Search Publications

Collisional Excitation of the [C II] Fine Structure Transition in Interstellar Clouds

Velusamy, T.; Goldsmith, Paul F.; Pineda, Jorge L. +1 more

We analyze the collisional excitation of the 158 µm (1900.5 GHz) fine structure transition of ionized carbon in terms of line intensities produced by simple cloud models. The single C⁺ fine structure transition is a very important coolant of the atomic interstellar medium (ISM) and of photon-dominated regions in which carbon is pa…