Name of the Speaker(s): Stefan Appl
Institution: Observatoire de Strasbourg
Title of the communication:
Relativistic Accretion Discs and Magnetized Jets
Preliminary abstract (12 lines max.):
The structure of stationary transsonic accretion discs around rotating
black holes is calculated. The discs possess ion temperatures in the
range $10^{11} - 10^{12}$ K. Disks around rapidly rotating black holes
are hotter and deposit less angular momentum onto the central object
than those around non-rotating black holes.
A model for stationary collimated relativistic MHD jets is presented.
It provides a consistent kinematical and magnetic structure.
Relations between the mass flux, Lorentz factor, Mach numbers
are given. Relativistic MHD jets are shown to be more stable
than their hydrodynamic counterparts.