Name of the Speaker(s):Atsuo T. Okazaki
Institution: Astronomical Institute, University of Amsterdam
Title of the communication: Global DIsk Oscillations and Line Profile Variabilities
Preliminary abstract (12 lines max.): We study three dimensional structure of global eccentric (m=1) oscillations of accretion disks in active galactic nuclei. To examine characteristics of eccentric modes, we consider linear adiabatic m=1 oscillations in geometrically thin, polytropic disks. We find that there exist odd (z-antisymmetric) eccentric modes as well as even (z-symmetric) eccentric modes. Structure of these modes and expected variabilities are discussed.