Lookup NU author(s): Can Evirgen,
Professor Anvar Shukurov,
Dr Andrew Fletcher,
Dr Paul Bushby
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Oxford University Press, 2019.
For re-use rights please refer to the publisher's terms and conditions.
We explore the effect of magnetic fields on the vertical distribution and multiphase structure of the supernova-driven interstellar medium (ISM) in simulations that admit dynamo action. As the magnetic field is amplified to become dynamically significant, gas becomes cooler and its distribution in the disc becomes more homogeneous. We attribute this to magnetic quenching of vertical velocity, which leads to a decrease in the cooling length of hot gas. A non-monotonic vertical distribution of the large-scale magnetic field strength, with the maximum at |z| ≈ 300 pc causes a downward pressuregradient below the maximum which acts against outflow driven by SN explosions, while it provides pressure support above the maximum.
Author(s): Evirgen CC, Gent FA, Shukurov A, Fletcher A, Bushby PJ
Publication type: Article
Publication status: Published
Journal: Monthly Notices of the Royal Astronomical Society
Print publication date: 01/10/2019
Online publication date: 30/07/2019
Acceptance date: 24/07/2019
Date deposited: 29/07/2019
ISSN (print): 0035-8711
ISSN (electronic): 1365-2966
Publisher: Oxford University Press
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