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Magnetohydrostatic modelling of stellar coronae

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dc.contributor.authorMacTaggart, David
dc.contributor.authorGregory, Scott
dc.contributor.authorNeukirch, Thomas
dc.contributor.authorDonati, Jean-Francois
dc.date.accessioned2016-01-25T10:10:07Z
dc.date.available2016-01-25T10:10:07Z
dc.date.issued2016-02-11
dc.identifier.citationMacTaggart , D , Gregory , S , Neukirch , T & Donati , J-F 2016 , ' Magnetohydrostatic modelling of stellar coronae ' , Monthly Notices of the Royal Astronomical Society , vol. 456 , no. 1 , pp. 767-774 . https://doi.org/10.1093/mnras/stv2714en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 231920830
dc.identifier.otherPURE UUID: 98699993-5196-49c9-bf03-47348d54f49b
dc.identifier.otherScopus: 84959551000
dc.identifier.otherORCID: /0000-0002-7597-4980/work/34032279
dc.identifier.otherWOS: 000368010000093
dc.identifier.urihttps://hdl.handle.net/10023/8067
dc.description.abstractWe 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.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2016, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at mnras.oxfordjournals.org / https://dx.doi.org/10.1093/mnras/stv2714en
dc.subjectMHDen
dc.subjectMethods: analyticalen
dc.subjectStars: coronaeen
dc.subjectMagnetic fielden
dc.subjectQB Astronomyen
dc.subjectQA Mathematicsen
dc.subjectQC Physicsen
dc.subjectT-NDASen
dc.subject.lccQBen
dc.subject.lccQAen
dc.subject.lccQCen
dc.titleMagnetohydrostatic modelling of stellar coronaeen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stv2714
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/K000950/1en
dc.identifier.grantnumberST/J003255/1en


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