Spectral-timing across the mass scale: what can stellar mass black holes tell us about AGN variability?
Abstract
Spectral-timing studies of black hole X-ray binaries using NICER reveal a complex interaction between the disk and corona which could shed light on AGN variability, not only in X-rays but also in the optical and UV where the disk blackbody emission is observed. We can explain much of the X-ray binary spectral-timing behaviour in terms of the different modes of communication between disk and corona: propagating accretion fluctuations, seed photon variations and reverberation. Here I will show the results of time-dependent simulations which extend this model to AGN black hole masses, to determine what aspects of AGN variability can be explained by mechanisms which span the black hole mass range.
- Publication:
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44th COSPAR Scientific Assembly. Held 16-24 July
- Pub Date:
- July 2022
- Bibcode:
- 2022cosp...44.2286U