Molecular Absorption Cross Sections for H2-He Dominated Substellar Atmospheres (using exocross and ExoMol line lists as of ~2021)

This data set consists of molecular absorption cross sections for the following molecules assuming collisional broadening by a H2-He dominated atmosphere: H2O, CH4, NH3, PH3, CO2, CO, HCN, H2S, H2, FeH, SiO CrH, TiH, MgH, CaH, TiO, VO

The cross section grid has a constant spectral resolution of R~20,000 from 0.3 microns to 50 microns. It ranges in temperature from 50-5000 K and in pressure from 10^6 to 3000 bars. When decompressed, the full set of files takes up 22 GB.

These molecular absorption cross sections were calculated using the exocross code created and distributed by the ExoMol collaboration. A description of the procedure I followed for their calculation is included in the appendix of Lacy & Burrows 2023. A description of the file format and brief summary of the line lists used can be found in README.txt. Please cite these line lists as well as Lacy & Burrows 2023 if you make use of these cross sections in your work. (See https://www.exomol.com/bibliography/)