Atomic Carbon Is a Temperature Probe in Dark Clouds

K. Tatematsu, D. T. Jaffe, R. Plume +2

We have mapped the C I 3P1-3P0 line at 492 GHzin three molecular clouds immersed in weak ultraviolet radiation fields, TMC-1, L134N, and IC 5146. In all three clouds, the CI peak T…