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dc.contributor.authorAntolin, P.
dc.contributor.authorOkamoto, T. J.
dc.contributor.authorDe Pontieu, B.
dc.contributor.authorUitenbroek, H.
dc.contributor.authorVan Doorsselaere, T.
dc.contributor.authorYokoyama, T.
dc.identifier.citationAntolin , P , Okamoto , T J , De Pontieu , B , Uitenbroek , H , Van Doorsselaere , T & Yokoyama , T 2015 , ' Resonant absorption of transverse oscillations and associated heating in a solar prominence. II. Numerical aspects ' , Astrophysical Journal , vol. 809 , 72 .
dc.identifier.otherPURE: 248969322
dc.identifier.otherPURE UUID: a0274ca4-6a66-458b-9481-d14e99f342c6
dc.identifier.otherBibCode: 2015ApJ...809...72A
dc.identifier.otherScopus: 84945260862
dc.description.abstractTransverse magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere and may be responsible for generating the Sun's million-degree outer atmosphere. However, direct evidence of the dissipation process and heating from these waves remains elusive. Through advanced numerical simulations combined with appropriate forward modeling of a prominence flux tube, we provide the observational signatures of transverse MHD waves in prominence plasmas. We show that these signatures are characterized by a thread-like substructure, strong transverse dynamical coherence, an out-of-phase difference between plane-of-the-sky motions and line-of-sight velocities, and enhanced line broadening and heating around most of the flux tube. A complex combination between resonant absorption and Kelvin–Helmholtz instabilities (KHIs) takes place in which the KHI extracts the energy from the resonant layer and dissipates it through vortices and current sheets, which rapidly degenerate into turbulence. An inward enlargement of the boundary is produced in which the turbulent flows conserve the characteristic dynamics from the resonance, therefore guaranteeing detectability of the resonance imprints. We show that the features described in the accompanying paper through coordinated Hinode and Interface Region Imaging Spectrograph observations match the numerical results well.
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2015 The American Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at:
dc.subjectMagnetohydrodynamics: MHDen
dc.subjectSun: activityen
dc.subjectSun: coronaen
dc.subjectSun: filamentsen
dc.subjectSun: oscillationsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleResonant absorption of transverse oscillations and associated heating in a solar prominence. II. Numerical aspectsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.description.statusPeer revieweden

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