Magnetic helicity flux and the nonlinear galactic dynamo

N Kleeorin; D Moss; I Rogachevskii; D Sokoloff

doi:10.1007/978-94-010-0788-7_29

Magnetic helicity flux and the nonlinear galactic dynamo

N Kleeorin
, D Moss
, I Rogachevskii
, D Sokoloff

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

We demonstrate that by including a flux of helicity in the magnetic helicity balance in the nonlinear galactic dynamo equations, the magnetic field dynamics are changed radically. The large-scale magnetic field now saturates at approximately the equipartition level. This is in contrast to the situation without the flux of helicity, when the magnetic helicity is conserved locally, leading to substantially subequipartition values for the equilibrium large-scale magnetic field.

Original language	English
Title of host publication	Dynamo and Dynamics, a Mathematical Challenge
Editors	P. Chossat, D. Ambruster, I. Oprea
Publisher	Springer, Dordrecht
Pages	247-252
ISBN (Electronic)	9789401007887
ISBN (Print)	9780792370697, 9780792370703
DOIs	https://doi.org/10.1007/978-94-010-0788-7_29
State	Published - Jul 2001

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Cite this

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title = "Magnetic helicity flux and the nonlinear galactic dynamo",

abstract = "We demonstrate that by including a flux of helicity in the magnetic helicity balance in the nonlinear galactic dynamo equations, the magnetic field dynamics are changed radically. The large-scale magnetic field now saturates at approximately the equipartition level. This is in contrast to the situation without the flux of helicity, when the magnetic helicity is conserved locally, leading to substantially subequipartition values for the equilibrium large-scale magnetic field.",

author = "N Kleeorin and D Moss and I Rogachevskii and D Sokoloff",

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T1 - Magnetic helicity flux and the nonlinear galactic dynamo

AU - Kleeorin, N

AU - Moss, D

AU - Rogachevskii, I

AU - Sokoloff, D

PY - 2001/7

Y1 - 2001/7

N2 - We demonstrate that by including a flux of helicity in the magnetic helicity balance in the nonlinear galactic dynamo equations, the magnetic field dynamics are changed radically. The large-scale magnetic field now saturates at approximately the equipartition level. This is in contrast to the situation without the flux of helicity, when the magnetic helicity is conserved locally, leading to substantially subequipartition values for the equilibrium large-scale magnetic field.

AB - We demonstrate that by including a flux of helicity in the magnetic helicity balance in the nonlinear galactic dynamo equations, the magnetic field dynamics are changed radically. The large-scale magnetic field now saturates at approximately the equipartition level. This is in contrast to the situation without the flux of helicity, when the magnetic helicity is conserved locally, leading to substantially subequipartition values for the equilibrium large-scale magnetic field.

U2 - 10.1007/978-94-010-0788-7_29

DO - 10.1007/978-94-010-0788-7_29

M3 - Chapter

SN - 9780792370697

SN - 9780792370703

SP - 247

EP - 252

BT - Dynamo and Dynamics, a Mathematical Challenge

A2 - Chossat, P.

A2 - Ambruster, D.

A2 - Oprea, I.

PB - Springer, Dordrecht

ER -

Magnetic helicity flux and the nonlinear galactic dynamo

Abstract

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