Shear wave dissipation in planar magnetic X-Points

Craig, Ian J.D.; McClymont, A.N.

Shear wave dissipation in planar magnetic X-Points

dc.contributor.author	Craig, Ian J.D.
dc.contributor.author	McClymont, A.N.
dc.date.accessioned	2008-11-18T22:25:20Z
dc.date.available	2008-11-18T22:25:20Z
dc.date.issued	1997-06
dc.description.abstract	The resistive dissipation of nonlinear shear wave disturbances is discussed. We consider an incompressible, “open” X-point geometry, in which mass and energy are free to enter and leave the reconnection region. An analytic treatment is possible which unifies many of the dynamic and steady-state X-point solutions obtained previously. We show that while field disturbances in the plane of the X-point have the potential for rapid energy release when suitably driven, perpendicular shear disturbances dissipate slowly, at a rate η1/2, where η is the plasma resistivity. This behavior can be understood in terms of the absence of flux pileup in nonplanar shear wave disturbances. We conclude that only planar shear waves have the potential for fast magnetic energy release.	en_US
dc.format.mimetype	application/pdf
dc.identifier.citation	Craig, I. J. D. & McClymont, A. N. (1997). Shear wave dissipation in planar magnetic X-Points. The Astrophysical Journal, 481(2), 996- 1003.	en_US
dc.identifier.doi	10.1086/304082	en_US
dc.identifier.uri	https://hdl.handle.net/10289/1383
dc.language.iso	en
dc.relation.isPartOf	Astrophysical Journal	en_NZ
dc.relation.uri	http://www.journals.uchicago.edu/doi/abs/10.1086/304082	en_US
dc.rights	This article has been published in the Astrophysical Journal. Copyright 1997 The American Astronomical Society.	en_US
dc.subject	MHD—plasmas	en_US
dc.title	Shear wave dissipation in planar magnetic X-Points	en_US
dc.type	Journal Article	en_US
pubs.begin-page	996	en_NZ
pubs.elements-id	39941
pubs.end-page	1003	en_NZ
pubs.issue	2	en_NZ
pubs.volume	481	en_NZ