Show simple item record Brown, Daniel Priest, Eric 2007-01-16T13:47:36Z 2007-01-16T13:47:36Z 2001-02-03
dc.identifier.citation Brown , D & Priest , E 2001 , ' The topological behaviour of 3D null points in the Sun's corona ' Astronomy and Astrophysics , vol 367 , no. 1 , pp. 339-346 . DOI: 10.1051/0004-6361:20010016 en
dc.identifier.issn 0004-6361
dc.identifier.other PURE: 71710
dc.identifier.other PURE UUID: 2bf30aff-fcfe-44fe-b62a-93287d881847
dc.identifier.other dspace: 2160/297
dc.identifier.other DSpace_20121128.csv: row: 233
dc.identifier.uri en
dc.description Brown D. S. and Priest E. R. 2001, The topological behaviour of 3D null points in the Sun's corona, Astronomy and Astrophysics, 367, 339-346 en
dc.description.abstract Many traditional two-dimensional models of flares and other reconnective events rely on an X-point in the corona which collapses to form a current sheet where reconnection takes place. However, the Sun's corona is three-dimensional and the X-point is only a two-dimensional artifact. Three-dimensional models can instead make use of 3D null points in the corona, and Priest & Titov (1996) have studied how reconnection may take place at such locations. This paper aims to study possible conditions for coronal nulls to occur, and how they can be born. It starts with three negative sources and a positive source that is weaker than the sum of the negative sources. As the positive source moves inwards towards the negative sources, there is a local double-separator bifurcation of the topology to a new state, referred to as a Coronal Null state, which contains a null point above the photosphere. en
dc.format.extent 8 en
dc.language.iso eng
dc.relation.ispartof Astronomy and Astrophysics en
dc.rights en
dc.title The topological behaviour of 3D null points in the Sun's corona en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.contributor.institution Department of Physics en
dc.contributor.institution Mathematics and Physics en
dc.description.status Peer reviewed en

Files in this item

Aside from theses and in the absence of a specific licence document on an item page, all works in Cadair are accessible under the CC BY-NC-ND Licence. AU theses and dissertations held on Cadair are made available for the purposes of private study and non-commercial research and brief extracts may be reproduced under fair dealing for the purpose of criticism or review. If you have any queries in relation to the re-use of material on Cadair, contact

This item appears in the following Collection(s)

Show simple item record

Search Cadair

Advanced Search