New Estimate for the Cosmic Ray-Induced ${\mathrm{H}}_2$ Photodissociation Rate in the Interstellar Medium

O. Sipilä, P. Caselli, M. Padovani +5

In the interstellar medium, cosmic rays (CRs) generate a field of ultraviolet (UV) photons via the excitation and subsequent radiative decay of ${\mathrm{H}}_2$ molecules. This UV field i…