DOI: 10.1093/mnras/staa1384
2 citations
Résumé:

N$_2$H$^+$ is one of the first molecular ion observed in the interstellar medium and it is found of particular interest to probe the physical conditions of cold molecular clouds. Accurate modelling of the observed lines requires the knowledge of collisional exci- tation rate coefficients. Thus, we have calculated rate coefficients for the excitation of N$_2$H$^+$ by H$_2$, the most abundant collisional partner.