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Tuesday 16 Jun 2020UK-SOSS seminar: Magnetic helicity: decompositions and methods of localization

Prof Mitchell Berger - University of Exeter

Online webinar - see abstract for access details 11:00-12:00

This is a UK-Solar Online Seminar Series talk given by a member of CGAFD so I am advertising it here.

Magnetic helicity is an ideal MHD invariant; it measures geometric and topological properties of a magnetic field. The talk will begin by reviewing helicity and its mathematical properties. It can be decomposed in several ways (for example, self and mutual helicity, Fourier spectra, field line helicity, linking, twist, and writhe). The talk will also review methods of measuring the helicity flux, as well as applications in solar and stellar astrophysics. I will then discuss some new developments in measuring localized concentrations of helicity in a well-defined, gauge invariant manner, using wavelets.

To access the seminar use the following Zoom link:

Meeting ID 953 3817 1418

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