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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 544920.0, MPI für Physik / MPI für Physik
Probing the internal solar magnetic field through g-modes
Authors:Rashba, T. I.; Semikoz, V. B.; Turck-Chieze, S.; Valle, J. W. F.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Monthly Notices of the Royal Astronomical Society
Journal Abbrev.:Mon.Not.R.Astron.Soc.
Issue / Number:377
Start Page:453
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The observation of g-mode candidates by the SoHO mission opens the possibility of probing the internal structure of the solar radiative zone (RZ) and the solar core more directly than possible via the use of the p-mode helioseismology data. We study the effect of rotation and RZ magnetic fields on g-mode frequencies. Using a self-consistent static MHD magnetic field model we show that a 1% g-mode frequency shift with respect to the Solar Seismic Model (SSeM) prediction, currently hinted in the GOLF data, can be obtained for magnetic fields as low as 300 kG, for current measured modes. On the other hand, we also argue that a similar shift for the case of the low order g-mode candidate frequencies can not result from rotation effects nor from central magnetic fields, unless these exceed 8 MG.
Classification / Thesaurus:Astroparticle Physics
Comment of the Author/Creator:9 pages, 2 figures
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2006-165
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/astro-ph/0611728
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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