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- W1520218192 abstract "We present the results of our study of X-ray pulsar Cen X-3 using XMM-Newton observations. The light curve and the spectrum for this observations were built and Fe triplet within 6.5-7 keV region was detected. The geometric model of relativistic accretion disk for iron emission lines Fe I K alpha, Fe XXV and Fe XXVI in 6.4-7.0 keV region was applied. The values of disc inclination, inner and outer radii of the disc and mass of the central compact object (neutron star) were obtained. Intensity variations of these lines during orbital motion were also detected. The largest variation was detected for Fe I K alpha line, that agrees with the results of other authors. These results conform the model in which Fe I K alpha line forms in hot plasma of accretion disc and highly ionized iron lines form in outer regions of binary system. Probably the most interesting feature of Cen X-3 spectrum is Fe XXV triplet which was found by Iaria et al. (2005) from Chandra data analysis. We did not find this triplet in our analysis of XMM-Newton data and explain its absence by the insufficient energy resolution of XMM-Newton instruments." @default.
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- W1520218192 date "2009-12-17" @default.
- W1520218192 modified "2023-09-27" @default.
- W1520218192 title "XMM-Newton Observations of X-ray Pulsar Cen X-3" @default.
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