MacTaggart, D. , Gregory, S., Neukirch, T. and Donati, J.-F. (2016) Magnetohydrostatic modelling of stellar coronae. Monthly Notices of the Royal Astronomical Society, 456(1), pp. 767-774. (doi: 10.1093/mnras/stv2714)
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Abstract
We introduce to the stellar physics community a method of modelling stellar coronae that can be considered to be an extension of the potential field. In this approach, the magnetic field is coupled to the background atmosphere. The model is magnetohydrostatic and is a balance between the Lorentz force, the pressure gradient and gravity. Analytical solutions are possible and we consider a particular class of equilibria in this paper. The model contains two free parameters and the effects of these on both the geometry and topology of the coronal magnetic field are investigated. A demonstration of the approach is given using a magnetogram derived from Zeeman–Doppler imaging of the 0.75 M⊙ M-dwarf star GJ 182.
Item Type: | Articles |
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Additional Information: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Mactaggart, Dr David |
Authors: | MacTaggart, D., Gregory, S., Neukirch, T., and Donati, J.-F. |
Subjects: | Q Science > QB Astronomy |
College/School: | College of Science and Engineering > School of Mathematics and Statistics > Mathematics |
Journal Name: | Monthly Notices of the Royal Astronomical Society |
Journal Abbr.: | MNRAS |
Publisher: | Oxford University Press |
ISSN: | 0035-8711 |
ISSN (Online): | 1365-2966 |
Copyright Holders: | Copyright © 2016 The Authors |
First Published: | First published in Monthly Notices of the Royal Astronomical Society 456(1):767-774 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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