Abstract
The dynamics of the interstellar gas (the IS gas) driven by the viscous torque of a system of giant molecular clouds (the MC gas) is considered with the infinitesimally thin disk layer approximation. The flow explains the radial distributions of molecules observed in galaxies.
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Fukunaga, M. On the radial distributions of molecular clouds in galaxies. Astrophys Space Sci 119, 143–146 (1986). https://doi.org/10.1007/BF00648833
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DOI: https://doi.org/10.1007/BF00648833