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dc.contributor.authorNakariakov, V.M.
dc.contributor.authorFoullon, Claire
dc.contributor.authorVerwichte, E.
dc.contributor.authorYoung, N.P.
dc.date.accessioned2013-08-21T13:06:51Z
dc.date.issued2006
dc.description.abstractWe propose a new model for quasi-periodic modulation of solar and stellar flaring emission. Fast magnetoacoustic oscillations of a non-flaring loop can interact with a nearby flaring active region. This interaction occurs when part of the oscillation situated outside the loop reaches the regions of steep gradients in magnetic field within an active region and produces periodic variations of electric current density. The modulation depth of these variations is a few orders of magnitude greater than the amplitude of the driving oscillation. The variations of the current can induce current-driven plasma micro-instabilities and thus anomalous resistivity. This can periodically trigger magnetic reconnection, and hence acceleration of charged particles, producing quasi-periodic pulsations of X-ray, optical and radio emission at the arcade footpoints.en_GB
dc.identifier.citationVol. 452 (1), pp. 343 - 346en_GB
dc.identifier.doi10.1051/0004-6361:20054608
dc.identifier.urihttp://hdl.handle.net/10871/12666
dc.language.isoenen_GB
dc.publisherEDP Sciencesen_GB
dc.relation.urlhttp://dx.doi.org/10.1051/0004-6361:20054608en_GB
dc.subjectSun: flaresen_GB
dc.subjectSun: oscillationsen_GB
dc.subjectSun: coronaen_GB
dc.subjectstars: flareen_GB
dc.subjectstars: oscillationsen_GB
dc.subjectstars: coronaeen_GB
dc.titleQuasi-periodic modulation of solar and stellar flaring emission by magnetohydrodynamic oscillations in a nearby loopen_GB
dc.typeArticleen_GB
dc.date.available2013-08-21T13:06:51Z
dc.identifier.issn0004-6361
dc.descriptionCopyright © 2006 ESO / EDP Sciencesen_GB
dc.identifier.eissn1432-0746
dc.identifier.journalAstronomy and Astrophysicsen_GB


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