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Abstract: The properties of X-ray emission from accreting black holes are reviewed. Thecontemporary observational picture and current status of theoreticalunderstanding of accretion and formation of X-ray radiation in the vicinity ofthe compact object are equally in the focus of this chapter. The emphasis ismade primarily on common properties and trends rather than on peculiarities ofindividual objects and details of particular theoretical models. The chapterstarts with discussion of the geometry of the accretion flow, spectralcomponents in X-ray emission and black hole spectral states. The prospects anddiagnostic potential of X-ray polarimetry are emphasized. Significant attentionis paid to the discussion of variability of X-ray emission in general and ofdifferent spectral components - emission of the accretion disk, Comptonizedradiation and reflected component. Correlations between spectral and timingcharacteristics of X-ray emission are reviewed and discussed in the context oftheoretical models. Finally, a comparison with accreting neutron stars is made.

Author: M. Gilfanov MPA Garching, Germany and Space Research Institute, Moscow, Russia

Source: https://arxiv.org/

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