Show simple item record

Files in this item

Thumbnail

Item metadata

dc.contributor.authorBorissov, Alexei
dc.contributor.authorNeukirch, Thomas
dc.contributor.authorThrelfall, James William
dc.date.accessioned2017-06-01T23:33:45Z
dc.date.available2017-06-01T23:33:45Z
dc.date.issued2016
dc.identifier242724955
dc.identifier63c59269-8411-44e6-a453-0e8e9cadff66
dc.identifier84973102989
dc.identifier000379828300006
dc.identifier.citationBorissov , A , Neukirch , T & Threlfall , J W 2016 , ' Particle acceleration in collapsing magnetic traps with a braking plasma jet ' , Solar Physics , vol. 291 , no. 5 , pp. 1385-1404 . https://doi.org/10.1007/s11207-016-0915-0en
dc.identifier.issn0038-0938
dc.identifier.otherORCID: /0000-0002-7597-4980/work/34032276
dc.identifier.urihttps://hdl.handle.net/10023/10896
dc.description.abstractCollapsing magnetic traps (CMTs) are one proposed mechanism for generating non-thermal particle populations in solar flares. CMTs occur if an initially stretched magnetic field structure relaxes rapidly into a lower-energy configuration, which is believed to happen as a by-product of magnetic reconnection. A similar mechanism for energising particles has also been found to operate in the Earth's magnetotail. One particular feature proposed to be of importance for particle acceleration in the magnetotail is that of a braking plasma jet, i.e. a localised region of strong flow encountering stronger magnetic field which causes the jet to slow down and stop. Such a feature has not been included in previously proposed analytical models of CMTs for solar flares. In this work we incorporate a braking plasma jet into a well studied CMT model for the first time. We present results of test particle calculations in this new CMT model. We observe and characterise new types of particle behaviour caused by the magnetic structure of the jet braking region, which allows electrons to be trapped both in the braking jet region and the loop legs. We compare and contrast the behaviour of particle orbits for various parameter regimes of the underlying trap by examining particle trajectories, energy gains and the frequency with which different types of particle orbit are found for each parameter regime.
dc.format.extent11020725
dc.language.isoeng
dc.relation.ispartofSolar Physicsen
dc.subjectFlares, energetic particlesen
dc.subjectEnergetic particles, electronsen
dc.subjectMagnetic reconnection, modelsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleParticle acceleration in collapsing magnetic traps with a braking plasma jeten
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.identifier.doi10.1007/s11207-016-0915-0
dc.description.statusPeer revieweden
dc.date.embargoedUntil2017-06-01
dc.identifier.grantnumberST/K000950/1en


This item appears in the following Collection(s)

Show simple item record