing
• Silicate Sundogs: Probing the Effects of Grain Directionality in Exoplanet Observations
• Exploring Synergies between Twinkle and Ariel: a Pilot Study
• A Measurement of the Water Abundance in the Atmosphere of the Hot Jupiter WASP-43b with High-resolution Cross-correlation Spectroscopy
• Disentangling Atmospheric Compositions of K2-18 b with Next Generation Facilities
• A new look into the atmospheric composition of WASP-39 b
• Time-resolved JWST Retrieval Analysis of the Coldest Brown Dwarf: Temperature and Chemical Variations in WISE 0855-07
• Using observations of escaping H/He to constrain the atmospheric composition of sub-Neptunes
• Supergiant GCIRS 22 in the Milky Way Nuclear Star Cluster: Revised alpha abundances
• All along the line of sight: a closer look at opening angles and absorption regions in the atmospheres of transiting exoplanets
• Impact of Variable Photospheric Radius on Exoplanet Atmospheric Retrievals
• JWST high-contrast spectroscopy with speckle modelling: Atmospheric retrievals of the T dwarf companion HD 19467 B
• Information content of JWST transmission spectroscopy of the exoplanet HAT-P-12b from the optical to the mid-infrared
• Disentangling auroral, cloud and magnetic spot driven variability in three early L-dwarfs with HST/WFC3
• Chemical diversity of the atmospheres and interiors of sub-Neptunes: a case study of GJ 436 b
• The effect of JWST/NIRSpec data reduction on the retrieval of WASP-39b atmospheric properties
• The HUSTLE Program: The UV to Near-IR Transmission Spectrum of the Hot Jupiter KELT-7b