English

Data structures for photoabsorption within the ExoMol project

Earth and Planetary Astrophysics 2023-06-08 v1 Instrumentation and Methods for Astrophysics Chemical Physics

Abstract

The ExoMol database currently provides comprehensive line lists for modelling the spectroscopic properties of molecules in hot atmospheres. Extending the spectral range of the data provided to ultraviolet (UV) wavelengths brings into play three processes not currently accounted for in the ExoMol data structure, namely photodissociation, which is an important chemical process in its own right,the opacity contribution due to continuum absorption and predissociation which can lead to significant and observable line broadening effects. Data structures are proposed which will allow these processes to be correctly captured and the (strong) temperature-dependent effects predicted for UV molecular photoabsorption in general and photodissociation in particular to be represented.

Keywords

Cite

@article{arxiv.2306.04497,
  title  = {Data structures for photoabsorption within the ExoMol project},
  author = {Jonathan Tennyson and Marco Pezzella and Jingxin Zhang and Sergei N. Yurchenko},
  journal= {arXiv preprint arXiv:2306.04497},
  year   = {2023}
}

Comments

This version contains some minor corrections compared to the published version

R2 v1 2026-06-28T10:58:56.975Z