A Comparative Study of the Ground State Transitions of CO and [C I] as Molecular Gas Tracers at High Redshift

Marta Frias Castillo, Matus Rybak, Jacqueline A. Hodge +22

The CO(1--0) and [\ion{C}{1}](1--0) emission lines are well-established tracers of cold molecular gas mass in local galaxies. At high redshift, where the interstellar medium (ISM)…