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On the effective turbulence driving mode of molecular clouds formed in disc galaxies

Jin, Keitaro; Salim, Diane; Federrath, Christoph; Tasker, Elizabeth J.; Habe, Asao; Kainulainen, Jouni


We determine the physical properties and turbulence driving mode of molecular clouds formed in numerical simulations of a Milky Way-type disc galaxy with parsec-scale resolution. The clouds form through gravitational fragmentation of the gas, leading to average values for mass, radii and velocity dispersion in good agreement with observations of Milky Way clouds. The driving parameter (b) for the turbulence within each cloud is characterized by the ratio of the density contrast (σρ/ρ0 ) to the...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stx737
Access Rights: Open Access


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