Vector magnetic field in solar polar region.

Details Vector magnetic field in solar polar region. Vector magnetic field in solar polar region.

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999sccha..42.1096d&link_type=abstract

Science in China, Series A, Vol. 42, No. 10, p. 1096 - 1102

Physics

3

Solar Magnetic Fields: Flux Densities

Scientific paper

By means of "deep integration" observations of a videomagnetograph the vector magnetic field was first systematically measured near the solar south polar region on April 12, 1997 when the Sun was in the minimal phase between the 22nd and 23rd solar cycle. It was found that the polar magnetic field deviated from the normal of solar surface by about 42.2°±3.2°, a stronger magnetic element may have smaller inclination, and that within the polar cap above heliolatitude of 50°, the unsigned and net flux densities were 7.8×10-4T and -3.4×10-4T, respectively, and consequently, the unsigned and net fluxes were about 5.5×1022 and -2.5×1022Mx. The net magnetic flux, which belongs to the large-scale global magnetic field of the Sun, roughly approaches the order of the interplanetary magnetic field measured at distance of 1 AU.

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