Current Helicity and the Small-Scale Dynamo

Details Current Helicity and the Small-Scale Dynamo Current Helicity and the Small-Scale Dynamo

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004arep...48..949g&link_type=abstract

Astronomy Reports, vol. 48, Issue 11, p.949-953

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The small-scale dynamo inherent to mirror-asymmetric turbulence can generate a magnetic field characterized by substantial mirror asymmetry of the associated electric currents. In general, the corresponding helicity should be taken into account in calculations of the helicity balance, which is now used as a basis for models describing the suppression of the large-scale dynamo. However, the mirror asymmetry of the fluctuating magnetic fields is concentrated on scales much shorter than the magnetic-loop diameter. Therefore, the unaccounted-for contribution to the helicity balance is, in fact, not important.

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