• Online documentation
• Reference manual: refman.pdf
• A Glossary of Magnetic Charge Topology
• Dowload the suite of programs.mpole.tar
• Sample input files:
• example.pns
• ar930605.pns
• usa.pns (areas and centroids of states from a US map, in arbitrary units and signs) [footprint]
  

Examples

A collection of examples from the literature. Source configurations have been translated from tables or figures from the classic MCC papers which use point sources. Consult the original reference for an explanation of units and labeling, these have been retained when possible. Those described as "submerged poles models" do not have footprints since the sources lay beneath the z=0 surface.
• Baum & Bratenahl 1980, Sol. Phys. 67, 245-258. [footprint]
• Gorbachev and Somov 1989, Sov. Astron 33, 57-61. Submerged pole model of AR2776 (4 sources)
• Demoulin et al. 1994, Sol. Phys. 150, 221-243. Submerged pole model of AR2776 (18 sources)
• Longcope & Silva 1998, Sol. Phys. 179, 349-377. Model of AR6993/6994 (13 sources) [footprint]
• Longcope & Klapper 2002, ApJ 579, 468-481 Model of decaying AR on 1993 June 5 (20 sources) [ footprint, summary graph]

Papers

Please download the software and use it freely. We ask for two pieces of information that we can report to our sponsors. We also ask that if you use the software in a publication that you acknowledge the source and cite one of the papers in which its basis was first published (any of the 4 listed below). Please direct any questions to Dana Longcope.

The model is described in several published papers:

• "Topology and current ribbons: A model for current, reconnection and flaring in a complex, evolving corona", Longcope, D.W., Sol. Phys, 169, 91-121 (1996)

• Separator current sheets: Generic features in minimum-energy magnetic fields subject to flux constraints, D.W. Longcope, Physics of Plasmas, 8, 5277 (2001)

• A general theory of connectivity and current sheets in coronal magnetic fields anchored to discrete sources, D.W. Longcope and I. Klapper, Astrophysical Journal, 579, 468-481 (2002) [ PostScript]

• A comparison of the Minimum Current Corona to a magnetohydrodynamic simulation of quasi-static coronal evolution, D.W. Longcope and T. Magara, ApJ, 608, 1106 (2004)