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Radio synchrotron fluctuation statistics as a probe of magnetized interstellar turbulence

Herron, C. A.; Burkhart, Blakesley; Lazarian, A.; Gaensler, B. M.; McClure-Griffiths, N. M.


We investigate how observations of synchrotron intensity fluctuations can be used to probe the sonic and Alfvénic Mach numbers of interstellar turbulence, based on mock observations performed on simulations of magnetohydrodynamic turbulence. We find that the structure function slope and a diagnostic of anisotropy that we call the integrated quadrupole ratio modulus both depend on the Alfvénic Mach number. However, these statistics also depend on the orientation of the mean magnetic field in the...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/0004-637X/822/1/13
Access Rights: Open Access


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