Accretion Flows in X–Ray Binaries and Active Galactic Nuclei
نویسنده
چکیده
Hard X–ray emission is ubiquitous in accreting black holes, both in Galactic binary systems and in Active Galactic Nuclei. I review the different spectra which can be seen from these systems, and possible ways of producing this emission. X–ray reflection should give an observational test of these scenarios, but we need better models before this can give an unambiguous diagnostic of the accretion geometry.
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