your ID: 0188 
First Name: Bifang 
Last Name: Liu 
Affiliation: National Astronomical Observatories/Yunnan Observatory, CAS 
Title: Disk corona in AGN: What do we expect?
Authors: 
Topic: 2 
Session: oral 
Abstract: The disk-corona evaporation/condensation model (Meyer et al 2000) provides
 a physical mechanism in explaining many observational phenomena in black hole X-ray 
binaries. The truncation of the disk, the spectral transition from hard to soft state, the 
hysteresis between the hard-to-soft and soft-to-hard transitions, the occurrence of 
intermediate state, and even the quenching of jets at the soft state, can all be ascribed 
to the results of interaction of disk and corona. Then, what do we expect from the disk 
corona model in AGNs? Preliminary theoretical investigations show that the corona structure
 does not depend on mass of the accretion black hole, but the disk does, and so may be the 
magnetic fields.  In this talk, we'll show predictions of disk-corona model in AGNs and 
discuss the potential interpretation of some observational phenomena which still remain as 
open questions.