Seismic sounding of the solar core: Purging the corruption from the Sun's magnetic activity

Document Type

Article

Publication Date

1-20-1997

Abstract

Probing the structure and rotation of the solar core is one of the greatest challenges to helioseismology. We show that the seismic information in the observed low degree solar oscillations which probe the core is severely contaminated. This contamination arises from the Sun's near surface magnetic activity. The effect on the oscillation frequencies varies with the solar cycle-vanishing at solar minimum and growing with increasing surface activity. We demonstrate that this contamination can be quantified and removed after determining the fine structure of the entire oscillation spectrum.

Identifier

3142623089 (Scopus)

Publication Title

Astronomy and Astrophysics

ISSN

00046361

First Page

919

Last Page

924

Issue

3

Volume

317

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