Photoelectric Heating and [CII] Cooling of High Galactic Latitude Translucent Clouds

James G. Ingalls, William T. Reach, T. M. Bania

The (2P3/2 -> 2P1/2) transition of singly--ionized carbon, [CII], is the primary coolant of diffuse interstellar gas. We describe observations of [CII] emission towards nine high G…