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Global Axisymmetric Magnetorotational Instability With Density Gradients
We examine global incompressible axisymmetric perturbations of a differentially rotating MHD plasma with radial density gradients. It is shown that the standard magnetorotational instability (MRI) criterion drawn from the ...
Spectrum Of Global Magnetorotational Instability In A Narrow Transition Layer
The global magnetorotational instability is investigated for a configuration in which the rotation frequency changes only in a narrow transition region. If the vertical wavelength of the unstable mode is of the same order ...