The effect of an inclined magnetic field on solar oscillation frequencies

Details The effect of an inclined magnetic field on solar oscillation frequencies The effect of an inclined magnetic field on solar oscillation frequencies

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...395..307g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 395, no. 1, p. 307-315.

Astronomy and Astrophysics

Astrophysics

24

Magnetic Field Configurations, Solar Interior, Solar Magnetic Field, Solar Oscillations, Solar Spectra, Axes Of Rotation, Fine Structure, Pre-Main Sequence Stars, Solar Rotation

Scientific paper

The radiative interior of the sun could be hiding a large-scale magnetic field, which might not be axisymmetric about the observed rotation axis. Using helioseismic data, we estimate that the strength of any such relic field must be less than about 30 MG, if the field is axisymmetric about the rotation axis. The shape oblateness caused by a field at this limiting strength is about 5-10 x 10 exp -6. Stronger fields can be accommodated by the helioseismic data if they are inclined to the rotation axis. We further conclude that the convention zone and at least the outer part of the radiative interior rotate on the same axis.

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