Quasi-global, linear analysis of a magnetized disc
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 270:1 (1994) 138-152
The stability of differentially rotating, weakly magnetized stellar radiative zones
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 266:4 (1994) 769-774
MHD turbulence in an accretion disk
AIAA 25th Plasmadynamics and Lasers Conference, 1994 (1994)
Abstract:
A long-standing problem in the theory of astrophysical accretion disks has been to determine the nature of the stress that transports orbital angular momentum outward. The recent discovery of a local MHD instability provides strong evidence that transport is through turbulent Maxwell and Reynolds stresses. Using numerical simulations we have demonstrated that a weak seed magnetic field in an accretion disk is unstable and leads to sustained MHD turbulence at dynamically important levels. The accretion disk provides a natural laboratory for the study of MHD turbulence.Local shear instabilities in weakly ionized, weakly magnetized disks
The Astrophysical Journal American Astronomical Society 421 (1994) 163
A limitation of the generation of magnetic fields
The Astrophysical Journal American Astronomical Society 413 (1993) l137