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Dark Molecular Gas in Simulations of z - 0 Disk Galaxies

Li, Qi; Narayanan, Desika; Dave, Romeel; Krumholz, Mark


The H2 mass of molecular clouds has traditionally been traced by the CO(J = 1−0) rotational transition line. This said, CO is relatively easily photodissociated and can also be destroyed by cosmic rays, thus rendering some fraction of molecular gas to be "CO-dark." We investigate the amount and physical properties of CO-dark gas in two z ~ 0 disk galaxies and develop predictions for the expected intensities of promising alternative tracers ([C i] 609 μm and [C ii] 158 μm emission). We do this...[Show more]

CollectionsANU Research Publications
Date published: 2018-12-13
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aaec77
Access Rights: Open Access


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