Magnetic Helicity

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• Mitchell Berger (University of Exeter)
• Monday 01 February 2010, 16:00-17:00
• MR14, DAMTP, Pav. F.

If you have a question about this talk, please contact Laurène Jouve.

Magnetic helicity measures geometric and topological properties of a field, such as twist, writhe, shear, linking, and braiding. I will discuss the relation between helicity and field structure, and show how magnetic helicity can be calculated directly from field line data. Observations of the flow of helicity into and out of the solar corona give information on both the solar dynamo and solar activity.

This talk is part of the DAMTP Astrophysics Seminars series.

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