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Oscillation and Photospheric Radius Expansion in X-ray Bursts

Pluijmers, J (2015) Oscillation and Photospheric Radius Expansion in X-ray Bursts. Bachelor's Thesis, Astronomy.

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During thermonuclear X-ray bursts, two properties are occasionally observed. These properties are the so-called photospheric radius expansion and burst oscillation. I analyzed the X-ray burst data that was available from 2 source: 4U 1728-34 and 4U 1636-53 and tried to find if there is a correlation between these two properties and why this correlation may exists. I found that there is indeed a correlation, but probably not a causation. Both properties are influenced by the mass accretion rate and the photospheric radius expansion is also influenced by the chemical composition of the fuel at the time of the burst. Due to both their properties being influenced by the mass accretion rate, the two seem correlated.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Astronomy
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 08:05
Last Modified: 15 Feb 2018 08:05

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