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dc.contributor.authorSchwartz, P.
dc.contributor.authorGunar, S.
dc.contributor.authorCurdt, W.
dc.date.accessioned2015-08-10T16:10:06Z
dc.date.available2015-08-10T16:10:06Z
dc.date.issued2015-05-08
dc.identifier.citationSchwartz , P , Gunar , S & Curdt , W 2015 , ' Non-LTE modelling of prominence fine structures using hydrogen Lyman-line profiles ' , Astronomy & Astrophysics , vol. 577 , A92 . https://doi.org/10.1051/0004-6361/201425138en
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 208744867
dc.identifier.otherPURE UUID: d2c53e85-a821-454d-bd8a-fed6a843b977
dc.identifier.otherWOS: 000357345900044
dc.identifier.otherScopus: 84930504019
dc.identifier.otherWOS: 000357345900044
dc.identifier.urihttp://hdl.handle.net/10023/7177
dc.descriptionDate of Acceptance: 10/03/2015en
dc.description.abstractAims. We perform a detailed statistical analysis of the spectral Lyman-line observations of the quiescent prominence observed on May 18, 2005. Methods. We used a profile-to-profile comparison of the synthetic Lyman spectra obtained by 2D single-thread prominence fine-structure model as a starting point for a full statistical analysis of the observed Lyman spectra. We employed 2D multi-thread fine-structure models with random positions and line-of-sight velocities of each thread to obtain a statistically significant set of synthetic Lyman-line profiles. We used for the first time multi-thread models composed of non-identical threads and viewed at line-of-sight angles different from perpendicular to the magnetic field. Results. We investigated the plasma properties of the prominence observed with the SoHO/SUMER spectrograph on May 18, 2005 by comparing the histograms of three statistical parameters characterizing the properties of the synthetic and observed line profiles. In this way, the integrated intensity, Lyman decrement ratio, and the ratio of intensity at the central reversal to the average intensity of peaks provided insight into the column mass and the central temperature of the prominence fine structures.
dc.format.extent10
dc.language.isoeng
dc.relation.ispartofAstronomy & Astrophysicsen
dc.rights© ESO, 2015. Reproduced with permission from Astronomy & Astrophysics, © ESO.en
dc.subjectSun: filaments, prominencesen
dc.subjectLine: profilesen
dc.subjectRadiative transferen
dc.subjectMethods: statisticalen
dc.subject2-dimensional radiative-transferen
dc.subjectQuiescent prominencesen
dc.subjectSolar prominencesen
dc.subjectEnergy-balanceen
dc.subjectMagnetic-fielden
dc.subjectSoHO/SUMERen
dc.subjectSpectrumen
dc.subjectDynamicsen
dc.subjectThreadsen
dc.subjectSUMERen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleNon-LTE modelling of prominence fine structures using hydrogen Lyman-line profilesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.Applied Mathematicsen
dc.identifier.doihttps://doi.org/10.1051/0004-6361/201425138
dc.description.statusPeer revieweden


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