Generation of Magnetic Field by Combined Action of Turbulence and Shear

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dc.creatorYousef, T. A.
dc.creatorHeinemann, T.
dc.creatorSchekochihin, A. A.
dc.creatorKleeorin, N.
dc.creatorRogachevskii, I.
dc.creatorIskakov, A. B.
dc.creatorCowley, S. C.
dc.creatorMcWilliams, J. C.
dc.date2007-10-17
dc.date2008-05-06
dc.date.accessioned2026-07-07T11:38:11Z
dc.date.available2026-07-07T11:38:11Z
dc.descriptionThe feasibility of a mean-field dynamo in nonhelical turbulence with superimposed linear shear is studied numerically in elongated shearing boxes. Exponential growth of magnetic field at scales much larger than the outer scale of the turbulence is found. The charateristic scale of the field is l_B ~ S^{-1/2} and growth rate is gamma ~ S, where S is the shearing rate. This newly discovered shear dynamo effect potentially represents a very generic mechanism for generating large-scale magnetic fields in a broad class of astrophysical systems with spatially coherent mean flows.
dc.description4 pages, 5 figures; replaced with revised version that matches the published PRL
dc.identifierhttps://arxiv.org/abs/0710.3359
dc.identifierhttp://arxiv.org/abs/0710.3359
dc.identifierPhys.Rev.Lett.100:184501,2008
dc.identifierdoi:10.1103/PhysRevLett.100.184501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199472
dc.subjectAstrophysics
dc.subjectChaotic Dynamics
dc.subjectFluid Dynamics
dc.subjectPlasma Physics
dc.titleGeneration of Magnetic Field by Combined Action of Turbulence and Shear
dc.typetext

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