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Determining the cataclysmic variables stars accretion disk structural features with chandra and XMM-Newton satellites? data analysis

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2012
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Abstract (EN)

In this study, the similarities and the differences of the physical properties of novas are evaluated by comparing x-ray fluxes of 39 satellite observations gained from different stages of novas.Observation data of XMM-Newton and Chandra satellites which are made with the same x-ray sources are analyzed. Ritter?s Catalog of Cataclysmic Variables (Ritter H., Kolb U. 2011) is taken as a reference and the shared observations of all systems for the two satellites are scanned.As a result of catalog scanning, x-ray sources called SS Cyg, U Gem, AB Dra, V426 Oph, OY Car, QZ Vir, SU Uma, AM Her, BY Cam, EX Hya, V4743 Sgr and GK Per which are in different stages and observed by the two satellites, are decided to be suitable for the purposes of this study. 39 observations of these 12 systems in total from the two satellites are taken into consideration throughout the analysis.In obtaining the flux graphics of x-ray sources, BIRD catalog for XMM-Newton satellite, TGCat catalog for Chandra satellite are used. x-ray fluxes of satellite observations in different stages are combined in the same scale in order to compare the behavior of the stages they are in.As a result of this study, among the types investigated, x-ray fluxes of dwarf novas, being different from other types, are determined to have common behaviors in the stages of quiescence, outburst and transition.

Author

Ömer Ayyıldız

How to Cite

Ömer Ayyıldız (Master Thesis). Determining the cataclysmic variables stars accretion disk structural features with chandra and XMM-Newton satellites? data analysis, 2012, Anadolu University.

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