Coronal Magnetic Topologies in a Spherical Geometry II. Four Balanced Flux Sources

Details Coronal Magnetic Topologies in a Spherical Geometry II. Four Balanced Flux Sources Coronal Magnetic Topologies in a Spherical Geometry II. Four Balanced Flux Sources

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006soph..238...13m&link_type=abstract

Solar Physics, Volume 238, Issue 1, pp.13-27

Physics

3

Scientific paper

The Sun’s magnetic field is the primary factor determining the structure and evolution of the solar corona. Here, magnetic topology is used in combination with a Green’s function method to model the global coronal magnetic field with a spherical photosphere. We focus on the case of three negative flux sources and one positive source, completing our previous categorisation of the topological states and bifurcations that are present in quadrupolar configurations in a spherical geometry. Three fundamental varieties of topological state are found, with three types of bifurcation taking one to the other. A comparison to the equivalent results for a planar photosphere is then carried out, and the differences between the two cases are explained.

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