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Modelling of eclipsing binaries

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dc.contributor.advisor Smith, D.P. (Prof.) Skelton, Patricia Leigh 2010-02-18T07:15:00Z 2010-02-18T07:15:00Z 2009-08
dc.identifier.citation Skelton, Patricia Leigh (2009) Modelling of eclipsing binaries, University of South Africa, Pretoria, <> en
dc.description.abstract W Ursae Majoris-type (W UMa-type) variable stars are contact eclipsing binary stars whose evolution is unknown. Modelling to determine the physical parameters of as many W UMa-type variable stars as possible might provide some insight as to how these contact binaries form and evolve. The All Sky Automated Survey (ASAS) has discovered over ve thousand of these systems. Using data from the ASAS and from the Wide Angle Search for Planets (SuperWASP) project, models of selected ASAS contact binaries are being created to determine their physical parameters. Some W UMa-type variable stars are known to undergo changes in orbital period. For selected ASAS contact binaries, a period analysis has been performed using SuperWASP data to determine if the systems are undergoing changes in orbital period. Results of the modelling and period analyses of selected systems are presented. en
dc.format.extent 1 online resource (iv, 114 leaves)
dc.language.iso en en
dc.subject Stars en
dc.subject Binaries en
dc.subject Eclipsing stars en
dc.subject Fundamental parameters en
dc.subject.ddc 523.8444
dc.subject.lcsh Eclipsing binaries
dc.subject.lcsh Double stars
dc.subject.lcsh Variable stars
dc.title Modelling of eclipsing binaries en
dc.type Dissertation en Thesis (M. Sc. (Astronomy))

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    Electronic versions of theses and dissertations submitted to Unisa since 2003

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