Elliptic and magneto-elliptic instabilities
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove
Drive, Pasadena CA, 91109
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Vortices are the fundamental units of turbulent flow. Understanding their stability properties therefore provides fundamental insights on the nature of turbulence itself. In this contribution I briely review the phenomenological aspects of the instability of elliptic streamlines, in the hydro (elliptic instability) and hydromagnetic (magneto-elliptic instability) regimes. Vortex survival in disks is a balance between vortex destruction by these mechanisms, and vortex production by others, namely, the Rossby wave instability and the baroclinic instability.
© Owned by the authors, published by EDP Sciences, 2013