Lookup NU author(s): Dr Andrew Fletcher,
Professor Anvar Shukurov
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Observations show that magnetic fields in the interstellar medium (ISM) often to not respond to increases in gas density as would be naively expected for a frozen-in field. This may suggest that the magnetic field in the diffuse gas becomes detached from dense clouds as they form. We have investigated this possibility using theoretical estimates, a simple magneto-hydrodynamic model of a flow without mass conservation and numerical simulations of a thermally unstable flow. Our results show that significant magnetic flux can be shed from dense clouds as they form in the diffuse ISM, leaving behind a magnetically dominated diffuse gas.
Author(s): Fletcher A, Korpi M, Shukurov A
Editor(s): KG Strassmeier; AG Kosovichev; J E Beckman
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Cosmic Magnetic Fields: from Planets, to Stars and Galaxies
Year of Conference: 2009
Publisher: Cambridge University Press
Library holdings: Search Newcastle University Library for this item
Series Title: IAU Symposium Proceedings Series