Observational analysis of the compositional variation in solar filaments

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dc.contributor.advisorAlexander, David
dc.creatorKilper, Gary K.
dc.date.accessioned2009-06-03T21:10:13Z
dc.date.available2009-06-03T21:10:13Z
dc.date.issued2007
dc.description.abstractSolar filaments have long been associated with coronal mass ejections and Space Weather phenomena. Filaments are dynamcal, and changes in their overall mass or its distribution could trigger an eruption. However, a comprehensive study of the elemental composition, abundance, and dynamics in a variety of filaments had not yet been conducted. The research work presented here is a detailed study of twenty filaments with various properties, which was conducted by analyzing the absorption due to the filaments in cotemporal He I (10830 A) and Haalpha (6563 A) images. The results show bands of relative helium deficits and surpluses that imply a stratification of filament material, possibly due to neutral atom cross-field diffusion. For more highly-varying material; there is a weak direct relation between a change in absorption and a change in the relative abundance of helium, and erupting filaments exhibit increasing absorption and a spatial homogenization of material in the pre-erupting filament section.
dc.format.extent111 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS PHYS. 2007 KILPER
dc.identifier.citationKilper, Gary K.. "Observational analysis of the compositional variation in solar filaments." (2007) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/20513">https://hdl.handle.net/1911/20513</a>.
dc.identifier.urihttps://hdl.handle.net/1911/20513
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectAstronomy
dc.subjectAstrophysics
dc.titleObservational analysis of the compositional variation in solar filaments
dc.typeThesis
dc.type.materialText
thesis.degree.departmentPhysics
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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