Volume 433, Number 3, April III 2005
|Page(s)||L53 - L56|
|Published online||29 March 2005|
Letter to the Editor
Magnetic helicity and cosmological magnetic field
AHEP Group, Instituto de Fisica Corpuscular; CSIC/Universitat de Valencia, Edificio de Paterna, Apartado 22085, 46071 Valencia, Spain e-mail: email@example.com
2 IZMIRAN, Troitsk, Moscow Region 142190, Russia e-mail: firstname.lastname@example.org
3 Department of Physics, Moscow State University, Moscow 119992, Russia e-mail: email@example.com
Accepted: 1 March 2005
The magnetic helicity has paramount significance in the nonlinear saturation of the galactic dynamo. We argue that magnetic helicity conservation is violated at the lepton stage in the evolution of the early Universe. As a result, a cosmological magnetic field which can be a seed for the galactic dynamo obtains from the beginning a substantial magnetic helicity which has to be taken into account in the magnetic helicity balance at a later stage of the galactic dynamo.
Key words: magnetic fields / the early Universe
© ESO, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.