1993•The Astrophysical JournalRequires access
On the magnetic and velocity field geometry of simple sunspots
A. M. Title, Z. Frank, Richard A. Shine, T. D. Tarbell, Kenneth P. Topka, G. B. Scharmer, Wolfgang Schmidt
Open publisher page 182 citations
Abstract
It is presently shown that a simple sunspot model with azimuthal variations in inclination, but lacking azimuthal field-strength variations, is free from azimuthal Lorentz forces. The meridional currents arising from the inclination variations are parallel to the field lines, suggesting that a cylindrically symmetric magnetostatic sunspot model can be perturbed into one with azimuthal variations in inclination with adjustment of the meridional force balance.