Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh32a0720u&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SH32A-0720
Physics
2169 Sources Of The Solar Wind
Scientific paper
Usmanov et al. (JGR, 105, 12675) developed an axisymmetric model in which a steady coronal outflow was simulated using a surface dipole magnetic field with an Alfvén wave moment and energy flux into the open magnetic field region. In that work, north-south symmetry was assumed and a steady-state solution for the solar wind was obtained, which was compared to Ulysses data. That the solar corona is not fully north-south symmetric near solar minimum has been known for many years. A number of studies have attributed this asymmetry to the presence of a quadrupole component in addition to the dipole one. The ramifications for solar wind structure from such an asymmetry are largely unexplored. In this presentation, we relax the assumption of north-south symmetry by adding a quadrupole to the solar magnetic field. We simulate the solar corona and solar wind structure in the region from the coronal base to 1 AU and investigate the effects of the quadrupole on the solar wind plasma and magnetic field parameters.
Besser Bruno Philipp
Goldstein Michel L.
Usmanov Arcadi V.
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