Abstract
AbstractWe consider a model for the support of a prominence sheet in a twisted magnetic flux tube. Solutions for the equilibrium of the sheet in a constant current density force-free field, as given by Ridgwayet al. (1991) are considered and extended to include a current sheet of finite height.Next we consider the internal region of the prominence by “stretching” the sheet to a finite width. We can analytically select solutions for the field in this region that match onto the external force-free solutions at the edge of the prominence.Horizontal and vertical force balance for this internal region then determines profiles for the pressure and density and the corresponding temperature may be evaluated.
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