Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsh43a..10z&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SH43A-10
Astronomy and Astrophysics
Astrophysics
2199 General Or Miscellaneous, 3660 Metamorphic Petrology, 7500 Solar Physics, Astrophysics, And Astronomy, 7524 Magnetic Fields, 7529 Photosphere
Scientific paper
Reconstructed transverse components of the large-scale solar magnetic field are presented for discussion. To solve an inverse problem of calculating these components, two-decadal time series of the solar photospheric field Synoptic Charts (cortesy of J. T. Hoeksema) of the Wilcox Solar Observatory (years 1976 to 2004) were used. Singular value decomposition technique was chosen for solving the inverse problem. One of the time series shows behaviour of the "radial", or "site-of-view" magnetic field component, another one transversal "North-to-South" solar component. It was revealed, that the low-frequency behaviour of these fields does differ on the time scale chosen (two decades) so does the spatial distribution over the solar surface, while magnitudes of them are comparable with each other. It is supposed that the results would be highly useful for building Sun-Earth connection predictive schemes and for the source surface and solar dynamo models.
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