OKC colloquia

X-ray emission from the inner accretion flow of Active Galactic Nuclei

by Josefin Larsson

Europe/Stockholm
Description
Active Galactic Nuclei (AGN) are powered by accretion onto supermassive black holes. The X-ray emission from AGN originates very close to the black holes and thus provides information about the physical processes that occur in these highly relativistic regions. Of particular interest is the X-ray emission which is reflected into our line of sight by the accretion disc. I will describe how the spectral features and the variability of this reflected component can be used to constrain the accretion geometry and the black hole spin.