12–13 déc. 2016
University Paris Descartes
Fuseau horaire Europe/Paris

Astronomy - photon: X-ray variability in accreting supermassive black holes and relations to X-ray binaries

12 déc. 2016, 14:50
30m
Room Conseil (1)

Room Conseil (1)

Orateur

Dr Gabriele Ponti

Description

I will discuss how the variable X-ray emission from accreting supermassive black holes (or active galactic nuclei, AGN) can be used to extract information about the central compact object. I will show the evolution of the variability properties with black hole mass and accretion rate, within the sample of AGN and how this is related to variability in X-ray binaries. I will finally introduce some new fourier-time-delay techniques that carry the potential to echo-map the geometry of the emitting region.

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