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Accretion disk radii changes in IP Peg during outburst

The focus of this study is the change in accretion disk size in Dwarf Novae (DN), IP Peg. DN systems are a type of cataclysmic variable that experience periodic outbursts. These outbursts are caused by the release of gravitational potential energy from an increased rate of matter flow through the accretion disk. Throughout outburst, the radius of the accretion disk of the DN changes. Recent research done at Ball State University has suggested that the disk radius may not change as the disk instability model predicts. According to the disk instability model, the accretion disk should be at its largest radial size when the DN is at the peak of outburst. IP Peg in September and October of 2006 underwent outburst. It was found that during that particular outburst that the accretion disk was at its largest radial size on the decline from outburst and not peak. Further research into how the accretion disk changes with time is needed. / Department of Physics and Astronomy

Identiferoai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/188244
Date January 2007
CreatorsHamper, Randall T.
ContributorsKaitchuck, Ronald H.
Source SetsBall State University
Detected LanguageEnglish
Format53, [1] leaves : ill. ; 28 cm.
SourceVirtual Press

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