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 ?

August 20th, 2026

Added datafile for ro-vibrational excitation of CH+ by electrons (Sil et al. 2026).

July 2nd, 2026

Added datafile for fine-structure excitation of CC34S by He and para-H2 (Godard Palluet & Lique 2024).

July 1st, 2026

Added datafile for hyperfine-structure excitation of 13CCS, C13CS and CC33S by He and para-H2 (Godard Palluet & Lique 2024).