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

C.~C. Evirgen; F.~A. Gent; A. Shukurov; A. Fletcher; P. Bushby

doi:10.1093/mnrasl/slw196

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

C.~C. Evirgen, F.~A. Gent, A. Shukurov, A. Fletcher, P. Bushby

Department of Computer Science

Newcastle University

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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.

Original language	English
Pages (from-to)	L105-L109
Journal	Monthly Notices of the Royal Astronomical Society
Volume	464
DOIs	https://doi.org/10.1093/mnrasl/slw196
Publication status	Published - 1 Jan 2017
MoE publication type	A1 Journal article-refereed

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Transition from small-scale to large-scale dynamo in a supernova-driven, multiphase medium
Gent, F. A., Mac Low, M.-M. & Korpi-Lagg, M. J., 10 Jan 2024, In: The Astrophysical Journal. 961, 1, p. 1-19 19 p., 7.
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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.",

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AU - Shukurov, A.

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AU - Bushby, P.

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AB - 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.

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DO - 10.1093/mnrasl/slw196

M3 - Article

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VL - 464

SP - L105-L109

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

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

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Transition from small-scale to large-scale dynamo in a supernova-driven, multiphase medium

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