XMM-Newton Proposal 02010003

Physics

Scientific paper

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Igrj16138-4848, Igrj16138-4848, Igrj16138-4848, Xmm-Newton Proposal 02010003

Scientific paper

The prominent, large equivalent width Fe K-alpha, Fe K-beta, and Ni K-beta fluorescent emission lines in the X-ray spectrum of IGRJ16138-4848 represent an almost unique laboratory to study the conditions of the accretion flows in binary systems. There is evidence for changes of the quantities defining the accretion flow on different timescales, possibly related to the overall X-ray output. We propose a monitoring campaign of IGRJ16138-4848 during the XMM-Newton AO3, in order to study the relation between the X-ray output and the physical state of the accreting matter, and the evolution of the accretion flow geometry, distribution and covering factor. We request 4 observations, covering timescales from days to months, for a total allocation time of 80 ks.

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