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Magnetohydrostatic modelling of stellar coronae
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dc.contributor.author | MacTaggart, David | |
dc.contributor.author | Gregory, Scott | |
dc.contributor.author | Neukirch, Thomas | |
dc.contributor.author | Donati, Jean-Francois | |
dc.date.accessioned | 2016-01-25T10:10:07Z | |
dc.date.available | 2016-01-25T10:10:07Z | |
dc.date.issued | 2016-02-11 | |
dc.identifier | 231920830 | |
dc.identifier | 98699993-5196-49c9-bf03-47348d54f49b | |
dc.identifier | 84959551000 | |
dc.identifier | 000368010000093 | |
dc.identifier.citation | MacTaggart , 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/stv2714 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ORCID: /0000-0002-7597-4980/work/34032279 | |
dc.identifier.uri | https://hdl.handle.net/10023/8067 | |
dc.description.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. | |
dc.format.extent | 1005092 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | MHD | en |
dc.subject | Methods: analytical | en |
dc.subject | Stars: coronae | en |
dc.subject | Magnetic field | en |
dc.subject | QB Astronomy | en |
dc.subject | QA Mathematics | en |
dc.subject | QC Physics | en |
dc.subject | T-NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QA | en |
dc.subject.lcc | QC | en |
dc.title | Magnetohydrostatic modelling of stellar coronae | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.institution | University of St Andrews. Applied Mathematics | en |
dc.contributor.institution | University of St Andrews. School of Mathematics and Statistics | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1093/mnras/stv2714 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | ST/K000950/1 | en |
dc.identifier.grantnumber | ST/J003255/1 | en |
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