Welcome to ExoMolHR

Empirical High-Resolution Molecular Spectrum Database and Calculator

ExoMolHR is built upon the high-temperature molecular line lists from the ExoMol database. To provide you with highly accurate spectral lines, we utilize available uncertainties in recommended ExoMol datasets. These lines largely rely on empirical energy levels generated through the MARVEL procedure, systematically applied to improve the energy and transition data across the ExoMol project.

Data quality thresholds
Energy uncertainty ΔE ≤ 0.05 cm-1
Resolving power R > 100 000

Our freely accessible platform allows you to generate line positions with calculated intensities for any user-specified wavenumber/wavelength range and temperature. You can conveniently plot spectra directly on our website, download the results as a .csv file, or calculate cross sections using our integrated PyExoCross Python package or PyExoCross Python program.

Current Database Statistics

45
Molecules
105
Isotopologues
1,067,070,512
Total Spectral Lines
Live platform usage

Downloads

10,035 Downloaded files

We will continuously expand and update these collections as the main ExoMol database evolves.

ExoMolHR uses ExoMol data supported by ERC Advanced Investigator Projects 267219 and 883830