Polar magnetic flux on the Sun in 1996-2003 from SOHO/MDI data

Details Polar magnetic flux on the Sun in 1996-2003 from SOHO/MDI data Polar magnetic flux on the Sun in 1996-2003 from SOHO/MDI data

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...428l...5b&link_type=abstract

Astronomy and Astrophysics, v.428, p.L5-L8 (2004)

Astronomy and Astrophysics

Astrophysics

13

Sun, Solar Magnetic Field, Polar Magnetic Field Reversals, Magnetic Flux

Scientific paper

Polarity of the polar magnetic fields on the Sun changes in every 11-year sunspot cycle, affecting the large-scale structure of the corona and heliosphere. Using the SOHO/MDI data, the flux of the radial component of the magnetic field is estimated for different latitudinal zones. It is estimated that the total magnetic flux of the Northern polar zone, from 78° to 88°, is about 1.5-1.7 × 1022 Mx, and it is about 2.3-2.5× 1022 Mx in the similar Southern polar zone. The new data reveal an interesting result that the total polar magnetic fluxes do not vary significantly during the polar magnetic field reversals in both hemispheres, while the positive and negative parts of the total fluxes do change.

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