Evidence for the Flare Trigger Site and Three-Dimensional Reconnection in Multiwavelength Observations of a Solar Flare

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dc.contributor.author Metcalf, Thomas
dc.contributor.author Fletcher, Lyndsay
dc.contributor.author Brown, Daniel
dc.contributor.author Alexander, David
dc.contributor.author Ryder, L.
dc.date.accessioned 2007-08-21T15:57:06Z
dc.date.available 2007-08-21T15:57:06Z
dc.date.issued 2001-06-10
dc.identifier.citation Metcalf , T , Fletcher , L , Brown , D , Alexander , D & Ryder , L 2001 , ' Evidence for the Flare Trigger Site and Three-Dimensional Reconnection in Multiwavelength Observations of a Solar Flare ' Astrophysical Journal , vol 554 , pp. 451-463 . en
dc.identifier.issn 0004-637X
dc.identifier.other PURE: 72290
dc.identifier.other dspace: 2160/327
dc.identifier.uri http://hdl.handle.net/2160/327
dc.identifier.uri http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v554n1/51431/51431.web.pdf en
dc.description Fletcher, L., Metcalf, T.R., Alexander, D., Brown, D.S. and Ryder, L.A., 2001, Evidence for the flare trigger site and 3D reconnection in multi-wavelength observations of a solar flare, Astrophysical Journal, 554, 451-463. en
dc.description.abstract Based on a multiwavelength data set and a topological model for the magnetic field, we argue that a M1.9 flare which occurred on 1993 May shows evidence of three-dimensional coronal reconnection in a spine-fan configuration. Images from the Transition Region and Coronal Explorer allow the detailed examination of the structures involved in the flare and preflare in the 171 Å (1 MK) EUV passband and the Lyα (10,000–20,000 K) passband. Yohkoh Hard X-ray Telescope maps the position of nonthermal electron precipitation and the Soft X-ray Telescope reveals preflare and flare heating on large and small scales. While the flare appears to be driven by changes in small-scale field close to the photosphere, near the interface between strong opposite magnetic polarities, the result is the disruption of large-scale field. We demonstrate how this observed activity on large and small scales, along with many other aspects of the flare, suggests a qualitative explanation in the three-dimensional reconfiguration of coronal magnetic field, following a small-scale flux cancellation at the photosphere. en
dc.format.extent 13 en
dc.language.iso eng
dc.relation.ispartof Astrophysical Journal en
dc.title Evidence for the Flare Trigger Site and Three-Dimensional Reconnection in Multiwavelength Observations of a Solar Flare en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Mathematics and Physics en
dc.description.status Peer reviewed en


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