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The distribution of mean and fluctuating magnetic fields in the multiphase interstellar medium

Lookup NU author(s): Can Evirgen, Fred Gent, Professor Anvar ShukurovORCiD, Dr Andrew Fletcher, Professor Paul BushbyORCiD

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Abstract

We explore the effects of the multiphase structure of the interstellar medium (ISM) on galactic magnetic fields. Basing our analysis on compressible magnetohydrodynamic simulations of supernova-driven turbulence in the ISM, we investigate the properties of both the mean and fluctuating components of the magnetic field. We find that the mean magnetic field preferentially resides in the warm phase and is generally absent from the hot phase. The fluctuating magnetic field does not show such pronounced sensitivity to the multiphase structure.

Publication metadata

Author(s): Evirgen CC, Gent FA, Shukurov A, Fletcher A, Bushby P

Publication type: Article

Publication status: Published

Journal: Monthly Notices of the Royal Astronomical Society

Year: 2017

Volume: 464

Issue: 1

Pages: L105-L109

Print publication date: 01/01/2017

Online publication date: 26/09/2016

Acceptance date: 23/09/2016

Date deposited: 12/01/2017

ISSN (print): 1745-3925

ISSN (electronic): 1745-3933

Publisher: Oxford University Press

URL: . https://doi.org/10.1093/mnrasl/slw196

DOI: 10.1093/mnrasl/slw196

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