EMAA is a database for line radiative transfer studies in the radio and infrared spectral ranges. It includes collisional and spectroscopic data for atoms and molecules of astrophysical interest.

What's new ?

April 30th, 2026

Added datafiles for fine-structure excitation of C⁺(²P) by H (Barinovs et al. 2005).

February 27th, 2026

Added datafiles for rotational excitation of CH₃CHCH₂O by He and para-H₂ (Dzenis et al. 2022).

January 23th, 2026

Added datafiles for hyperfine excitation of NS by He and para-H₂ (Hily-Blant et al. 2022).