Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-01-15T00:22:01.036Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Magnetic Helicity in MHD

Published online by Cambridge University Press:  12 August 2011

Simon Candelaresi ,
Fabio Del Sordo  and
Axel Brandenburg
Simon Candelaresi
Affiliation:
NORDITA, AlbaNova University Center, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden and Department of Astronomy, Stockholm University, SE 10691 Stockholm, Sweden
Fabio Del Sordo
Affiliation:
NORDITA, AlbaNova University Center, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden and Department of Astronomy, Stockholm University, SE 10691 Stockholm, Sweden
Axel Brandenburg
Affiliation:
NORDITA, AlbaNova University Center, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden and Department of Astronomy, Stockholm University, SE 10691 Stockholm, Sweden
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Observations have shown that the Sun's magnetic field has helical structures. The helicity content in magnetic field configurations is a crucial constraint on the dynamical evolution of the system. Since helicity is connected with the number of links we investigate configurations with interlocked magnetic flux rings and one with unlinked rings. It turns out that it is not the linking of the tubes which affects the magnetic field decay, but the content of magnetic helicity.

Keywords

Sun: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S271: Astrophysical Dynamics: From Stars to Galaxies , June 2010 , pp. 369 - 370
Copyright
Copyright © International Astronomical Union 2011

References

Moffatt, H. K., J. Fluid Mech. 35, 117 (1969).CrossRefGoogle Scholar
Pevtsov, A. A., Canfield, R. C. & Metcalf, T. R. 1995, ApJ, 440, L109CrossRefGoogle Scholar
Leka, K. D., Canfield, R. C., McClymont, A. N., van Driel-Gesztelyi, L., ApJ 462, 547 1996CrossRefGoogle Scholar
Gibson, S. E., Fletcher, L., Del Zanna, G., et al. , ApJ 574, 1021 2002CrossRefGoogle Scholar
Del Sordo, F., Candelaresi, S., Brandenburg, A., Phys. Rev. E 81, 036401 2010CrossRefGoogle Scholar