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Probes of turbulent driving mechanisms in molecular clouds from fluctuations in synchrotron intensity

Herron, C.A.; Federrath, Christoph; Gaensler, B M; Lewis, G F; McClure-Griffiths, Naomi; Burkhart, Blakesley


Previous studies have shown that star formation depends on the driving of molecular cloud turbulence, and differences in the driving can produce an order of magnitude difference in the star formation rate. The turbulent driving is characterized by the parameter ζ, with ζ = 0 for compressive, curl-free driving (e.g. accretion or supernova explosions), and ζ = 1 for solenoidal, divergence-free driving (e.g. Galactic shear). Here we develop a new method to measure ζ from observations of...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw3319
Access Rights: Open Access


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