Recent years have witnessed dramatic progress in our understanding of how turbulence
arises and transports angular momentum in astrophysical accretion disks. The key …

Abstract Decades ago S. Lundquist, S. Chandrasekhar, PH Roberts and RJ Tayler first
posed questions about the stability of Taylor–Couette flows of conducting material under the …

Ongoing studies in mathematical depth, and inferences fromhelioseismological'observations
of the internal solar rotation have shown up the limitations in our knowledge of the solar …

The gravitational collapse of rapidly rotating massive stars can lead to the onset of the low
T/| W| instability within the central proto-neutron star (PNS), which leaves strong signatures …

Global time-dependent simulations provide a means to investigate time-dependent dynamic
evolution in accretion disks. This paper seeks to extend previous local simulations by …

This updated revision gives a complete and topical overview on Nonconservative Stability
which is essential for many areas of science and technology ranging from particles trapping …

Magnetism is one of the most pervasive features of the Universe, with planets, stars and
entire galaxies all having associated magnetic fields. All of these fields are generated by the …

The global development of magnetohydrodynamic turbulence in an accretion disk is studied
within a simplified disk model that omits vertical stratification. Starting with a weak vertical …

We use the mean-field dynamo equations to show that spatially and temporally incoherent
fluctuations in the helicity in mirror-symmetric turbulence in a shearing flow can generate a …

Axisymmetric stability of viscous resistive magnetized Couette flow is re-examined, with the
emphasis on flows that would be hydrodynamically stable according to Rayleigh's criterion …