Work

Nonlinear α‐Effect in Dynamo Theory

Year: 1999

Type: article

Abstract: The standard two-scale theory of the dynamo coefficient α in incompressible isotropic helical MHD turbulence is extended to include nonlinear effects of , the large-scale magnetic field. We express α in terms of statistical quantities that can be calculated from numerical simulations of the case =0. For large magnetic Reynolds numbers, our formula agrees approximately with that of Kraichnan but disagrees with that of Cattaneo & Hughes.

Source: The Astrophysical Journal

DOI: 10.1086/306877

Authors: George B. Field, Eric G. Blackman, Hongsong Chou

Institutions: Center for Astrophysics Harvard & Smithsonian, California Institute of Technology, Harvard University

Language: English

Topic: Solar and Space Plasma Dynamics

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Aeronautics and Space Administration, Aspen Center for Physics

OpenAlex ID: W2054590025

FWCI: 9.242

Cites: 29

Cited by: 80

Related to: 10