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 ?

June 29th, 2025

Added datafiles for rotational excitation of HCNH+ by para-H2 and ortho-H2 up to 500 K (Gong et al. 2025).

June 28th, 2025

Added datafiles for rotational excitation of HOCO+ by para-H2 (Dagdigian 2025).

May 26th, 2025

Added datafiles for ro-vibrational excitation of HeH+ by electrons (Sil et al. 2025).