dc.rights.license | CC-BY-NC-ND | |
dc.contributor.advisor | in 't Zand, J.J.M | |
dc.contributor.advisor | de Morais Smith, C. | |
dc.contributor.author | Kries, M.J.W. | |
dc.date.accessioned | 2017-07-20T17:00:56Z | |
dc.date.available | 2017-07-20T17:00:56Z | |
dc.date.issued | 2017 | |
dc.identifier.uri | https://studenttheses.uu.nl/handle/20.500.12932/26201 | |
dc.description.abstract | Previously, only 5 type-I X-ray bursts with variability in the burst decay were known. During a systematic search through the archive of automatically observed triggers of the Swift X-ray observatory, 3 additional bursts were found that show strong variability ($\sim$70\% amplitude), making a total of 8 bursts that show this behaviour. 4 bursts that were observed with Swift (one of which was already known to show variability) are discussed in detail and compared with 4 previously known bursts. We find many similarities. They are likely all ultra compact X-ray binaries, the bursts are all intermediate duration bursts and probably have superexpansion.
We speculate that the fluctuations and eclipse-like features are caused by a resettling accretion disk that was disrupted by the effects of super-Eddington fluxes, including an expanding shell and a strong radiation pressure. | |
dc.description.sponsorship | Utrecht University | |
dc.format.extent | 1926037 | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.title | A comparative analysis of disruptive type-I X-ray bursts with non-monotonic decays | |
dc.type.content | Bachelor Thesis | |
dc.rights.accessrights | Open Access | |
dc.subject.keywords | accretion, accretion disk, X-rays, binaries, bursts, individual, 4U 1850-087, Swift J1734.5-3027, IGR J17062-6143, SAX J1712.6-3739 | |
dc.subject.courseuu | Natuur- en Sterrenkunde | |