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.