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Magnetic Field in the Sun’s Interior from Oscillation Data

Published online by Cambridge University Press:  12 April 2016

W.A. Dziembowski
Affiliation:
Copernicus Astronomical Center, Warszawa, Poland
P.R. Goode
Affiliation:
Department of Physics, N.J.I.T., Newark, NJ, USA

Abstract

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Solar oscillations provide a probe of the internal magnetic field of the Sun if the field has sufficient intensity. Using the oscillation data of Libbrecht, we find evidence for a 2 ± 1 megagauss quadrupole toroidal field centered at 0.7 of the solar radius which is barely beneath the base of the convection zone. This field, by its location and symmetry, may be associated with the dynamo that drives the Sun’s 22-year activity cycle.

Type
Part 3: Helioseismology
Copyright
Copyright © Kluwer 1990

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