Pulsations in the white dwarf primary of a cataclysmic variable star

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dc.contributor.advisorWarner, Brianen_ZA
dc.contributor.authorVan Zyl, Liza Marieen_ZA
dc.date.accessioned2016-03-17T07:17:47Z
dc.date.available2016-03-17T07:17:47Z
dc.date.issued1999en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThe field of Asteroseismology provides powerful techniques for the study of pulsating white dwarf stars. If these techniques could be applied to the white dwarf primaries of Cataclysmic Variable stars, the study of accretion in interacting binary systems would benefit enormously. Our understanding of normal modes in white dwarf pulsators would benefit likewise from the study of how they respond to accretion. This dissertation presents the analysis of preliminary observations of the Dwarf Nova GW Librae , the first Cataclysmic Variable star found to have a DAY primary. A brief introduction to Cataclysmic Variables and the pulsating white dwarfs is given, and the significance of GW Librae to these fields of study is discussed. In this dissertation I present the analysis of 7 weeks of high speed CCD observations obtained on GW Librae during 1997 and 1998. The power in the pulsation spectrum concentrates principally in regions near 376s and 650s. GW Librae has a pulsation spectrum that shows dramatic changes on a monthly basis, typical of the pulsating DA white dwarfs.en_ZA
dc.identifier.apacitationVan Zyl, L. M. (1999). <i>Pulsations in the white dwarf primary of a cataclysmic variable star</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/17896en_ZA
dc.identifier.chicagocitationVan Zyl, Liza Marie. <i>"Pulsations in the white dwarf primary of a cataclysmic variable star."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 1999. http://hdl.handle.net/11427/17896en_ZA
dc.identifier.citationVan Zyl, L. 1999. Pulsations in the white dwarf primary of a cataclysmic variable star. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Van Zyl, Liza Marie AB - The field of Asteroseismology provides powerful techniques for the study of pulsating white dwarf stars. If these techniques could be applied to the white dwarf primaries of Cataclysmic Variable stars, the study of accretion in interacting binary systems would benefit enormously. Our understanding of normal modes in white dwarf pulsators would benefit likewise from the study of how they respond to accretion. This dissertation presents the analysis of preliminary observations of the Dwarf Nova GW Librae , the first Cataclysmic Variable star found to have a DAY primary. A brief introduction to Cataclysmic Variables and the pulsating white dwarfs is given, and the significance of GW Librae to these fields of study is discussed. In this dissertation I present the analysis of 7 weeks of high speed CCD observations obtained on GW Librae during 1997 and 1998. The power in the pulsation spectrum concentrates principally in regions near 376s and 650s. GW Librae has a pulsation spectrum that shows dramatic changes on a monthly basis, typical of the pulsating DA white dwarfs. DA - 1999 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1999 T1 - Pulsations in the white dwarf primary of a cataclysmic variable star TI - Pulsations in the white dwarf primary of a cataclysmic variable star UR - http://hdl.handle.net/11427/17896 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17896
dc.identifier.vancouvercitationVan Zyl LM. Pulsations in the white dwarf primary of a cataclysmic variable star. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 1999 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17896en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Astronomyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherAstronomyen_ZA
dc.titlePulsations in the white dwarf primary of a cataclysmic variable staren_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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