Magnetostrophic MRI in the earth's outer core

We show that a simple, modified version of the Magnetorotational Instability (MRI) can develop in the outer liquid core of the Earth, in the presence of a background shear. It requires either thermal wind, or a primary instability, such as convection, to drive a weak differential rotation within the...

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Detalhes bibliográficos
Principais autores: Petitdemange, L, Dormy, E, Balbus, S
Formato: Journal article
Idioma:English
Publicado em: 2008