It is shown that if a thin, isolated and untwisted magnetic flux tube, consisting of a current-free core bounded by a thin current sheath, is in an ‘overall’ equilibrium in a stratified atmosphere, then there is, in general, ...

The transmission of the energy of an acoustic wave incident on a magnetic flux sheath embedded in a homogeneous nonmagnetic plasma is analyzed for the case where finite current sheets are situated between the flux sheath ...