# Molecular line shape parameters for exoplanetary atmospheric applications

## TL;DR

This paper updates the ExoMol database with new molecular line shape parameters crucial for modeling exoplanetary atmospheres, focusing on broadening effects and temperature-pressure ranges.

## Contribution

It provides recent updates to the ExoMol database, emphasizing molecular line shape data tailored for exoplanet and cool star atmospheric characterization.

## Key findings

- Updated line shape parameters for hydrogen and helium atmospheres
- Coverage of broad temperature and pressure ranges
- Discussion of literature data and community needs

## Abstract

We describe the recent updates to the ExoMol database regarding the molecular spectral line shapes. ExoMol provides comprehensive molecular line lists with a special emphasis on the applications involving characterization of atmospheres of exoplanets and cool stars. Among important requirements of such applications are (i) the broadening parameters for hydrogen and helium dominating atmospheres and (ii) very broad ranges of temperature and pressures. The current status of the available line shape data in the literature, demands from the exoplanetary community and their specific needs are discussed.