SOHO CoRoT Kepler Picard SDO GONG
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Torsional motion of sunspots

Auteur

Pinter Balazs

Institution

Aberystwyth University

Theme

Local helioseismology
Auteur(s) supplémentaire(s)Erin Connor, William Penman, Keiran Burrows

Abstract

Analysing the dynamics of sunspots is a powerful way of investigating sub-photospheric magnetic fields. The torsional motion of sunspots is investigated by analysing SOHO/MDI continuum images. High resolution images make it possible to compare the torsional oscillatory behaviour of a sunspot, at different distances from the centre of the sunspot. Wavelet spectra are used to study the temporal behaviour of sunspot oscillations.
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