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- W1638304685 abstract "The magnetic field dynamo is a mechanism which occurs in several different environments, such as the interior of stars, accretion disks or the interstellar medium. Because of this diversity, the equations which describe its behavior should incorporate the peculiarities of such different regions. For example, particles in low ionized and strongly magnetized objects, such as protostellar accretion disks, should be subject to the Hall effect, which modifies the Ohm’s law. In this work, we study how the Hall effect alters the equations that govern the turbulent mean field dynamo. We derive the equations for the e.m.f, cross helicity and for the small and large scale magnetic helicities. We consider a two scale model in which turbulent is induced in a scale lS and the magnetic field is generated at a larger scale lL and the Hall effect is relevant in a intermediate scale lH. We obtain that even in the presence of Hall effect the mechanism responsible for the dynamo action is still the inverse cascade of magnet..." @default.
- W1638304685 created "2016-06-24" @default.
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- W1638304685 date "2006-01-01" @default.
- W1638304685 modified "2023-10-17" @default.
- W1638304685 title "Influence of the Hall effect on the mean field dynamo" @default.
- W1638304685 doi "https://doi.org/10.1063/1.2405960" @default.
- W1638304685 hasPublicationYear "2006" @default.
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