your ID: 0183 
First Name: Phil 
Last Name: Uttley 
Affiliation: Anton Pannekoek Institute, University of Amsterdam 
Title: AGN X-ray Variability: origin and implications for \'grand unification\' 
Authors: Phil Uttley 
Topic: 3 
Session: oral 
Abstract: Recent years have seen huge progress in our understanding 
of  X-ray variability in radio-quiet AGN, especially through the remarkable 
similarities with X-ray variability of stellar-mass black holes. A picture is
emerging where AGN X-ray variability is driven by a fluctuating accretion 
flow, offering the chance to use X-ray timing to probe accretion close to
 the black hole, and map the X-ray emitting region.  The variability properties
 may also offer a diagnostic of the accretion states of AGN - the latest 
evidence suggests that AGN show the same variety of states seen in 
stellar mass black holes, which has strong implications for 
AGN \'grand unification\' models.