ExoMol line lists -- LVI: The SO line list, MARVEL analysis of experimental transition data and refinement of the spectroscopic model

Abstract

A semi-empirical IR/Vis line list, SOLIS, for the sulphur monoxide molecule ${}^{32}$S${}^{16}$O is presented. SOLIS includes accurate empirical rovibrational energy levels, uncertainties, lifetimes, quantum number assignments, and transition probabilities in the form of Einstein $A$ coefficients covering the $X{}^3{\Sigma }^{-}$, $a{}^1{\Delta }^{}$, $b{}^1{\Sigma }^{+}$, $A{}^3\Pi$, $B{}^3{\Sigma }^{-}$, $X{}^{\prime \prime 3}{\Sigma }^{+}$, $A{}^{\prime 3}\Delta$ and $e{}^1\Pi$ systems and wavenumber range up to 43303.5 cm${}^{-1}$ ($\ge 230.93$ nm) with $J\le 69$. SOLIS has been computed by solving the rovibronic Schrödinger equation for diatomics using the general purpose variational code Duo and starting from a published ab initio spectroscopic model of SO (including potential energy curves, coupling curves, (transition) dipole moment curves) which is refined to experimental data. To this end, a database of 50106 experimental transitions, 48972 being non-redundant, has been compiled through the analysis of 29 experimental sources, and a self-consistent network of 8558 rovibronic energy levels for the $X$, $a$, $b$, $A$, $B$, and $C$ electronic states has been generated with the MARVEL algorithm covering rotational and vibrational quantum numbers $J\le 69$ and $v\le 30$ and energies up to 52350.40 cm${}^{-1}$. No observed transitions connect to the $B{}^3{\Sigma }^{-}(v=0)$ state which is required to model perturbations correctly, so we leave fitting the $B{}^3{\Sigma }^{-}$ and $C{}^3\Pi$ state UV model to a future project. The SO line list is available at ExoMol from www.exomol.com.

16 pages, 12 figures

References in corpus (13)

• petitRADTRANS: a Python radiative transfer package for exoplanet characterization and retrieval
• Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM
• Photochemically-produced SO${}_2$ in the atmosphere of WASP-39b
• The 2020 release of the ExoMol database: molecular line lists for exoplanet and other hot atmospheres
• Modeling Sulfur Depletion in Interstellar Clouds
• The ARCiS framework for Exoplanet Atmospheres: Modelling Philosophy and Retrieval
• ExoMol molecular line lists - XXIII: spectra of PO and PS
• ExoMol line lists XXIV: A new hot line list for silicon monohydride, SiH
• ExoMol molecular line lists - XVII The rotation-vibration spectrum of hot SO${}_3$
• A high-resolution line list for AlO
• An ab initio study of the rovibronic spectrum of sulphur monoxide (SO): diabatic vs. adiabatic representation
• Chemical composition of the circumstellar disk around AB Aurigae
• Ultraviolet photoabsorption in the $B{}^3{\Sigma }^{-}-X{}^3{\Sigma }^{-}$ and $C{}^3\Pi -X{}^3{\Sigma }^{-}$ band systems of SO sulphur isotopologues

Cited by in corpus (5)

• Data availability and requirements relevant for the Ariel space mission and other exoplanet atmosphere applications
• BOWIE-ALIGN: JWST reveals hints of planetesimal accretion and complex sulphur chemistry in the atmosphere of the misaligned hot Jupiter WASP-15b
• Characterising the Atmosphere of 55 Cancri e: 1D Forward Model Grid for Current and Future JWST Observations
• Conditions for radiative zones in the molecular hydrogen envelope of Jupiter and Saturn: The role of alkali metals
• ExoMolHR: A Relational Database of Empirical High-Resolution Molecular Spectra