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Playing Music with Magnetic Fields

Published online by Cambridge University Press:  12 April 2016

C. Foullon*
Affiliation:
CPA, K. U. Leuven, Belgium -University of St Andrews, Scotlandcor01corresp
1

Abstract

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Through an increase in magnetic field strength, solar magnetic fields in the atmosphere or subsurface of the Sun can explain the frequency shifts observed on the time scale of the solar activity cycle. A separate study of the contribution of internal magnetic layers clarifies the relative importance of these effects. However, at the base of the convection zone, the cyclical change of orientation of magnetic field lines has a larger effect on global mode frequencies than an increase in field strength alone.

Type
Part 4. The Interaction between Convection and Pulsation
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Dikpati, M. & Charbonneau, P. 1999, ApJ, 518, 508 Google Scholar
Foullon, C. 2001, in INTAS Work. Proc, MHD Waves in Astrophysical Plasmas, ed. Ballester, J.L. & Roberts, B., in pressGoogle Scholar