Current sheet model for inverse polarity prominences in twisted flux tubes

Details Current sheet model for inverse polarity prominences in twisted flux tubes Current sheet model for inverse polarity prominences in twisted flux tubes

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995soph..157..223s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 157, no. 1-2, p. 223-249

Physics

8

Current Sheets, Magnetic Flux, Mathematical Models, Solar Physics, Solar Prominences, Sun, Force-Free Magnetic Fields, Polarity, Solar Corona, Solar Magnetic Field

Scientific paper

This paper treats the prominence model of Low (1993) to examine more complicated sheet currents than those used in the original model. Nonlinear force-free field solutions, in Cartesian coordinates, invariant in a given direction, are presented to show the possibility of an inverse-polarity prominence embedded in a large twisted flux tube. The force-free solution is matched to an external, unsheared, potential coronal magnetic field. These new solutions are mathematically interesting and allow an investigation of different profiles of the current intensity, magnetic field vector and mass density in the sheet. These prominence models show a general increase in magnetic field strength with height in agreement with observations. Other prominence properties are shown to match the observed values.

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