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dc.contributor.authorArchontis, V.
dc.contributor.authorHood, A.W.
dc.contributor.authorTsinganos, K.
dc.date.accessioned2014-09-02T09:31:06Z
dc.date.available2014-09-02T09:31:06Z
dc.date.issued2014-05-10
dc.identifier.citationArchontis , V , Hood , A W & Tsinganos , K 2014 , ' Recurrent explosive eruptions and the "sigmoid-to-arcade" transformation in the Sun driven by dynamical magnetic flux emergence ' , Astrophysical Journal Letters , vol. 786 , no. 2 , L21 . https://doi.org/10.1088/2041-8205/786/2/L21en
dc.identifier.issn2041-8205
dc.identifier.otherPURE: 145265086
dc.identifier.otherPURE UUID: 027c43fb-efd6-4da8-877b-d51e685d81ac
dc.identifier.otherScopus: 84899433754
dc.identifier.otherORCID: /0000-0003-2620-2068/work/58055137
dc.identifier.otherWOS: 000335824100012
dc.identifier.otherORCID: /0000-0002-6926-8676/work/73700848
dc.identifier.urihttps://hdl.handle.net/10023/5319
dc.descriptionThe authors acknowledge support by EU (IEF-272549 grant) and the Royal Society.en
dc.description.abstractWe report on three-dimensional MHD simulations of recurrent mini coronal mass ejection (CME)-like eruptions in a small active region (AR), which is formed by the dynamical emergence of a twisted (not kink unstable) flux tube from the solar interior. The eruptions develop as a result of the repeated formation and expulsion of new flux ropes due to continuous emergence and reconnection of sheared field lines along the polarity inversion line of the AR. The acceleration of the eruptions is triggered by tether-cutting reconnection at the current sheet underneath the erupting field. We find that each explosive eruption is followed by reformation of a sigmoidal structure and a subsequent "sigmoid-to-flare arcade" transformation in the AR. These results might have implications for recurrent CMEs and eruptive sigmoids/flares observations and theoretical studies.
dc.format.extent5
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal Lettersen
dc.rights© 2014. The American Astronomical Society. All rights reserved.en
dc.subjectSun: activityen
dc.subjectSun: coronal mass ejections (CMEs)en
dc.subjectSun: magnetic fieldsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleRecurrent explosive eruptions and the "sigmoid-to-arcade" transformation in the Sun driven by dynamical magnetic flux emergenceen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.identifier.doihttps://doi.org/10.1088/2041-8205/786/2/L21
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/K000950/1en


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