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dc.contributor.authorParnell, Clare Elizabeth
dc.contributor.authorMaclean, Rhona Claire
dc.contributor.authorHaynes, Andrew Lewis
dc.identifier.citationParnell , C E , Maclean , R C & Haynes , A L 2010 , ' The detection of numerous magnetic separators in a three-dimensional magnetohydrodynamic model of solar emerging flux ' , Astrophysical Journal Letters , vol. 725 , no. 2 , pp. 214-218 .
dc.identifier.otherPURE: 5020396
dc.identifier.otherPURE UUID: 52600124-6bb0-4c33-aaba-6f056c2b9deb
dc.identifier.otherScopus: 78650237563
dc.identifier.otherORCID: /0000-0002-5694-9069/work/73700719
dc.description.abstractMagnetic separators in three-dimensional (3D) magnetic fields are believed to be often associated with locations of magnetic reconnection. In this preliminary study, we investigate this relationship using data from a numerical resistive 3D MHD experiment of a solar flux emergence event. For the first time separators are detected in complex magnetic fields resulting from a 3D resistive MHD model of flux emergence. Two snapshots of the model, taken from different stages of its evolution, are analyzed. Numerous separators are found in both snapshots, and their properties, including their geometry, length, relationship to the magnetic null points, and integrated parallel electric field are studied. The separators reside at the junctions between the emerging flux, the overlying field, and two other flux domains that are newly formed by reconnection. The long separators, which connect clusters of nulls that lie either side of the emerging flux, pass through spatially localized regions of high parallel electric field and correspond to local maxima in integrated parallel electric field. These factors indicate that strong magnetic reconnection takes place along many of the separators, and that separators play a key role during the interaction of emerging and overlying flux.
dc.relation.ispartofAstrophysical Journal Lettersen
dc.rights© 2010. The American Astronomical Society. All rights reserved.en
dc.subjectMagnetic fieldsen
dc.subjectMagnetic reconnectionen
dc.subjectMethods: numericalen
dc.subjectSun: atmosphereen
dc.subjectSun: coronaen
dc.subjectQC Physicsen
dc.titleThe detection of numerous magnetic separators in a three-dimensional magnetohydrodynamic model of solar emerging fluxen
dc.typeJournal itemen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.Applied Mathematicsen
dc.description.statusPeer revieweden

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