ExoMol molecular line lists - XVI: The rotation-vibration spectrum of hot H$_2$S

TL;DR

This paper introduces the AYT2 line list for hot H$_2$S, providing extensive rotation-vibration spectral data up to high temperatures, useful for astrophysical and atmospheric modeling.

Contribution

The AYT2 line list is a comprehensive, empirically-adjusted spectral database for H$_2$S covering a wide range of energies and temperatures, enhancing previous spectral data.

Findings

114 million transitions included

Coverage up to 11000 cm$^{-1}$ for temperatures up to 2000 K

Enables simulation of spectra at various wavelengths

Abstract

This work presents the AYT2 line list: a comprehensive list of 114 million $^{1}$H$_2$$^{32}$S vibration-rotation transitions computed using an empirically-adjusted potential energy surface and an {\it ab initio} dipole moment surface. The line list gives complete coverage up to 11000 \cm\ (wavelengths longer than 0.91 $\mu$m) for temperatures up to 2000 K. Room temperature spectra can be simulated up to 20000 \cm\ (0.5 $\mu$m) but the predictions at visible wavelengths are less reliable. AYT2 is made available in electronic form as supplementary data to this article and at \url{www.exomol.com}.