Oscillations in the magnetic field of the solar corona in response to flares near the photosphere

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dc.contributor.author Brown, Daniel
dc.contributor.author Schrijver, Carolus
dc.date.accessioned 2007-08-21T14:01:33Z
dc.date.available 2007-08-21T14:01:33Z
dc.date.issued 2000-06-27
dc.identifier.citation Brown , D & Schrijver , C 2000 , ' Oscillations in the magnetic field of the solar corona in response to flares near the photosphere ' Astrophysical Journal , vol 537 , pp. 69- . en
dc.identifier.issn 0004-637X
dc.identifier.other PURE: 72256
dc.identifier.other dspace: 2160/326
dc.identifier.uri http://hdl.handle.net/2160/326
dc.identifier.uri http://www.journals.uchicago.edu/ApJ/journal/issues/ApJL/v537n1/005232/005232.web.pdf en
dc.description Schrijver, C.J. and Brown, D.S., 2000, Oscillations in the magnetic field of the solar corona in response to flares near the photosphere, Astrophysical Journal, 537, L69-L72. Sponsorship: PPARC en
dc.description.abstract The magnetic field in the outer solar atmosphere is frequently distorted by flares. In some cases, a fraction of the field exhibits a rapidly damped oscillation (Schrijver et al.; Aschwanden et al.). If this is a resonating wave trapped in the field, then the rapid damping requires a viscosity or resistivity that is at least 108 times larger than expected (Nakariakov et al.). We propose instead that some of the field lines are so sensitive to the source positions that rocking motions of the photospheric plasma associated with some solar flares (Kosovichev & Zharkova) cause a few loops to oscillate in (anti)phase in the fundamental mode, with a period and decay rate that are determined largely by the characteristics of the photosphere, saying little about the high atmosphere. en
dc.language.iso eng
dc.relation.ispartof Astrophysical Journal en
dc.title Oscillations in the magnetic field of the solar corona in response to flares near the photosphere 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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