Theoretical model of the solar corona during sunspot minimum. I - Quasi-static approximation

Details Theoretical model of the solar corona during sunspot minimum. I - Quasi-static approximation Theoretical model of the solar corona during sunspot minimum. I - Quasi-static approximation

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...284..412o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 284, Sept. 1, 1984, p. 412-421.

Astronomy and Astrophysics

Astrophysics

21

Solar Corona, Stellar Models, Sunspot Cycle, Approximation, Magnetic Poles, Quadrupoles, Quasi-Steady States, Solar Magnetic Field

Scientific paper

The model of the solar corona (1.5 to 5 solar radius) during sunspot minimum is constructed. It is suggested that pole-equator asymmetry is caused by the interaction between global azimuthal electric currents in the corona and potential magnetic fields originated below. The asymmetry between the two hemispheres, which can be due to the magnetic quadrupole, is considered in detail. It is shown that an additional quadrupole term in the magnetic field representation affects the position of polar coronal hole boundaries differently in the two hemispheres. As a result, the outflow from the two polar regions is found to be different.

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